Dissertations / Theses on the topic 'Stability Enhancement'
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Houghton, Timothy Oliver. "Axial compressor stability enhancement." Thesis, University of Cambridge, 2010. https://www.repository.cam.ac.uk/handle/1810/252194.
Full text朱太秀 and Tai-xiu Zhu. "Knowledge-based assessment and enhancement of voltage stability." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31236455.
Full textZhu, Tai-xiu. "Knowledge-based assessment and enhancement of voltage stability /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18061680.
Full textCao, Qiang. "Stability control and throughput enhancement for slotted ALOHA networks." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265329.
Full textVoolapalli, Ravi Kumar. "Stability enhancement of anaerobic digestion through intermediate product regulation." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390626.
Full textZhang, Tan. "Adaptive Energy Storage System Control for Microgrid Stability Enhancement." Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-dissertations/190.
Full textAli, Muhammad. "Power System Stability Enhancement through Data Center Ancillary Services." Diss., North Dakota State University, 2015. https://hdl.handle.net/10365/27636.
Full textQiu, Xiao. "Self-esteem, motivation, and self-enhancement presentation on WeChat." Scholar Commons, 2018. http://scholarcommons.usf.edu/etd/7221.
Full textWu, Nancy Y. (Nancy Yue). "Stability enhancement of atomic timekeeping using Raman adiabatic rapid passage." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/119294.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 83-85).
Current state-of-the-art atomic clocks span the range from large accurate fountain clocks such as the NIST-F2 to relatively small inaccurate chip scale clocks. Small clocks with higher accuracy could greatly expand the range of applications for precision timekeeping, and enable cheaper implementation of existing applications. This type of clock may be realized by use of optical Raman interferometry based on pulsed interrogation of cold atoms. However, this method suffers from serious systematic error sources, e.g., AC Stark shift and Zeeman shift, which alter the atomic resonance frequency. A new method based on adiabatic rapid passage (ARP) has been recently demonstrated at Draper which has significantly reduced phase sensitivity to differential AC Stark shift. It is found that compared to standard Raman, use of ARP enhances timekeeping stability by a factor of three with stability of 2 x 10⁻¹² at 100 seconds. Increasing data rate may also improve short term stability. With all of the above improvements, ARP enhances short term fractional stability to 7 x 10⁻¹² at one second.
by Nancy Y. Wu.
S.M.
Weichert, Stephanie April. "Tip clearance flows in axial compressors : stall inception and stability enhancement." Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/243400.
Full textNazari, Hamid. "Enhancement of operational stability of glucose oxidase by immobilization on nylon." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0010/NQ41480.pdf.
Full textAhmed, Faisal Mahmood. "Estimated Droop Control for Parallel Connected Voltage Source Inverters : Stability Enhancement." Thesis, Karlstads universitet, Avdelningen för fysik och elektroteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-30794.
Full textLakkireddy, Jahnavi. "Steady State Voltage Stability Enhancement Using Shunt and Series FACTS Devices." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1881.
Full textGade, Prasad V. N. "Performance Enhancement and Stability Robustness of Wing/Store Flutter Suppression System." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/30339.
Full textPh. D.
Juanuwattanakul, Parachai. "Bus voltage ranking and voltage stability enhancement for unbalanced multiphase networks." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/301.
Full textSalih, Embaiya. "Superconducting magnetic energy storage for power system stability and quality enhancement." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2018. https://ro.ecu.edu.au/theses/2084.
Full textKanchanaharuthai, Adirak. "Small-Signal Stability, Transient Stability and Voltage Regulation Enhancement of Power Systems with Distributed Renewable Energy Resources." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1321988036.
Full textCai, Hui. "Enhancement of power system dynamic stability using electric vehicles and distributed generation." Thesis, Queen's University Belfast, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602450.
Full textAlsafih, Hamza A. "Transmission stability enhancement using Wide Area Measurement Systems (WAMS) and critical clusters." Thesis, University of Bath, 2013. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607141.
Full textHassan, Faiza. "Heterogeneous catalysis in supercritical fluids : the enhancement of catalytic stability to coking." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/3166/.
Full textHsiao, Hui-Chun. "ANTHOCYANIN COLOR ENHANCEMENT BY USING CATECHIN AS COPIGMENTS AND STABILITY DURING STORAGE." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397748937.
Full textElkington, Katherine. "On the Use of Wind Power for Transient Stability Enhancement of Power Systems." Thesis, KTH, Elektriska energisystem, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-118931.
Full textFu, Le. "Voltage stability monitoring and enhancement in electrical power systems using transformer tap changers." Thesis, Imperial College London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.506484.
Full textGREENHALGH, ANGELA BARBOSA. "VOLTAGE STABILITY ENHANCEMENT IN THE OPERATION OF POWER SYSTEMS THROUGH AN OPTIMIZATION MODEL." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1998. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=8943@1.
Full textMuito tem sido feito para que se possa entender os mecanismos que levam o sistema a uma situação de instabilidade de tensão e até mesmo ao colapso, assim como também para se suprir a necessidade de ferramentas analíticas capazes de prever e avaliar a proximidade do colapso de tensão em sistemas complexos, identificando as áreas susceptíveis à instabilidade de tensão. Uma vez detectada a inconveniente proximidade a uma condição de operação susceptível ao colapso de tensão, é necessária a identificação de grandezas-chave e sensibilidades, que forneçam entendimento suficiente, para ajudar no desenvolvimento de metodologias para reforçar as condições de estabilidade de tensão. Tendo isto como objetivo, este trabalho trata do problema de reforço da estabilidade de tensão através da mudança do perfil de tensão, utilizando como ferramenta computacional um algoritmo de otimização. Há no sistema variáveis de controle que interferem diretamente no perfil de tensão, tais como, tensão base nos geradores e compensadores, taps de transformadores, e capacitadores e reatores usados para compensação de potência reativa. Entretanto, quando as condições de estabilidade já se encontram deterioradas, as ações de controle do perfil de tensão podem levar a resultados insatisfatórios, podendo mesmo agravar o problema. Neste trabalho é apresentada uma metodologia, baseada em algoritmo de otimização, que fornece a lista de variáveis de controle mais eficientes para o reforço da estabilidade de tensão, e a direção em que os controles devem ser acionados. O interesse é obter um ponto de operação viável mais robusto, do ponto de vista de estabilidade de tensão, e não necessariamente um ponto de operação ótimo.
Much hás been done for the understanding of the voltage instabilitu mechanisms and to supply the necessity of analytical tools, which should have the ability tom predict and evaluate the proximity of voltage collapse in complex systems, identifying the critical áreas susceptible to voltage istability. Once the inconvenient proximity to an operating condition susceptible to voltage collapse is identified, it is necessary to look for the key factors and sensitivities that provide the reinforcement of the voltage stability conditions. Having it as a goal, this work treats the problem of reinforcing the voltage stability conditions, through changes of the voltage profile, using an optimal algorithm as a computational tool. There are control variables in the system which directly interfere on the voltage profile, such as, voltage set point on generators and compensators, transformer taps, capacitors and reactors. However, when the voltage stability conditions are already deteriorated, the voltage profile control actions may lead to unsatisfactory results, and may even aggravate the problem. It is presented a methodology based on an optimal, that provides the list of the most efficient control variables for the reinforcement of voltage stability, and the corresponding direction of movement. The search is for a feasible operating point, more robust in relation to voltage stability, and not necessarily for an optimal operating point.
Behbehani, Hussain M. "Enhancement of power system stability using fuzzy logic based supervisory power system stabilizer." Thesis, University of Edinburgh, 2008. http://hdl.handle.net/1842/10778.
Full textAlmutairi, Abdulaziz. "Enhancement of power system stability using wide area measurement system based damping controller." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/enhancement-of-power-system-stability-using-wide-area-measurement-system-based-damping-controller(7d98d164-8051-4662-ad18-374620d28a00).html.
Full textSagha, Hossein. "Development of innovative robust stability enhancement algorithms for distribution systems containing distributed generators." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/91052/1/Hossein_Sagha_Thesis.pdf.
Full textBricker, Garrett Demyan. "Analytical Methods of Testing Solid Waste and Leachate to Determine Landfill Stability and Landfill Biodegradation Enhancement." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/35162.
Full textMaster of Science
VEGA, JORGE LEONIDAS LAFITTE. "VOLTAGE STABILITY ASSESSMENT AND ENHANCEMENT IN VOLTAGE-CONTROLLED BUSES BY SYNCHRONOUS GENERATORS AND COMPENSATORS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2009. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=14009@1.
Full textApós a incidência de alguns colapsos de tensão em sistemas de transmissão de energia a nível mundial, a segurança de tensão tornou-se um assunto de muito interesse nos últimos anos devido à importância do seu impacto. O fenômeno de estabilidade de tensão deve-se a fluxos de potência ativa e reativa excessivos na rede de transmissão e está associado às restrições ambientais e econômicas que impedem a expansão da rede. Atualmente, sabese da existência de uma máxima carga que pode ser alimentada pela rede e é a manifestação mais conhecida do fenômeno mas, também, é possível que o problema manifeste-se pela existência de uma máxima injeção de potência ativa e reativa na rede por geradores e compensadores síncronos. E mais, em situações de carregamento elevado da rede, é possível que ações de controle de tensão tenham efeito oposto ao usual. É apresentado um método seqüencial iterativo de avaliação e reforço para as condições de carregamento da rede em barras de tensão controlada, embora na literatura somente as barras de carga são analisadas. A verificação do comportamento do gerador e compensador síncrono como dispositivo de controle torna-se necessária já que, se funcionar de forma inversa, poderá levar o sistema ao colapso por problemas de tensão. Uma vez que a avaliação do carregamento da rede de transmissão detectou uma barra de geração crítica em um determinado ponto de operação, o reforço consiste do cálculo de ações de controle para aumentar a distância ou margem de potência entre a geração daquela barra e o novo máximo permitido. Muitas vezes isso pode ser conseguido através da alteração do perfil de tensão com a conseqüente redução nas perdas. Muitas outras vezes, o redespacho de potência ativa torna-se necessário. As etapas do método são: identificar a barra crítica, identificar a sub-rede utilizada para transmitir potência ativa dessa barra para as cargas, nessa sub-rede determinar o caminho e ramo mais carregados e, desviar o fluxo de potência do ramo mais carregado para outros. A seqüência é repetida até que as novas margens de potência sejam consideradas aceitáveis. Exemplos numéricos ilustrativos reais com o sistema brasileiro são apresentados. É verificado que o método proposto realmente produz os resultados desejados.
After the incidence of some voltage collapses in the energy transmission systems in the world, the voltage security became an issue of great interest in the last years due to the importance of its impact. The phenomenon of voltage stability is due to the excessive active and reactive power flow in the electrical transmission network and has been associated with environment questions and lack of financial resources for transmission system expansion. Nowadays, it is well-known that there is a maximum power that the network can transmit to a load bus and is the best known manifestation of the phenomenon, but, is not familiar to many that there is a maximum power that can be injected by generators and synchronous compensators into the network. Moreover, in heavy loading conditions is possible that voltage control actions would have the inverse effect. It is shown a sequential iterative method for assessment and voltage security reinforcement in voltage-controlled buses, although the literature only the load buses are analyzed. The verification of the behaviour of the generator and synchronous compensator as control device becomes necessary since, if it works in an inverse way, it can take the system to the voltage collapse. Once the assessment is performed and is detected one generation critical bus in some operating point, the objective of the reinforcement function is to calculate adequate control actions in order to increase the distance or power margin between the actual generation and the new maximum power flow. Several times this may be achieved by voltage profile changes and consequent loss reduction. Sometimes that procedure is not enough and active generation rescheduling is recommended. The stages of the method are: identify the critical bus, identify the sub-network used to transmit active power flow from this bus to load buses, in this sub-network the critical transmission path and critical branch are determined and redirect the power flow from the branch more loaded to others. The sequence is repeated until resultant power margins are judged suitable. Illustrative real life numerical examples with the Brazilian system are provided. It is verified that the proposed method really produces the desired results.
Chen, Yu-Jen. "The solubility enhancement and the stability assessment of rifampicin, isoniazid and pyrazinamide in aqueous media." Thesis, Rhodes University, 2000. http://hdl.handle.net/10962/d1005009.
Full textJoseph, Tibin. "Operation and control of voltage source converters in transmission networks for AC system stability enhancement." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/111498/.
Full text麥禮安 and Lai-on Mak. "Fuzzy logic statcom controller design with genetic algorithm application for stability enhancement of interconnected power systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B42128699.
Full textMak, Lai-on. "Fuzzy logic statcom controller design with genetic algorithm application for stability enhancement of interconnected power systems." Click to view the E-thesis via HKUTO, 2000. http://sunzi.lib.hku.hk/hkuto/record/B42128699.
Full textKim, Yuan Hwan. "Lactate dehydrogenase regulation of the metmyoglobin reducing system to improve color stability of bovine muscles through lactate enhancement." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2966.
Full textPham, Ngoc Duy. "Efficiency enhancement in solution-processed organic-inorganic perovskite solar cells." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/133985/1/Ngoc%20Duy_Pham_Thesis.pdf.
Full textWijenayaka, A. K. Lahiru Anuradha. "Improved theoretical prediction of nanoparticle stability and the synthesis, characterization, and application of gold nanopartticles of various morphology in surface-enhanced infrared spectroscopy." Diss., University of Iowa, 2015. https://ir.uiowa.edu/etd/1931.
Full textMusa, Aysar [Verfasser], Antonello [Akademischer Betreuer] Monti, and Albert [Akademischer Betreuer] Moser. "Advanced control strategies for stability enhancement of future hybrid AC/DC networks / Aysar A. Aydan Musa ; Antonello Monti, Albert Moser." Aachen : Universitätsbibliothek der RWTH Aachen, 2019. http://d-nb.info/1210929228/34.
Full textStrasunske, Kristina. "Automatic monitoring systems for trace metals in natural and waste water : Nafion coated solid metal electrodes for sensitivity enhancement and stability improvement." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for kjemi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-11245.
Full textGmuender, Christopher. "On black-and-white paper image-stability enhancement effectiveness of toning treatments on silver gelatin prints determined by the hydrogen peroxide fuming test /." Online version of thesis, 1992. http://hdl.handle.net/1850/10950.
Full textRajaguru, Mudiyanselage Thilanki Maneesha Dahigamuwa. "Enhancement of Rainfall-Triggered Shallow Landslide Hazard Assessment at Regional and Site Scales Using Remote Sensing and Slope Stability Analysis Coupled with Infiltration Modeling." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7562.
Full textEck, Michael [Verfasser], and Michael [Akademischer Betreuer] Krüger. "Performance enhancement of hybrid nanocrystal-polymer bulk heterojunction solar cells : : aspects of device efficiency, reproducibility, and stability = Verbesserung der Leistung von hybriden Nanokristall-Polymer Heteroübergangs-Solarzellen : Aspekte der Solarzellen-Effizienz, -Reproduzierbarkeit und -Stabilität." Freiburg : Universität, 2014. http://d-nb.info/1123481768/34.
Full textLi, Tianya. "Electromechanical wave propagation phenomenon and its control implications in power systems." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/95962/1/Tianya_Li_Thesis.pdf.
Full textKelly, Ryan J. "Solid Waste Biodegradation Enhancements and the Evaluation of Analytical Methods Used to Predict Waste Stability." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/32484.
Full textMaster of Science
Shah, Rakesh K. "Enhancements of Mechanical, Thermal Stability, and Tribological Properties by Addition of Functionalized Reduced Graphene Oxide in Epoxy." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc699889/.
Full textКунченко, Тетяна Юріївна. "Параметрична оптимізація умовно стійких електромеханічних систем методом діаграм якості керування." Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21345.
Full textThe dissertation for the degree of technical sciences candidate by specialty 05.09.09 – electrical complexes and systems. – NTU "KhPI". – Kharkiv, 2016. The dissertation is devoted to researching and solving parameter optimization problems for multiple-integration system astatic regulators with minimax criterion application. Parametric optimization and control efficiency enhancement methods are analyzed as applied to conditionally stable multiple-integration electromechanical systems through control quality diagram technique. Existence of the optimal solution for conditionally stable electromechanical system control on the basis of a complex control efficiency criterion – Q-factor maximum and stability margin - is theoretically substantiated. Computer-aided techniques are worked out to develop and analyze conditionally stable system control quality diagrams in time and frequency domains in which zones of enhanced Q-factor and stability margin are marked. An engineering technique is validated for control quality diagram application to optimization synthesis of systems with astatism of the 2nd and 3rd order using the control quality diagram technique criterion. Control quality diagram technique criterion based parametric optimization of different conditionally stable electromechanical systems with series and parallel compensation is performed taking into account the control object structure features, including nonminimum phase links as its components. Specific examples of electromechanical system control enhancement via the control quality diagram technique application are considered with the system parameter optimization on the control quality diagram technique minimax criterion. Feasibility of 20% system Q-factor enhancement and 10% increase in the stability margin for a given Q is proved.
Кунченко, Татьяна Юрьевна. "Параметрическая оптимизация условно устойчивых электромеханических систем методом диаграмм качества управления." Thesis, НТУ "ХПИ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21350.
Full textThe dissertation for the degree of technical sciences candidate by specialty 05.09.09 – electrical complexes and systems. – NTU "KhPI". – Kharkiv, 2016. The dissertation is devoted to researching and solving parameter optimization problems for multiple-integration system astatic regulators with minimax criterion application. Parametric optimization and control efficiency enhancement methods are analyzed as applied to conditionally stable multiple-integration electromechanical systems through control quality diagram technique. Existence of the optimal solution for conditionally stable electromechanical system control on the basis of a complex control efficiency criterion – Q-factor maximum and stability margin - is theoretically substantiated. Computer-aided techniques are worked out to develop and analyze conditionally stable system control quality diagrams in time and frequency domains in which zones of enhanced Q-factor and stability margin are marked. An engineering technique is validated for control quality diagram application to optimization synthesis of systems with astatism of the 2nd and 3rd order using the control quality diagram technique criterion. Control quality diagram technique criterion based parametric optimization of different conditionally stable electromechanical systems with series and parallel compensation is performed taking into account the control object structure features, including nonminimum phase links as its components. Specific examples of electromechanical system control enhancement via the control quality diagram technique application are considered with the system parameter optimization on the control quality diagram technique minimax criterion. Feasibility of 20% system Q-factor enhancement and 10% increase in the stability margin for a given Q is proved.
Awan, Faisal Ur Rahman. "Electrokinetic investigation of coal fines in fractured and porous media." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2022. https://ro.ecu.edu.au/theses/2523.
Full textCheng, Yu-Chia, and 鄭玉佳. "The enzymatic stability enhancement by supercritical carbon dioxide pretreatment." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/73206109240644497772.
Full text國立臺灣大學
化學工程學研究所
88
Bacillus subtilis alpha-amylase (EC 3.2.1.1) losses over 80% activity at low concentrations in deionized water. This study mainly investigated the stability enhancement of alpha-amylase caused by supercritical carbon dioxide (SC-CO2) pretreatment. The alpha-amylase powder is pretreated for 1 hour in SC-CO2 at certain pressure and temperature. Moreover, the denaturation of pretreated lysozyme (EC 3.2.1.17) was also evaluated to examine the effect of the SC-CO2 pretreatment. Experimental results indicated that the stability enhancement was observed when the SC-CO2 conditions are set to 50℃ with 2000 or 2500psi and 60℃, 3000psi. The optimal SC-CO2 condition for the alpha-amylase is found to be 60℃, 3000psi and the pretreated alpha-amylase maintained the 33% activity compared the original one only 20%. Besides, the 60℃-3000psi- (SC-CO2) pretreated alpha-amylase increased 2 times in the solution stability. The results also showed that SC-CO2 pretreatment also applied to stabilize lysozyme (EC 3.2.1.17). Compared with the original lysozyme lost 60~75% activity in an hour when denatured by urea, the lysozyme pretreated by 40℃, 2500psi SC-CO2 maintained 60~80% activity after 2 hour. The result means that the stability enhancement by SC-CO2 is not specific to -amylase and other enzyme can also adapt to this method. The results of the experiment provide a novel method to improve the enzymatic stability.
Sun, San-Yung, and 孫善勇. "The Dynamic Stability Enhancement of Power System Incorporating STATCOM." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/35875516783495588832.
Full text輔仁大學
電子工程學系
89
This paper solves the problem of power system stabilization by using the advanced static VAR compensator (STATCOM) to increase the damping of the electromechanical mode of the power system. The dynamic oscillations are repressed by the proposed STATCOM controller, which is an output feedback controller designed by the strip poles assignment method. The controller is reliable and can guarantee a vertical strip that the electromechanical mode will fall into. We will study the effect of this component in single machine and multi-machine power system and design an output feedback controller for measurable signals and a decentralize controller of local machine signals, respectively. Finally we can prove that the power systems incorporating STATCOM and its controller can increase the damping of electromechanical mode and repress the low frequency oscillation effectively.
Liu, Chuan Sheng, and 劉傳聖. "Excitation system identification and power system dynamic stability enhancement." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/44995610095729487814.
Full text