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Статті в журналах з теми "Voltage stability limit"
Anichebe, I. B., and A. O. Ekwue. "Improvement of bus voltage profiles of Nigerian power network in the presence of Static Synchronous Compensator (STATCOM) and Doubly Fed Induction Generator (DFIG)." Nigerian Journal of Technology 39, no. 1 (April 3, 2020): 228–37. http://dx.doi.org/10.4314/njt.v39i1.26.
Повний текст джерелаSundaravazhuthi*, V., Dr A. Alli Rani, and M. Manoj Kumar. "Raise Voltage Stability Limit of a Power System using Reactive Power Compensation Technique." International Journal of Innovative Technology and Exploring Engineering 8, no. 12 (October 30, 2019): 2931–34. http://dx.doi.org/10.35940/ijitee.k1752.1081219.
Повний текст джерелаToyoda, Junichi, Be-fei Fang, and Hiroumi Saitoh. "Bifurcation of Voltage Stability Limit in Direct Computational Approach." IEEJ Transactions on Power and Energy 115, no. 6 (1995): 576–81. http://dx.doi.org/10.1541/ieejpes1990.115.6_576.
Повний текст джерелаObadina, O. O., and G. J. Berg. "Determination of voltage stability limit in multimachine power systems." IEEE Transactions on Power Systems 3, no. 4 (1988): 1545–54. http://dx.doi.org/10.1109/59.192964.
Повний текст джерелаLiu, Bing, Ying Wang, Zhen Yang, Yun Wei Li, Hua Zhi Xie, Yan Zhang, Wen Chao Zhang, Xiang Yang Deng, and Cheng Ming He. "Evaluation Method of Voltage Stability Based on Minimum Singular Value." Applied Mechanics and Materials 511-512 (February 2014): 1128–32. http://dx.doi.org/10.4028/www.scientific.net/amm.511-512.1128.
Повний текст джерелаSaeed, Wafaa, and Layth Tawfeeq. "Voltage Collapse Optimization for the Iraqi Extra High Voltage 400 kV Grid based on Particle Swarm Optimization." Iraqi Journal for Electrical and Electronic Engineering 13, no. 1 (June 1, 2017): 17–31. http://dx.doi.org/10.37917/ijeee.13.1.3.
Повний текст джерелаKumar, Praveen. "Alternative Criteria of Voltage Stability Margin for the Purpose of Load Shedding." International Journal for Research in Applied Science and Engineering Technology 9, no. 10 (October 31, 2021): 201–6. http://dx.doi.org/10.22214/ijraset.2021.38194.
Повний текст джерелаEzeruigbo, E. N., A. O. Ekwue, and L. U. Anih. "Voltage Stability Analysis of Nigerian 330kV Power Grid using Static P-V Plots." Nigerian Journal of Technology 40, no. 1 (March 23, 2021): 70–80. http://dx.doi.org/10.4314/njt.v40i1.11.
Повний текст джерелаXing, Da Peng, Jia Li, and Da Qiang Qiu. "A New Estimation Method of Transient Voltage Stability Limit Clearing Time." Advanced Materials Research 971-973 (June 2014): 1051–54. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.1051.
Повний текст джерелаWondie, Tebeje Tesfaw, and Teshome Goa Tella. "Voltage Stability Assessments and Their Improvement Using Optimal Placed Static Synchronous Compensator (STATCOM)." Journal of Electrical and Computer Engineering 2022 (August 23, 2022): 1–12. http://dx.doi.org/10.1155/2022/2071454.
Повний текст джерелаДисертації з теми "Voltage stability limit"
Zhu, Pengcheng. "A novel Q-limit guided continuation power flow method for voltage stability analysis." Thesis, Brunel University, 2008. http://bura.brunel.ac.uk/handle/2438/5360.
Повний текст джерелаAbrantes, Adriano Lima. "Bifurcações induzidas por limites no contexto de estabilidade de tensão." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-31082016-113911/.
Повний текст джерелаThe interconnection of electric power systems (EPSs) led to an increase in security assessment complexity. Besides, due to economical and environmental inuences, EPSs have been operating closer to their transmission limits, which raises the relevance of security assessment in the context of voltage stability. In this scenario, problems related to EPS power transmission capacity, such as the limit induced bifurcation (LIB), become more important and bring the need of appropriate analysis tools. One of the goals of this project is to study the LIB problem more deeply, so it can be better understood in the context of voltage stability. Another objective is the development of methods for evaluating the load margin (LM) considering the possible occurrence of LIBs. Finally, since the LM sensitivity analysis due to saddle-node bifurcation (SNB) plays a highly important role in voltage stability studies, developing a method for LM sensitivity analysis due to LIB is our third objective. The sensitivity analysis is important not only because it provides information on the instability phenomenon and its mechanisms, but it is also useful for EPS security assessment, since it may provide knowledge on which control actions will be more eective in increasing the LM and which contingencies may be more severe. However, this analysis has been performed only for the case in which the LM is determined by a SNB point, not for the LIB case. With the intention of enabling pre-existing preventive control selection tools to treat the LIB phenomenon, a sensitivity analysis was performed at the LIB point similarly to what was developed for the SNB. Another contribution of this work is a smoothing formulation for complementary limits that was applied to the problem of limited reactive power injection of generating units. The proposed formulation transforms, at least numerically, the LIB in a SNB, which may be detected through methods already established in literature.
Tamimi, Ala. "Voltage stability limits for weak power systems with high wind penetration." Diss., Kansas State University, 2011. http://hdl.handle.net/2097/13100.
Повний текст джерелаDepartment of Electrical and Computer Engineering
Anil Pahwa
Shelli K. Starrett
Analysis of power system voltage stability has practical value in increasing wind penetration levels. As wind penetration levels increase in power systems, voltage stability challenges arise due to locating wind resources far away from load centers. This dissertation presents several different voltage stability methods for sizing new wind farms. Power system wind penetration levels depend on the available voltage stability margins (VSMs) of the existing power system and system load characteristics. Three new iterative methods have been developed to maximize wind penetration level in weak power systems based on systems’ VSMs. The first two methods use an iterative approach for increasing the size of each wind farm until reaching the collapse point. Wind farms with less negative impact on system VSMs are sized larger than others. A third wind farm sizing method has been developed using modal analysis in conjunction with the traditional voltage stability method (Q-V method). Wind farms are placed at buses in the power system which have the lowest negative impact on voltage instability modes (strong wind injection buses). By placing the wind farms at the strongest wind injection buses, higher amounts of wind power can be injected into the power system. To further increase wind penetration in weak power systems, two additional techniques are introduced and applied to the western Kansas power system. The first technique uses modes of voltage instability to place voltage support equipment like static var compensators at locations in the power system where they provide the needed reactive power support for increasing levels of wind penetration. The second technique uses the fact that wind patterns at a wind farm site may rarely allow the wind farm to produce its maximum capacity during the peak loading hours. Wind farm maximum sizes can be increased above their maximum voltage stable size limit without driving the power system into becoming voltage unstable. Preventing voltage collapse for the additional increases in wind farm sizes is accomplished by disconnecting some wind turbines inside the wind farm during critical times to reduce its power output to a voltage stable level.
Wang, Wei-Ming, and 王瑋民. "Analysis of Voltage Stability Limit for Radial Distribution Systems." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/68754059370236313483.
Повний текст джерела國立成功大學
電機工程研究所
84
In this dissertation, the steady-state small dis -turbance voltage stability limit for a radial distribution system is thoroughly analyzed. The solutions for radial distribution systems. By this method, an equivalent 2-bus network can be obtained during the solving process. Based on the 2-bus network, the steady-state load limit and voltage stability limit are investigated. The circle diagrams and Jacobian determinant are developed first to derive the load limit and voltage stability limit for radial distribution systems. For the purpose of checking the limits equations derived by the authors, the well-known L stability indicator is adopted for the task of justification. The consistency among these methods is shown. It is shown that the positive Jacobian determinant corresponds to an L indicator less than 1 which meets the voltage stability criterion. To show the effects of load models on the voltage stability limit, a composite load model composed of a part of constant power load, a part of constant impedance load and a part of constant current load is adopted to derive the general equation of voltage stability limit. It is found that the voltage stability problems are mostly caused by the constant power load. In the literature, almost all the tasks of proving the uniqueness of a voltage solution for a radial distribution system are based on a 2-bus system. In this dissertation, the authors derive a general equation of the [dV/dP] of load bus, and by checking the sign of [dV/dP] of each load bus, the uniqueness of a voltage solution can be shown. The method of proof developed is more general than those methods published.
Shieh, Jeng-Cheng, and 謝正誠. "The Study and Improvement of Voltage Stability with the Limit of Power Transmission." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/38340033520241485104.
Повний текст джерела國立臺北科技大學
機電整合研究所
87
Taiwan power system in the peak-load period has a large amount of power flow through 345kV-transmission lines from the central and southern areas to northern area. In this time, if one of these lines is tripped, the voltage stability of the power system would be affected. Hence, how to prevent voltage collapse and compensate the reactive power of a power system become very important. In the past, most of researches in the field of voltage stability used uniform rate to deal with the system load increase. In this paper, we analyze the power system stability, focusing on the limit of transmission line power flow between two areas. This paper uses PSS/E, IPLAN and OPF analysis package to develop a helpful method to generate P-V curves for Taiwan power system voltage stability analysis. Using these P-V curves, it is easy to identify the saddle-node bifurcation point and to determine the weak bus index and real power transmission limit from the central area to northern area. Besides, in normal operating condition, some line outage cases with 345kV-interface line from central area to northern area and some generator outage cases of the voltage stability of Taiwan power system were studied. Finally, the optimal compensation of the parallel capacitors and series capacitors to improve the voltage stability of the system were proposed in this paper.
Jeng, Jyh-Cheng, and 鄭至成. "Analysis of Steady-State Voltage Stability Limit of Radial Distribution Systems Considering Load Characteristics." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/92724972776797425270.
Повний текст джерела國立成功大學
電機工程研究所
83
Analysis of voltage stability limit is an important topic in the study of a distribution system. In this thesis, the effects of different types of static loads is investigated on the steady-state voltage stability limit for a radial distribution system. The loads adopted in the investigation include constant power loads, constant impedance loads and constant current loads. Furthermore, the uniqueness and existence of the voltage solution are discussed. In solving the load flow problems of the radial power network, the DistFlow technique has been proposed as the most suitable method. In this method, an equivalent two-bus network will be obtained simultaneously. Based on that, the analysis in this thesis is mainly concentrated on the two-bus system. The detailed simulated results are presented to justify the opinions proposed.The result reveal that when a larger part of constant current or constant impedance load is added to the total load, the voltage stability limit will move far into the lower branch of the P-V curve and multiple load flow solutions may exist.
Sarnari, Alberto Jose. "Numerically Robust Load Flow Techniques in Power System Planning." Thesis, 2019. http://hdl.handle.net/2440/119928.
Повний текст джерелаThesis (Ph.D.) -- University of Adelaide, School of Electrical and Electronic Engineering, 2019
Avalos, Munoz Jose Rafael. "Analysis and Application of Optimization Techniques to Power System Security and Electricity Markets." Thesis, 2008. http://hdl.handle.net/10012/3692.
Повний текст джерелаLe, Ha Thu. "Increasing wind power penetration and voltage stability limits using energy storage systems." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-05-864.
Повний текст джерелаtext
Lu, Liming. "Immediate change in stability and voltage collapse when power system limits are encountered." 1991. http://catalog.hathitrust.org/api/volumes/oclc/24350837.html.
Повний текст джерелаTypescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 34-37).
Частини книг з теми "Voltage stability limit"
Behera, Santi, and Manish Tripathy. "Optimal Reactive Power Compensation for Improvement of Steady State Voltage Stability Limit under Stressed System Condition Using BF Algorithm." In Swarm, Evolutionary, and Memetic Computing, 388–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-35380-2_46.
Повний текст джерела"Degradation of NanoDielectrics." In Design and Investment of High Voltage NanoDielectrics, 323–60. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-3829-6.ch010.
Повний текст джерелаWang, Wei, Haiyun Wang, Qian Chen, Huayue Wei, and Jianfang Zhang. "AVC Fine Control Rules of Urban Power Grid Based on Improved Deep Probabilistic Neural Network." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde221212.
Повний текст джерелаRawat, Mahiraj Singh, and Shelly Vadhera. "Voltage Stability Assessment Techniques for Modern Power Systems." In Advances in Environmental Engineering and Green Technologies, 128–76. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-8551-0.ch006.
Повний текст джерелаJabari, Farkhondeh, Heresh Seyedia, Sajad Najafi Ravadanegh, and Behnam Mohammadi Ivatloo. "Stochastic Contingency Analysis Based on Voltage Stability Assessment in Islanded Power System Considering Load Uncertainty Using MCS and k-PEM." In Advances in Computer and Electrical Engineering, 12–36. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9911-3.ch002.
Повний текст джерелаMade Wartana, I., and Ni Putu Agustini. "Optimal Integration of Series and Shunt FACTS with Wind Energy for Active Power Loss Reduction." In Renewable Energy - Recent Advances [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.107296.
Повний текст джерелаТези доповідей конференцій з теми "Voltage stability limit"
Li Peng, Yuan Yubo, and Wang Yuting. "On-line voltage stability assessment strategy considering limit of voltage source." In TENCON 2015 - 2015 IEEE Region 10 Conference. IEEE, 2015. http://dx.doi.org/10.1109/tencon.2015.7372873.
Повний текст джерелаDuan, Jundong, and Shanshan Zhu. "The Effect of OLTC on Static Voltage Stability Limit." In 2011 Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, 2011. http://dx.doi.org/10.1109/appeec.2011.5749167.
Повний текст джерелаRamalingam, K., and C. S. Indulkar. "Determination of Steady State Voltage Stability limit using PQ curves for voltage sensitive loads." In 2008 Joint International Conference on Power System Technology and IEEE Power India Conference (POWERCON). IEEE, 2008. http://dx.doi.org/10.1109/icpst.2008.4745152.
Повний текст джерелаShixiong, Fan, Han Wei, Li Lixin, Wang Wei, Zhang Peng, Fu Jiayu, Hu Yiping, and Xu Guorui. "Influence of synchronous condenser exciter limit on voltage stability of HVDC." In 2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA). IEEE, 2018. http://dx.doi.org/10.1109/iciea.2018.8397716.
Повний текст джерелаZhao, X. Y., and X. B. Zhang. "Smoothness of voltage stability surface with generator reactive power limit encountered." In 2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies. IEEE, 2008. http://dx.doi.org/10.1109/drpt.2008.4523479.
Повний текст джерелаDan, Yao, and Zhong Hao. "A fast method of voltage stability margin load for limit induced bifurcation." In 2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, 2013. http://dx.doi.org/10.1109/appeec.2013.6837316.
Повний текст джерелаSarnari, Alberto Jose, and Rastko Zivanovic. "Reliable steady state voltage stability limit estimation using Newton-Raphson-based method." In 2017 Australasian Universities Power Engineering Conference (AUPEC). IEEE, 2017. http://dx.doi.org/10.1109/aupec.2017.8282450.
Повний текст джерелаHao Wu and C. W. Yu. "An algorithm for point of collapse method to compute voltage stability limit." In 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings. IEEE, 2004. http://dx.doi.org/10.1109/drpt.2004.1338476.
Повний текст джерелаYu, Xiaodan, Shucun Cao, Hongjie Jia, and Pei Zhang. "Impact of the Exciter Voltage Limit to Power System Small Signal Stability Region." In 2007 IEEE Power Engineering Society General Meeting. IEEE, 2007. http://dx.doi.org/10.1109/pes.2007.385694.
Повний текст джерелаLan, Zhou, Xiaofei Wang, Mingjiu Pan, Kai Yang, Yuntian Lou, and Ke Sun. "Research on Voltage Stability and Control of DFIG Based on Power Limit Trajectory." In 2022 IEEE 5th International Electrical and Energy Conference (CIEEC). IEEE, 2022. http://dx.doi.org/10.1109/cieec54735.2022.9846705.
Повний текст джерела