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논문 기본 정보

자료유형
학술저널
저자정보
Quancai Sun (Shanghai Jiao Tong University) Haozhong Cheng (Shanghai Jiao Tong University) Jian Zhang (China Electric power Research Institute) Baiqing Li (China Electric power Research Institute) Yue Song (The University of Hong Kong)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.12 No.2
발행연도
2017.3
수록면
541 - 548 (8page)

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초록· 키워드

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An increasing concern is paid to short-term voltage stability with the growth of penetration of induction motor loads. Reactive power reserve(RPR) of power system is critical to improve voltage stability. A definition of short-term voltage stability-related RPR SVRPR) is proposed. Generators vary their contributions to voltage stability with their location and system condition, etc. Voltage support coefficient based on the second-order trace sensitivity method is proposed to evaluate SVRPR’s contribution to short-term voltage stability. The evaluation method can account for the generator’s reactive support in transient process and the contingency severity. Then an optimization model to improve short-term voltage stability is built. To deal with multiple contingencies, contingency weight taking into account both its probability and severity is proposed. The optimization problem is solved by primal dual interior point method. Testing on IEEE_39 bus system, it is indicated that the method proposed is effective. Short-term voltage stability is improved significantly by the way of SVRPR optimization. Hence, the approach can be used to prevent the happening of voltage collapse
during system’s contingency.

목차

Abstract
1. Introduction
2. Definitions and Evaluation of SVRPR
3. Optimization of SVRPR
4. Case study
5. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2017-560-002172449