대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1994년도 추계학술대회 논문집 학회본부
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- Pages.3-5
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- 1994
부하의 전압특성을 고려한 정량적 전압안정성 지표에 관한 연구
A Study on the Quantatitive Voltage Stability Index Considering Load Voltage Characteristics
- Jeong, Joon-Mo (Dept. of Electrical & Control Eng. Hong-Ik University) ;
- Lee, Bong-Yong (Dept. of Electrical & Control Eng. Hong-Ik University) ;
- Kim, Jung-Hoon (Dept. of Electronical & Electrical & Control Eng. Hong-Ik University)
- 발행 : 1994.11.18
초록
It is shown that the power flow considering the voltage characteristic of the composite load has some difference comparing with conventional load flow in this paper. When the load flow is used in a study of the static voltage stability, it is necessary to consider the voltage characteristic of load, since the composite load of a typical power system bas constant power, constant current, and constant impedance characteristic. The load is modeled to a polynomial form in here, and used in solving the load flow problem. In this way, the effect which the voltage characteristic of the load has on several voltage collapse proximity indicator based on sensitivities is compared with the conventional load flow, or with another load model having a different voltage characteristic. In this paper, the voltage collapse proximity indicator using the sensitivity of real power for transmission loss is also proposed, and compared with other indicators.
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