基于线性-定弧长混合校正的连续追踪暂态仿真算法

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Abstract The continuous parameterization-based tracing method has been used for power system continuation power flow. It is further developed into transient stability simulation, called continuous parameterization-based trajectory tracing (CPTT) method. The numerical integration problem caused by algebraic singularity can be avoided by CPTT method. However, tangential prediction of CPTT method might fail to solve when fault occurs or disappears, which could lead to numerical instability of linearity correction. In this paper, a novel CPTT method was presented by using linearity-arc length hybrid correction technology. Prediction problem can be then solved. Furthermore, the numerical instability of linearity correction can be solved by selecting reasonable continuous parameters. Finally, the problem of simulation trajectory distortion can be solved. The test results show that the new method is equivalent to classical implicit integration method in accuracy, and better than classical parameter-switching tracing method in computing speed, and has good prospect of engineering application.

Key words： Power system continuous parameters parameter-switching tracing arc fixed length corrector continuous parameter selecting

Received: 16 November 2015 Published: 26 May 2017

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TM712

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	Wang Dan
	Jia Hongjie
	Wang Weiliang
	Chen Zhaoyu
	Yu Xiaodan

Cite this article:

Wang Dan,Jia Hongjie,Wang Weiliang等. A Transient Stability Simulation of Continuous Trajectory Tracing Based on Linearity-Arc Length Hybrid Correction Technology[J]. Transactions of China Electrotechnical Society, 2017, 32(10): 264-272.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I10/264

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