A practical method of transient stability analysis of stochastic power systems based on EEAC

作者：Huang, Tong^*; Wang, Jie^*

来源：International Journal of Electrical Power & Energy Systems, 2019, 107: 167-176.

DOI：10.1016/j.ijepes.2018.11.011

• EQUAL-AREA CRITERION
• NUMERICAL-SIMULATION

With the diversification of power systems and the application of power electronic technology, the uncertainty of power systems is becoming more and more serious, and the traditional deterministic transient stability analysis methods encounter severe challenges. In this paper, a practical method is proposed for transient stability analysis of stochastic multi-machine systems based on EEAC. Firstly, the stochastic differential equation model of multi-machine systems is established. Secondly, the stochastic multi-machine system is equivalent to a stochastic single-machine infinite bus system according to coherency. Finally, the acceleration and deceleration area is constructed, and Heun's method is used to seek the critical clearing time of the system. The method is applied to analyse transient stability of four machine system. Compared with the numerical simulation based on Monte Carlo method, the simplicity and effectiveness of the method are verified. The impact of stochastic disturbance intensity on stability is also presented.

• 出版日期2019-5
• 单位上海交通大学