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Designing of PI controller of thyristor controlled interphase power controller for improving transient stability of power system

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4 Author(s)
Juan Li ; Sch. of Electr. Eng., Northeast Dianli Univ., Jilin, China ; Naixin Yan ; Ying Yue ; Hanxu You

Based on basic structure and power flow control theory of Thyristor Controlled Interphase Power Controller (TCIPC), mathematical model coordinates of relationship between the branch current of TCIPC, port voltage and controlled transmission power in the dq0 is established. According to power-angle characteristic of TCIPC, regulating the inductive branch parameters of IPC will improve transient stability is explained. Based on the relationship between inductance parameters and tie-line transmission power, the current is selected as the synchronic signal to shut thyristor and the expected value of inductance desired is selected as reference signal, then PI fixed impedance controller of triggering angle correction is designed. Set up simulation of a simple system model with IPC. Simulation results verify the effectiveness of the controller and show controlling the inductive parameters of TCIPC can improve the transient stability of the power system with TCIPC.

Published in:

Electrical and Control Engineering (ICECE), 2011 International Conference on

Date of Conference:

16-18 Sept. 2011