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		Zhizhong MAO.[en_title][J].Control Theory and Technology,2009,7(1):81~.[Copy]

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ZhizhongMAO
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Received:March 16, 2006Revised:March 12, 2008

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A new modeling and control scheme for thyristor-controlled series capacitor

Zhizhong MAO

(School of Information Science and Engineering, Northeastern University, Shenyang Liaoning 110004, China)

Abstract:

In order to design an optimal controller for the thyristor controlled series capacitor (TCSC), a novel TCSC control model is developed. In the model, the delay angle of thyristor valves is the input, and the inductor current is chosen as the output. Theoretical analysis and simulation studies show that TCSC is a non-linear system and its parameters vary with the operating point. In consideration of the special characteristics of the TCSC, an improved model algorithmic control (IMAC) scheme is proposed to control TCSC effectively. The good performance can be observed from simulation results when IMAC is applied to a series compensated radial system.

Key words: TCSC Modeling Predictive control Simulation