APPLICATION OFA NOVEL OPTIMAL COORDINATED CONTROL TO HVDC LIGHT
HU Zhao-qing, MAO Cheng-xiong, LU Ji-ming (College of Electrical & Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, China)
HVDC Light is a new HVDC transmission system, based on Voltage Source Converters (VSC) and Pulse Width Modulation (PWM). The mathematical model of HVDC Light is established, an optimal coordinated control between the generator excitation and HVDC Light is proposed. The proposed controller is used to improve transient stability of the power system and to damp prolonged oscillation after a fault is cleared. Then the optimal coordinated control algorithm is applied to multi-machine power system with HVDC Light. The comparison is made between the proposed controller and independent controller for generator excitation and HVDC Light, the simulation results demonstrate that the proposed control strategy provides better damping characteristics.
【CateGory Index】： TM721