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有功功率无功功率独立控制的VSC-HVDC系统仿真研究 被引量:9

Simulation and Analysis for VSC-HVDC Independently Controlling Active Power and Reactive Power
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摘要 高压直流输电系统中有功和无功功率可以分别由dq0坐标系下的d轴电流分量和q轴电流分量独立控制,设计定直流电压、定有功功率定无功功率控制器。整流侧实现单位功率因数整流并控制直流电压的稳定,逆变侧通过改变有功电流指令和无功电流指令来改变输送的有功功率和无功功率。用Matlab进行仿真分析。结果表明,该控制方式在保证直流电压稳定的基础上能够实现有功功率、无功功率的独立控制,且该控制方式灵活、简便,抗干扰性强,为工程实际应用提供理论依据。 The VSC-HVDC was studied in d-q synchronous reference frame that active and reactive power could be controlled by d axis current and q axis current separately. And according this fixed DC voltage, fixed active power and fixed reactive power controllers were designed. The receiving station controlled specific power factor and DC voltage stably. The supplying station varied active power and active power by changing the active current order and reactive current order. The Matlab simulation results showed that active power and reactive power could be controlled separately in the controlling method, and the controlling method was flexible, simple, strong antiinterference. This conclusion provided the theory basis for practical application.
出处 《电力科学与工程》 2008年第4期9-12,15,共5页 Electric Power Science and Engineering
关键词 高压直流输电 电压源换流器 功率 控制 HVDC voltage source converter power control
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