混合双端直流输电系统向无源网络供电的研究

袁旭峰; 许伟杰; 欧家祥; 张秋雁

袁旭峰,许伟杰,欧家祥,张秋雁.混合双端直流输电系统向无源网络供电的研究[J].电测与仪表,2014,51(17):.
YUAN Xu-Feng,Xu Weijie,OU Jiaxiang,Zhang Qiuyang.Research on Hybrid Two-terminal HVDC Transmission SystemConnected to Passive System[J].Electrical Measurement & Instrumentation,2014,51(17):.

混合双端直流输电系统向无源网络供电的研究

Research on Hybrid Two-terminal HVDC Transmission SystemConnected to Passive System

DOI：

中文关键词: 混合双端直流输电电压源型逆变器电流源型整流器脉冲宽度调制

英文关键词:Hybrid Two-terminal HVDC Voltage Source Inverter, Current Source Rectifier, PWM

基金项目:国家自然科学基金(510670001)；贵州省科技(黔科合J字[2008]2212号)；贵州大学博士(贵大人基合字2007-019号).

作者中文名	作者英文名	单位
袁旭峰	YUAN Xu-Feng	贵州大学电气工程学院
许伟杰	Xu Weijie	贵州大学电气工程学院
欧家祥	OU Jiaxiang	贵州电力试验研究院
张秋雁	Zhang Qiuyang	贵州电力试验研究院

摘要点击次数: 1670

中文摘要:

建立了一个向无源系统供电的混合双端直流输电系统仿真模型,其整流器采用基于相控整流的常规换流器,逆变器采用交流侧带串联电容的电压源换流器,并为所建立的直流输电系统的整流器和逆变器设计了相应的控制策略,整流侧采用定直流电压控制,逆变侧采用定直流电压和定交流电压的控制。与传统的直流输电系统相比较,该混合直流输电系统可以直接向无源系统供电,无需增加外部换相电源或同步调相机。最后,对所建立的混合双端直流输电系统的特性进行了仿真分析,证实了所建立的混合双端直流输电系统模型的正确性和所提出控制方法的有效性,同时也表明这种输电系统具有许多不同于传统直流输电系统的优良运行特性。

英文摘要:

In this paper, a simulation model for a hybrid HVDC transmission system, which consists of a line-commutated current source rectifier and a voltage source inverter based on PWM control scheme, is proposed. Its control scheme is also designed, in which the rectifier maintains constant voltage (CV), and the inverter operates with constant DC voltage and constant AC voltage. Compared with the conventional HVDC transmission system, such hybrid HVDC transmission system can be connected to a passive load field. The performances of the hybrid HVDC transmission system is simulated and analyzed. The simulation results have shown that the model for hybrid HVDC transmission is correct and its control method is effective. At the same time, it is also proved that this kind of hybrid HVDC transmission system has some valuable operation performances, which is superior to the conventional HVDC transmission system.

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