相间耦合电抗器的移相机理及其应用  

Phase-shifting principle of inter-phase coupling reactor and its application

作　　者：孔宁[1] 尹忠东[1] 杨坡[1] 高洋[1] 崔若晨[1] 

机构地区：[1]华北电力大学电力系统保护与动态安全监控教育部重点实验室,北京102206

出　　处：《电力自动化设备》2011年第5期84-89,共6页Electric Power Automation Equipment

摘　　要：研究了一种具有特殊结构的相间耦合电抗器,它可以迫使其输出电流产生一定角度的相移。对相间耦合电抗器的移相机理进行了深入研究,确定了针对特定移相角的电抗器的绕组匝数,并推导出了移相电抗器的输出电压和等效输入阻抗的表达式。对相间耦合电抗器在多脉动整流系统中的应用进行了介绍,指出通过选择合适的移相角可用于构成多脉动的整流系统,以代替移相变压器,并且能够达到相同的谐波抑制效果。对相间耦合电抗器的移相机理进行了仿真验证,结果证实了理论分析的正确性。还分别对由相间耦合电抗器构成的12脉动和24脉动整流器进行了仿真和实验研究,结果表明它的确能达到与移相变压器相同的谐波抑制效果。An inter-phase coupling reactor with peculiar structure is studied,which forces its output current to shift a certain phase angle.The principle of reactor phase-shifting is analyzed,the winding turns corresponding to a certain phase-shifting angle are determined,and the expressions of the output voltage and equivalent input impedance are deduced.The application of reactor in multi-pulse rectifier system is introduced.It is pointed out that,the inter-phase coupling reactor with suitable phase-shifting angle can be used to replace the phase-shifting transformer in the multi-pulse rectifier system with same harmonic suppression effect.Simulative results verify the correctness of theoretical analysis.Simulation and experiment are also carried out respectively for 12-pulse and 24-pulse rectifiers composed of the inter-phase coupling reactor and the results show that it has the same harmonic suppression effect as the phase-shifting transformer.

关 键 词：相间耦合电抗器 移相机理 多脉动整流器 谐波抑制 仿真和实验 

分 类 号：TM46[电气工程—电器] TM47