Powerformer电压控制改善系统的角度稳定性  

Improvement of system angle stability by Powerformer voltage control

作　　者：高艳[1] 林湘宁[1] 刘沛[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《电力自动化设备》2010年第6期50-54,共5页Electric Power Automation Equipment

摘　　要：对于利用高压电缆绕制定子绕组的新型发电机——Powerformer,它能与高压母线直联,无需增设常规发电机高压侧电压控制(HSVC)模块就能调节高压侧电压。提出采用Powerformer实现高压侧电压控制,可方便地控制高压侧母线电压。应用电力系统综合分析程序PSASP对单机无穷大系统及ERPI-7节点系统进行了三相接地短路及两相接地短路情况的仿真,仿真证明了Powerformer电压控制改善了系统的角度稳定性,优于常规发电机带自动电压调节器(AVR)励磁控制。As Powerformer,a novel type of high voltage generator with its stator windings made of high voltage cables,connects directly to high voltage bus,it is proposed to apply it to HSVC（High Side Voltage Control）.The 3-phase grounding fault and 2-phase grounding fault are simulated with PSASP（Power System Analysis Software Package） for one-machine infinite-bus system and EPRI-7 system,which shows that,the Powerformer voltage control improves the system angle stability,better than the excitation control of conventional generator with AVR.

关 键 词：角度稳定性 高压侧电压控制 自动电压调节 PSASP 

分 类 号：TM76[电气工程—电力系统及自动化]