摘要
D—STATCOM是一种新型的用于配电网的动态无功补偿装置。文中介绍的± 1 0 0 kvarD— STATCOM采用 IGBT三电平逆变器实现 ,启动采用直接并网方式 ,脉冲调制采用特定谐波消除脉宽调制 (SHEPWM)技术以消除逆变器输出电压的特定次数谐波 ,控制器和脉冲发生器分别采用 TMS3 2 0 C3 X数字信号处理器实现。试验表明 ,该装置具有快速、连续地调节无功的能力和输出电流谐波含量低等优越性能。
D- STATCOM is a new reactive power device aiming at dynam ic reactive power compensation in the distribution network. The± 10 0 kvar D- STATCOM illustrated in this paper em ploys an IGBT tri- level inverter and start- ups directly from the line. In order to eliminate the given harm onics in the outputline- line voltage of the inverter,the selective harmonic elim ination PWM SHEPWM method is adopted in pulse m odulations. The controller and the pulse generator are im plem ented with two TMS32 0 C3X DSP chips respectively. Tests given in the paper verified that D- STATCOM has advantages such as fast,continuous reactive power output ability and low harm onic distortion in the output current.
出处
《电力系统自动化》
EI
CSCD
北大核心
2002年第1期70-73,77,共5页
Automation of Electric Power Systems
