摘要
比较了静止同步补偿器(STATCOM)的两种控制方式的优缺点,设计了一种基于空间矢量脉宽调制(SVPWM)方法的控制系统。该方法运用瞬时无功理论,通过锁相环和低通滤波器检测负载电流中无功电流的大小,利用d-q坐标变换实现有功电流和无功电流的解耦控制。仿真结果表明补偿后电流幅值明显减小,直流侧电压平稳,功率因数提高到0.95以上。
The advantages and disadvantages of the two kinds of control mode of static synchronous compensator （STATCOM） were compared with and a SVPWM-based （Space Vector Pulse Width Modulation） control system was designed. Based on the instantaneous reactive power theory, the phase-locked loop and low pass filter were used to test the load＇s reactive current and the d-q coordination transform was used to realize the decoupled control of STATCOM active and reactive currents. Simulation results show that the current amplitude is distinctly reduced and the DC side voltage is stable, besides the power factor is improved up to 0.95.
出处
《电工电气》
2010年第1期10-12,共3页
Electrotechnics Electric
关键词
静止同步补偿器
无功补偿
空间矢量脉宽调制
static synchronous compensator
reactive power compensation
space vector pulse width modulation
