摘要
在分析静止无功发生器(SVG)装置工作原理的基础上,采用同步旋转d,q坐标系的数学变换矩阵和低通滤波器(LPF)实现了无功、谐波电流的检测,基于无功电流与谐波电流单独控制的思想给出了直挂式SVG装置无功和谐波补偿的控制系统设计方案,并采用载波移相正弦脉宽调制(SPWM)方式产生模块单元的控制脉冲。给出了直挂式SVG装置控制系统的硬件平台设计,详细介绍了核心控制器DSP和FPGA的设计与实现。最后,在Simulink中搭建了仿真模型并通过实际的低压SVG装置测试平台对整个控制系统设计方案进行验证,结果表明:该控制方案能实现对无功、谐波的综合补偿,补偿效果好,且具有良好的动态性能。
Based on the analysis of the static var generator(SVG) working principle,the multiple synchronous rotating coordinate transformation and the low pass fdter(LPF) are used to detect the reactive power and harmonic current,at the same time the control system design scheme based on reactive current and harmonic current control individually is presented and carrier phase shifting sinusoidal pulse width modulation (SPWM) is used to generate the pulse of module units.Then,the hardware platform design of the control system and the program design and implementation of the core controller DSP and FPGA are introduced.Finally,the entire control strategy is verified by simulation and ex- periment.The result shows that this control strategy can achieve reactive power and harmonic current comprehensive compensation, and has good compensation effect and dynamic performance.
出处
《电力电子技术》
CSCD
北大核心
2016年第6期47-50,共4页
Power Electronics
关键词
静止无功发生器
无功补偿
谐波补偿
static vat generator
reactive current compensation
harmonic current compensation