基于DSP的高压动态无功补偿控制器设计  

Design of DSP-based controller for high-voltage dynamic reactive power compensation

作　　者：张立[1] 丘东元[1] 张波[1] 

机构地区：[1]华南理工大学电力学院,广东广州510640

出　　处：《电力自动化设备》2010年第3期121-125,共5页Electric Power Automation Equipment

基　　金：国家科技支撑计划(2008BAF34B09);国家863高技术基金项目(2007AA05Z200);国家自然科学基金项目(50877028);广东省自然科学基金重点项目(8251064101000014);广东省自然科学基金项目(07006515)~~

摘　　要：利用低压动态无功补偿系统以及电磁耦合系统,可以实现10kV的高压动态无功补偿。根据高压动态无功补偿系统的需要,研制了一个具有电网三相共补和三相分补功能的控制器。该控制器利用DSP芯片的捕获单元和AD模数转换单元分别完成电网频率测量和电网信号采样,使用均方根算法和快速傅里叶算法(FFT)实现对采样数据的实时快速处理计算;采用混合编码方式对共补电容容量进行了精确配置,对电网的三相共补电容和分补电容实现了投切控制。实际运行结果表明,该控制器稳定可靠,补偿效果好。10 kV high-voltage dynamic reactive power compensation could be implemented with low-voltage dynamic reactive power compensation system and electromagnetic coupling system. A controller for both three-phase compensation and phase-splitting compensation is developed according to the requirements of high-voltage reactive power compensation system. It applies the capture unit and ADC unit of DSP to sample the grid frequency and signals respectively, and quickly processes the sampled data with RMS algorithm and FFT algorithm in real-time. The mixed coding mode is adopted to precisely distribute the three-phase compensation capacity and the switching of three-phase compensation capacitors and phase -splitting compensation capacitors are controlled. The experimental results show that the controller is stable and reliable, with excellent compensation effect.

关 键 词：数字信号处理器 高压 无功补偿 共补 分补 

分 类 号：TM761[电气工程—电力系统及自动化]