Application of digital phase-locked loop and filtering technique in PWM rectifier |
| |
作者姓名: | FU Zhi-hong DONG Yu-xi ZHU Xue-gui WANG Wan-bao and ZHANG Peng |
| |
作者单位: | State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044, P.R.China;State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044, P.R.China;State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044, P.R.China;State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044, P.R.China;State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044, P.R.China |
| |
摘 要: | VHS-ADC high speed digital signal processing platform based on MATLAB and FPGA could be used to build three-phase voltage source rectifier with space voltage vector PWM(SVPWM).The initial phase of coordinate transformation from three phase static coordinate to two phase static coordinate which is called Park transformation and from two phase rotating reference frame to two phase static coordinate is uncertain. There existed noise in acquiring grid voltage and current. Digital phase-locked loop is added to follow the frequency and phase of grid voltage, FIR filter is added to process signal and reduce the interference. External voltage control loop, internal current control loop and the model of coordinate transformation are designed on the VHS-ADC platform. The small power experiment is conducted to verify the stability and feasibility of the control system. The experimental results show that the digital phase-locked loop and FIR digital filter can be applied to three-phase voltage source rectifier.
|
关 键 词: | rectifiers VHS-ADC platform FIR filters digital phase-locked loop |
收稿时间: | 2010-02-18 |
|
| 点击此处可从《保鲜与加工》浏览原始摘要信息 |
|
点击此处可从《保鲜与加工》下载全文 |