摘要
准确获得电网电压的相位角,在电力电子装置设计中有重要的意义。文中研究了基于D-Q变换的三相锁相环系统原理,并深入分析了基于DSP28335对其进行实现的方法,提出一种基于DSP28335实现的全数字化三相软件锁相环,并将此锁相环应用于PWM整流器中,仿真与试验结果验证了本文设计的三相软件锁相环以及基于DSP28335工程实现方法的有效性与可行性。实际应用证明了软件锁相环的优越性,同时也突出体现了DSP28335的优良性能。
It is important to obtain phase of source voltage accurately in a design of power electronic equipments. The principles of three-phase Software Phase-Locked Loop（SPLL） based on DzQ transformation are studied deeply in this paper, and its realization method based on DSP28335 is illustrated, then a digital software three-phase PLL based on DSP28335 is proposed and applied into PWM rectifier system. Finally, simulation and ~xperiment results verify the validity and feasibility of SPLL based on DSP28335 proposed in this paper. And practical application shows the superiority performance of software PLL and DSP28335.
出处
《船电技术》
2013年第11期19-23,共5页
Marine Electric & Electronic Engineering
关键词
电力电子
锁相环
数字化
PWM整流器
power electronic
phase locked loop
digital,＂ PWM rectifier
