电气传动
電氣傳動
전기전동
ELECTRIC DRIVE
2009年
11期
3-6,23
,共5页
测控电路%故障保护%正弦脉宽调制%功率模块
測控電路%故障保護%正絃脈寬調製%功率模塊
측공전로%고장보호%정현맥관조제%공솔모괴
monitoring and control circuits%failure to protect%SPWM%power unit
传统的方法选用CPLD作为级联高压变频器功率单元测控电路信号处理器,优点在于电路简单,信号处理与传输速度较快,但该方法也存在一定缺点,如开发指令少,不适合循环执行,应用程序功能不完善.DSPIC30F4012是一款性能优越,抗干扰能力强、指令丰富、价格较低的DSP,非常适合功率单元测控电路应用.详细论述了应用该芯片开发功率单元测控电路的技术方案与过程,最后经过运行测试证明输出电压波形正确,保护动作可靠,运行稳定,可以更好地满足功率单元测控要求.
傳統的方法選用CPLD作為級聯高壓變頻器功率單元測控電路信號處理器,優點在于電路簡單,信號處理與傳輸速度較快,但該方法也存在一定缺點,如開髮指令少,不適閤循環執行,應用程序功能不完善.DSPIC30F4012是一款性能優越,抗榦擾能力彊、指令豐富、價格較低的DSP,非常適閤功率單元測控電路應用.詳細論述瞭應用該芯片開髮功率單元測控電路的技術方案與過程,最後經過運行測試證明輸齣電壓波形正確,保護動作可靠,運行穩定,可以更好地滿足功率單元測控要求.
전통적방법선용CPLD작위급련고압변빈기공솔단원측공전로신호처리기,우점재우전로간단,신호처리여전수속도교쾌,단해방법야존재일정결점,여개발지령소,불괄합순배집행,응용정서공능불완선.DSPIC30F4012시일관성능우월,항간우능력강、지령봉부、개격교저적DSP,비상괄합공솔단원측공전로응용.상세논술료응용해심편개발공솔단원측공전로적기술방안여과정,최후경과운행측시증명수출전압파형정학,보호동작가고,운행은정,가이경호지만족공솔단원측공요구.
CPLD is signal processor of cascaded high voltage VVVF's monitoring and control circuits in traditional methods. Its advanced places lies in easy circuit realizing,signal processing speed is faster,but the methods also exist certain shortcomings, for example its instructions are less and is inappropriate in implemen-tation cycle, its application program is not perfect. However,being a kind of cost-effective and instruction rich data signal processor, DSPIC30F4012 is very suitable for monitoring and control circuits of power unit. The technology programme and development process are discussed in detail on the development of power unit moni-toring and control circuits,in the end, it is proved that power unit output voltage waveform is right and action of monitoring and control circuit protection is reliable after running through tests, so it could be better for mo-nitoring and control requirements.