基于DSP与FPGA的变流器通用控制平台研究
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摘要
提出一种基于DSP和现场可编程门阵列(FPGA)双CPU结构的新型变流器控制系统方案,其中DSP完成变流器控制策略的实现,主要包括:最大功率点跟踪、电压电流双闭环控制、低电压穿越控制、通信功能;FPGA完成三相锁相环控制、AD芯片采样控制、SVPWM波形控制、逻辑输出控制以及各类故障信号检测与停机保护功能,并采用了基于WIFI模块的风电故障信息传输系统。以双馈风电变流器为模型,设计了双馈风力发电变流器系统,完成了两电平与三电平SVPWM控制算法的FPGA实现。最后在自主研发的1.5 MW,2 MW双馈式变流器样机与光伏逆变器样机上进行了大量实验和长期的现场试运行,验证了控制系统平台的可行性与实用性。
With a novel wind- power converter control system was proposed based on dual- CPU architectural linked with DSP and FPGA,the DSP can achieve main control strategies:maximum-point tracking,closed-looped voltage and current control,low voltage ride through(LVRT)control and communication;the FPGA can realize:threephase PLL control,AD converter control,SVPWM control,logic-output control,variable faulted signal detecting and emergency stop protection,besides,it is implemented with the wind-power faulted signal communication system based on WIFI system. With respect of doubly- fed induction generator(DFIG),DFIG converter system was designed, completed both two- level and three- level SVPWM control algorithm realization on FPGA. Ultimately,this control system is suited on self-produced 1.5 MW and 2 MW DFIG converter also the photovoltaic power converter along with variable experiment and long-term site operation,which demonstrates its reliability and practicability.
With a novel wind- power converter control system was proposed based on dual- CPU architectural linked with DSP and FPGA,the DSP can achieve main control strategies:maximum-point tracking,closed-looped voltage and current control,low voltage ride through(LVRT)control and communication;the FPGA can realize:threephase PLL control,AD converter control,SVPWM control,logic-output control,variable faulted signal detecting and emergency stop protection,besides,it is implemented with the wind-power faulted signal communication system based on WIFI system. With respect of doubly- fed induction generator(DFIG),DFIG converter system was designed, completed both two- level and three- level SVPWM control algorithm realization on FPGA. Ultimately,this control system is suited on self-produced 1.5 MW and 2 MW DFIG converter also the photovoltaic power converter along with variable experiment and long-term site operation,which demonstrates its reliability and practicability.
引文
[1]何向涛,胡书举,赵斌.风电系统中几种电网电压跌落检测方法的比较研究[J].电气传动,2010,40(7):12-17.
[2]郭伟峰,杨世彦,杨威.基于FPGA-DSP全数字控制的并联有源电力滤波器[J].电工技术学报,2007,22(5):38-44.
[3]南京国电南自风电自动化技术有限公司.一种带WIFI模块的风电故障信息传输系统:中国,实用新型,CN201220621867.5[P].2013.
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[9]戴鹏,李俊杰,朱洪顺.基于DSP与FPGA的5电平逆变器研究[J].电气传动,2012,42(10):29-33.
[2]郭伟峰,杨世彦,杨威.基于FPGA-DSP全数字控制的并联有源电力滤波器[J].电工技术学报,2007,22(5):38-44.
[3]南京国电南自风电自动化技术有限公司.一种带WIFI模块的风电故障信息传输系统:中国,实用新型,CN201220621867.5[P].2013.
[4]王鑫,王俊林.基于FPGA的风电机组输入输出控制器[J].太阳能,2012,(19):27-31.
[5]张厚升,赵艳雷.基于矢量解耦控制的风电并网逆变器研究[J].电气传动,2010,40(9):28-32.
[6]骆皓,林明耀,胡炫.基于开关频率函数的双馈发电机转子励磁I-PI双电流环参数整定[J].电力自动化设备,2010,30(4):59-62.
[7]刘其辉.变速恒频风力发电系统运行与控制研究[D].杭州:浙江大学,2005.
[8]南京国电南自风电自动化技术有限公司.基于DSP与FPGA的三电平逆变器控制系统:中国.实用新型,CN201220622155.5[P].2013.
[9]戴鹏,李俊杰,朱洪顺.基于DSP与FPGA的5电平逆变器研究[J].电气传动,2012,42(10):29-33.