三相电压源整流器的低成本设计
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摘要
基于智能功率模块(IPM)或功率集成模块(PIM)的三相电压源整流器(VSR)为一种高集成的PWM整流器,但是模块成本高,支持开关频率低,导致附加成本较高。采用网压定向的矢量控制策略,设计和实现了变频空调用三相电压源整流器,包括以下几个方面内容:(1)采用6只分立逆导开关,构成三相H桥;(2)采用下三管发射极串联三只分流电阻,通过测量分流电阻压降,重构三相网流;(3)采用分压和隔离电路获得电网线电压极性,通过开环锁相得到电网电压相位。试验结果表明,上述三相整流器的整体技术合理,性能良好,成本低廉,可以作为整流器备选方案。
The three-phase voltage source rectifier( VSR) based on the intelligent power module( IPM) or power integrated module( PIM),as a highly integrated PWM rectifier,has a high cost and supports low switching frequencies,resulting in a high additional cost. A net voltage oriented vector control strategy was adopted to design and realize a three-phase voltage source rectifier for the variable frequency air-conditioner. Following steps were adopted:(1) Six discrete reverse-conducting switches were used to make up a threephase H-bridge;(2) Three shunt resistors were connected in series by means of the emitters of the three lower tubes to reconstruct the three-phase network flow through measurement of voltage drop of the shunt resistor;(3) Voltage polarity of the power grid line was obtained through the voltage division and separation circuit,and voltage phase of the grid was obtained through the open-loop lock.Experimental results indicated that the proposed three-phase rectifier was a reasonable technology,had good performance and low cost,and could serve as an alternative rectifier.
The three-phase voltage source rectifier( VSR) based on the intelligent power module( IPM) or power integrated module( PIM),as a highly integrated PWM rectifier,has a high cost and supports low switching frequencies,resulting in a high additional cost. A net voltage oriented vector control strategy was adopted to design and realize a three-phase voltage source rectifier for the variable frequency air-conditioner. Following steps were adopted:(1) Six discrete reverse-conducting switches were used to make up a threephase H-bridge;(2) Three shunt resistors were connected in series by means of the emitters of the three lower tubes to reconstruct the three-phase network flow through measurement of voltage drop of the shunt resistor;(3) Voltage polarity of the power grid line was obtained through the voltage division and separation circuit,and voltage phase of the grid was obtained through the open-loop lock.Experimental results indicated that the proposed three-phase rectifier was a reasonable technology,had good performance and low cost,and could serve as an alternative rectifier.
引文
[1] IEC61000-2-3:1992 Electromagnetic compatibility-Part 2. 3:Environment-Description of the environment-Radiated and non-network-frequency-related conducted phenomena[S].
[2] IEC 61000-3-2:2014 Electromagnetic compatibility(EMC)-Part 3-2:Limits-Limits for harmonic current emissions(equipment input current 16 A per phase)[S].
[3]张恩,廖晓钟.无电流传感器三相PWM整流器控制策略[J].电工技术学报,2004,19(11):42-45.
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[5]马鸿雁,孙凯,魏庆,等.PWM逆变器相电流重构研究与误差分析[J].电工技术学报,2011,26(1):108-114,161.
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[8]陈小波,黄文新,胡育文,等.变频器单电阻电流采样及相电流重构方法[J].电气传动,2010,40(8):3-6.
[9] DANIEL Torres,JORGE Zambada.PMSM无传感器FOC的单分流三相电流重构算法[N]. Microchip AN1299,2009:1-24.
[10]杜凡,李云辉,魏延羽,等.两种基于母线电流传感器的相电流重构方法[J].微电机,2013,46(12):55-59.
[11]叶维民,周德维.基于MOSFET内阻的电流采样及相电流重构方法[J].电子技术与软件工程,2015,8(20):137-139.
[12]曲学基,曲敬铠,于明扬.电力电子整流技术及应用[M]. 1版.北京:电子工业出版社,2008.
[13]张崇魏,张兴.电压源整流器及其控制[M]. 1版.北京:机械工业出版社,2003.
[14]王久和.电压型PWM源整流器的非线性控制[M]. 1版.北京:机械工业出版社,2008.
[2] IEC 61000-3-2:2014 Electromagnetic compatibility(EMC)-Part 3-2:Limits-Limits for harmonic current emissions(equipment input current 16 A per phase)[S].
[3]张恩,廖晓钟.无电流传感器三相PWM整流器控制策略[J].电工技术学报,2004,19(11):42-45.
[4]刘艳,邵诚.三相电压源型PWM逆变器相电流重构策略研究[J].信息与控制,2007,36(4):506-513,518.
[5]马鸿雁,孙凯,魏庆,等.PWM逆变器相电流重构研究与误差分析[J].电工技术学报,2011,26(1):108-114,161.
[6]顾义坤,倪风雷,杨大鹏,等.基于母线电流传感器的相电流重构方法[J].电机与控制学报,2009,3(6):811-816.
[7]储剑波,胡育文,黄文新,等.一种变频器相电流采样重构技术[J].电工技术学报,2010,25(1):111-117.
[8]陈小波,黄文新,胡育文,等.变频器单电阻电流采样及相电流重构方法[J].电气传动,2010,40(8):3-6.
[9] DANIEL Torres,JORGE Zambada.PMSM无传感器FOC的单分流三相电流重构算法[N]. Microchip AN1299,2009:1-24.
[10]杜凡,李云辉,魏延羽,等.两种基于母线电流传感器的相电流重构方法[J].微电机,2013,46(12):55-59.
[11]叶维民,周德维.基于MOSFET内阻的电流采样及相电流重构方法[J].电子技术与软件工程,2015,8(20):137-139.
[12]曲学基,曲敬铠,于明扬.电力电子整流技术及应用[M]. 1版.北京:电子工业出版社,2008.
[13]张崇魏,张兴.电压源整流器及其控制[M]. 1版.北京:机械工业出版社,2003.
[14]王久和.电压型PWM源整流器的非线性控制[M]. 1版.北京:机械工业出版社,2008.