单极性移相控制电压源高频交流环节AC/AC变换器研究
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摘要
本文首次提出并深入研究了以正激Forward变换器为基础的单极性移相控制电压源高频交流环节AC／AC变换器。已申请中国发明专利权(ZLO1 1 27184．1)。这类变换器由输入周波变换器、高频变压器、输出周波变换器、以及输入、输出滤波器构成，包括全桥全波式、全桥桥式两种电路，前者适用于低压输出变换场合，后者适用于高压输出变换场合。输入周波变换器将输入不稳定劣质的工频正弦交流电压调制成双极性三态的高频交流电压波，输出周波变换器将此高频交流电压波解调成单极性三态SPWM波，经输出滤波后得到稳定优质的工频正弦交流电压。通过输入周波变换器右桥臂相对左桥臂的移相，让输出周波变换器功率开关在输入周波变换器输出的高频交流电压为零期间进行换流，并借助输出周波变换器换流重叠和输入电压极性选择，从而实现了变压器漏感能量和输出滤波电感电流的自然换流、输出周波变换器的ZVS开关，解决了输出周波变换器固有的电压过冲和环流问题。详细分析了这类变换器在一个高频开关周期内的十二个工作模式及其等效电路。采用状态空间平均法建立了变换器平均模型，获得了输出电压、滤波电感电流、共同导通时间、单极性SPWM波占空比等关键电路参数的设计准则和变换器的外特性曲线。这类变换器具有高频电气隔离、电路拓扑简洁、两级功率变换(LFAC／HFAC／LFAC)、功率密度高、双向功率流、输出周波变换器实现了ZVS换流、单极性SPWM波、无音频噪音等优点。
220V±10％(50Hz)／220V(50Hz)单极性移相控制电压源高频交流环节AC／AC变换器的仿真与原理试验证实了这类变换器新概念的正确性与先进性。为新一代正弦交流稳压器、电子变压器、交流调压器的实现奠定了关键技术基础。
Abstract:The uni-polarity phase-shifted controlled voltage mode AC/AC converters with high frequency ac link based on Forward converters are firstly proposed and deeply investigated.This kind of converters is constituted of input cycloconveter,high frequency transformer,output cycloconverter,input and output filters. It includes full bridge-full wave mode and full bridge-full bridge mode topologies,the former is suit for low output voltage field and the later is suit for high output voltage field. The unsteady input commercial frequency sinusoidal voltage with high harmonic is modulated into bi-polarity three-state high frequency ac volage by the input cycloconverter,bi-polarity three-state high frequency ac volage is demodulated into uni-polarity three-state SPWM wave by the output cycloconverter,and the uni-polarity three-state SPWM wave is filter into steady commercial frequency sinusoidal voltage with low harmonic. By using phase shifting control between right bridge leg and left bridge leg,the output cy
cloconverter commutating while the bi-polarity three-state high frequency ac volage from the input cycloconveter is zero,.and commutation overlap of the output cycloconverter and polarity selection of the input voltage,the leakage inductance energy and the output filtering inductance current are naturally commutated,and ZVS switching of the output cycloconverter are realized,the surge voltage and surge current of the output cycloconverters are overcome. The twelve kinds of modes and equivalent circuits within one high frequency switching period are carefully analyses.By using the state-space averaging approach,the converter's averaging model is presented,the output characteristic curve and design criterion of key circuit parameters such as output voltage,filtering inductance,common conduction time,uni-polarity SPWM waveform's duty cycle etc are given. This kind of converter has the advantages such as high frequency electrical isolation,simple topology,two-stage power conversion(LFAC/HFAC/LFAC),high power den
sity,bi-directional power flow,soft commutation of output cycloconverter,uni-polarity SPWM waveform,no audio noise etc.
The correction and advance of the new concept of the 220V + 10%(50Hz)/220V(50Hz) uni-polarity phase-shifted controlled voltage mode AC/AC converter with high frequency . ac link is fully verified by the simulation and the pricinple test.This kind of converter lay the key technical foundation on new type electronic transformer,regulated sinusoidal ac power supply,ac regulator.
220V±10％(50Hz)／220V(50Hz)单极性移相控制电压源高频交流环节AC／AC变换器的仿真与原理试验证实了这类变换器新概念的正确性与先进性。为新一代正弦交流稳压器、电子变压器、交流调压器的实现奠定了关键技术基础。
Abstract:The uni-polarity phase-shifted controlled voltage mode AC/AC converters with high frequency ac link based on Forward converters are firstly proposed and deeply investigated.This kind of converters is constituted of input cycloconveter,high frequency transformer,output cycloconverter,input and output filters. It includes full bridge-full wave mode and full bridge-full bridge mode topologies,the former is suit for low output voltage field and the later is suit for high output voltage field. The unsteady input commercial frequency sinusoidal voltage with high harmonic is modulated into bi-polarity three-state high frequency ac volage by the input cycloconverter,bi-polarity three-state high frequency ac volage is demodulated into uni-polarity three-state SPWM wave by the output cycloconverter,and the uni-polarity three-state SPWM wave is filter into steady commercial frequency sinusoidal voltage with low harmonic. By using phase shifting control between right bridge leg and left bridge leg,the output cy
cloconverter commutating while the bi-polarity three-state high frequency ac volage from the input cycloconveter is zero,.and commutation overlap of the output cycloconverter and polarity selection of the input voltage,the leakage inductance energy and the output filtering inductance current are naturally commutated,and ZVS switching of the output cycloconverter are realized,the surge voltage and surge current of the output cycloconverters are overcome. The twelve kinds of modes and equivalent circuits within one high frequency switching period are carefully analyses.By using the state-space averaging approach,the converter's averaging model is presented,the output characteristic curve and design criterion of key circuit parameters such as output voltage,filtering inductance,common conduction time,uni-polarity SPWM waveform's duty cycle etc are given. This kind of converter has the advantages such as high frequency electrical isolation,simple topology,two-stage power conversion(LFAC/HFAC/LFAC),high power den
sity,bi-directional power flow,soft commutation of output cycloconverter,uni-polarity SPWM waveform,no audio noise etc.
The correction and advance of the new concept of the 220V + 10%(50Hz)/220V(50Hz) uni-polarity phase-shifted controlled voltage mode AC/AC converter with high frequency . ac link is fully verified by the simulation and the pricinple test.This kind of converter lay the key technical foundation on new type electronic transformer,regulated sinusoidal ac power supply,ac regulator.
引文
1．陈道炼，“高频交流环节AC／AC变换器原理研究”，国家自然基金、江苏省自然科学基金申请书，1999．
2．陈道炼，“软开关交—交型高频环节机载电子变压器研究”，航空科学基金申请书，2002．
3. Charles L.Neft et al, "Theory and design of a 30-hp matrix converter", IEEE Trans.on IA, 1992, 28(3):546-551
4．林辉等，“电力电子技术”，武汉理工大学出版社，2003．
5. I.Yamato et al, "New conversion system for UPS using high frequency link", IEEE PESC'88, pp.658～663.
6. I. Yamato et al, "High frequency link DC/AC converter for UPS with a voltage clamper", IEEE PESC'90, pp.749～756.
7. K.Harada et al, "Phase controlled DC/AC converter with high frequency switching", IEEE PESC'87, pp. 13～19.
8．张友军，“高频脉冲交流环节航空静止变流器研究”，南京航空航天大学硕士学位论文，2002．
9．陈道炼，“高频环节航空静止变流器研究”，南京航空航天大学博士后研究工作报告，2001．
10．陈道炼，“软开关PWM组合式航空静止变流器研究”，南京航空航天大学博士学位论文，1998．
11．吴保芳等，“一种具有高频环节的SPWPM变换电路的研究”，电力电子技术，1997，No．2，pp．44～47．
12．李磊、陈道炼、张友军、潘海朗、胡育文，“移相控制高频脉冲交流环节逆变器研究”，电工技术学报，2002，6，pp．34～37．
13．陈道炼，李磊．电压源高频交流环节AC／AC变换器原理研究．电工技术学报，2001，16(6)：25～30．
14．史平君．实用电源技术手册：电源元器件分册．沈阳：辽宁科学技术出版社，1999．
15．王儒全(校)，美国德克萨斯仪器公司TTL集成电路特性应用手册，上海市半导体器件研究所，1984．10．藏馆编号：TN43-62 1003(s)-2．
16．通用数字电路[新编电子电路大全第3卷]，中国计量出版社．藏馆编号：TN7-61 1002-C3．
17. Unitrode integrated circuits, "Product & Applications Handbook", 1995-1996.
18．新康达磁业有限公司，“新康达磁芯选用指南”．
19．康华光，《电子技术基础》，高等教育出版社，1988．
20．陈伯时等，《电力拖动自动控制系统》，机械工业出版社，1981．
21．龚绍文，“磁路及带铁心电路”高等教育出版社，1985．
2．陈道炼，“软开关交—交型高频环节机载电子变压器研究”，航空科学基金申请书，2002．
3. Charles L.Neft et al, "Theory and design of a 30-hp matrix converter", IEEE Trans.on IA, 1992, 28(3):546-551
4．林辉等，“电力电子技术”，武汉理工大学出版社，2003．
5. I.Yamato et al, "New conversion system for UPS using high frequency link", IEEE PESC'88, pp.658～663.
6. I. Yamato et al, "High frequency link DC/AC converter for UPS with a voltage clamper", IEEE PESC'90, pp.749～756.
7. K.Harada et al, "Phase controlled DC/AC converter with high frequency switching", IEEE PESC'87, pp. 13～19.
8．张友军，“高频脉冲交流环节航空静止变流器研究”，南京航空航天大学硕士学位论文，2002．
9．陈道炼，“高频环节航空静止变流器研究”，南京航空航天大学博士后研究工作报告，2001．
10．陈道炼，“软开关PWM组合式航空静止变流器研究”，南京航空航天大学博士学位论文，1998．
11．吴保芳等，“一种具有高频环节的SPWPM变换电路的研究”，电力电子技术，1997，No．2，pp．44～47．
12．李磊、陈道炼、张友军、潘海朗、胡育文，“移相控制高频脉冲交流环节逆变器研究”，电工技术学报，2002，6，pp．34～37．
13．陈道炼，李磊．电压源高频交流环节AC／AC变换器原理研究．电工技术学报，2001，16(6)：25～30．
14．史平君．实用电源技术手册：电源元器件分册．沈阳：辽宁科学技术出版社，1999．
15．王儒全(校)，美国德克萨斯仪器公司TTL集成电路特性应用手册，上海市半导体器件研究所，1984．10．藏馆编号：TN43-62 1003(s)-2．
16．通用数字电路[新编电子电路大全第3卷]，中国计量出版社．藏馆编号：TN7-61 1002-C3．
17. Unitrode integrated circuits, "Product & Applications Handbook", 1995-1996.
18．新康达磁业有限公司，“新康达磁芯选用指南”．
19．康华光，《电子技术基础》，高等教育出版社，1988．
20．陈伯时等，《电力拖动自动控制系统》，机械工业出版社，1981．
21．龚绍文，“磁路及带铁心电路”高等教育出版社，1985．
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