全桥式电流源高频交流环节AC/AC变换器研究
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摘要
本文首先论述了AC／AC变换器的发展及现状。
本文提出了基于反激Flyback变换器的电流源高频交流环节AC／AC变换器电路结构及其拓扑族。该电路结构由输入周波变换器、高频储能式变压器、输出周波变换器以及输入、输出滤波器构成能够将一种不稳定劣质的正弦交流电变换成另一种同频率稳定的优质正弦交流电压。该电路拓扑族包括单四象限功率开关式、推挽式、半桥式、全桥式电路，以全桥式电路为例分析研究了这类换器工作模式、稳态原理与电压瞬时值反馈控制策略，给出了变换器的外特性曲线、关键电路参数、与电网电压n倍频或n分频信号同步的基准正弦电路的设计。论文对这类变换器实现AC／AC变频变换作了初步探讨。
这类换器具有电路拓扑简洁、两级功率变换(LFAC／HFAC／LFAC)、双向功率流、高频电气隔离、网侧电流波形好、负载适应能力强、适合于小功率变换场合等特点。仿真与原理试验均证实了这类变换器的正确性与先进性，为实现新一代电子变压器、正弦交流稳压器、交流调压器奠定了关键技术基础。
The present status and development trend of AC/AC converters are firstly presented in the thesis.
Then novel circuit structure and circuit topologies family of current mode AC/AC converters with high frequency ac link,based on Flyback converter,are proposed. The circuit structure which can transfer one unregulated sinusoidal voltage with high THD into another regulated constant frequency sinusoidal voltage with low THD is constituted of input cycloconverter,high frequency storage transformer,output cycloconverter,input and output filter. The topologies family include single four-quadrant power switch mode,push-pull mode,half-bridge mode,and full-bridge mode circuits. Taking full-bridge mode circuit as an example,the operational mode,steady principles,transient voltage feedback control strategy of the converter are investigated. The output characteristic curve,the design for the key circuit parameters and the reference sinusoidal circuit which is synchronous with the signal of n or 1/n times line voltage frequency are given. The current mode AC/AC variable frequency converters with high frequency ac link
are also presented in the thesis
The current mode AC/AC converters with high frequency ac link have the advantages such as simple topology,two-stage power conversions,bidirectional power flow,high frequency electrical isolation,strong load adapting ability,suit for low power conversion fields. The correction and advance of these converters are verified by the simulation and test results.
本文提出了基于反激Flyback变换器的电流源高频交流环节AC／AC变换器电路结构及其拓扑族。该电路结构由输入周波变换器、高频储能式变压器、输出周波变换器以及输入、输出滤波器构成能够将一种不稳定劣质的正弦交流电变换成另一种同频率稳定的优质正弦交流电压。该电路拓扑族包括单四象限功率开关式、推挽式、半桥式、全桥式电路，以全桥式电路为例分析研究了这类换器工作模式、稳态原理与电压瞬时值反馈控制策略，给出了变换器的外特性曲线、关键电路参数、与电网电压n倍频或n分频信号同步的基准正弦电路的设计。论文对这类变换器实现AC／AC变频变换作了初步探讨。
这类换器具有电路拓扑简洁、两级功率变换(LFAC／HFAC／LFAC)、双向功率流、高频电气隔离、网侧电流波形好、负载适应能力强、适合于小功率变换场合等特点。仿真与原理试验均证实了这类变换器的正确性与先进性，为实现新一代电子变压器、正弦交流稳压器、交流调压器奠定了关键技术基础。
The present status and development trend of AC/AC converters are firstly presented in the thesis.
Then novel circuit structure and circuit topologies family of current mode AC/AC converters with high frequency ac link,based on Flyback converter,are proposed. The circuit structure which can transfer one unregulated sinusoidal voltage with high THD into another regulated constant frequency sinusoidal voltage with low THD is constituted of input cycloconverter,high frequency storage transformer,output cycloconverter,input and output filter. The topologies family include single four-quadrant power switch mode,push-pull mode,half-bridge mode,and full-bridge mode circuits. Taking full-bridge mode circuit as an example,the operational mode,steady principles,transient voltage feedback control strategy of the converter are investigated. The output characteristic curve,the design for the key circuit parameters and the reference sinusoidal circuit which is synchronous with the signal of n or 1/n times line voltage frequency are given. The current mode AC/AC variable frequency converters with high frequency ac link
are also presented in the thesis
The current mode AC/AC converters with high frequency ac link have the advantages such as simple topology,two-stage power conversions,bidirectional power flow,high frequency electrical isolation,strong load adapting ability,suit for low power conversion fields. The correction and advance of these converters are verified by the simulation and test results.
引文
1．陈道炼，“高频交流环节AC／AC变换器原理研究”，国家自然基金申请书，1999．
2．黄俊主编，“半导体变流技术”，机械工业出版社，1984
3．林辉，王辉，“电力电子技术”，武汉理工大学出版社，2002
4．蔡宣三、龚绍文，《高频功率电子学》，科学出版社，1993
5．黄敏超，“高频链逆变技术的研究”，浙江大学博士学位论文，1998
6．《CMOS集成电路》，国防工业出版社，1985
7．李成章、王淑芳，《新型UPS不间断电源原理与维修技术》，电子工业出版社，1985
8. P.M.Espelage et al, "High frequency link power conversion", IEEE Trans.on IA, 1977, Vol. 13, no.5, pp.387～394
9. J.Jalade et al, "New DC/AC high power cell structure improve performances for sine generater", IEEE PESC, 1980, pp.326～331.
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. I.Yamato et al, "High frequency link DC/AC converter for UPS with a voltage clamper", IEEE PESC'90, pp.749～756.
12. I.Yamato et al, "New conversion system for UPS using high frequency link", IEEE PESC'88, pp.658～663.
13. Yong-Ho Chung et al," Bilateral series resonant inverter for High frequency link UPS", IEEE PESC'89,pp.83～89.
14. H.Pinherio et al, "Zero votage switching series resonant based UPS", IEEE PESC98, pp. 1879～1885
15．张占松、蔡宣三 “开关电源的原理与设计”，电子工业出版社，1999
16．张立，黄两一，“电力电子场控器件及其应用”，机械工业出版社，1996
17．龚绍文，“磁路及带铁心电路”高等教育出版社，1985
18．南京898厂，“磁性材料手册”
19. UNITRODE INTEGRATED CIRCUITS,"Product & Applications Handbook",1995-96
20. M.Matsui et al, "High frequency link DC/AC converter with suppressed voltage clamp circuits——naturally commutated phase angle controll with self turn-off devices", IEEE Trans. on IA, 1996, Vol.32, no.2, pp.293～300.
21．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．
22．胡存生、胡鹏编著，《集成开关电源的设计、制作、调试与维修》，人民邮电出版社，1996。
23. K.Harada et al, "Phase controlled DC/AC converter with high frequency switching", IEEE PESC'87, pp.13～19.
2．黄俊主编，“半导体变流技术”，机械工业出版社，1984
3．林辉，王辉，“电力电子技术”，武汉理工大学出版社，2002
4．蔡宣三、龚绍文，《高频功率电子学》，科学出版社，1993
5．黄敏超，“高频链逆变技术的研究”，浙江大学博士学位论文，1998
6．《CMOS集成电路》，国防工业出版社，1985
7．李成章、王淑芳，《新型UPS不间断电源原理与维修技术》，电子工业出版社，1985
8. P.M.Espelage et al, "High frequency link power conversion", IEEE Trans.on IA, 1977, Vol. 13, no.5, pp.387～394
9. J.Jalade et al, "New DC/AC high power cell structure improve performances for sine generater", IEEE PESC, 1980, pp.326～331.
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. I.Yamato et al, "High frequency link DC/AC converter for UPS with a voltage clamper", IEEE PESC'90, pp.749～756.
12. I.Yamato et al, "New conversion system for UPS using high frequency link", IEEE PESC'88, pp.658～663.
13. Yong-Ho Chung et al," Bilateral series resonant inverter for High frequency link UPS", IEEE PESC'89,pp.83～89.
14. H.Pinherio et al, "Zero votage switching series resonant based UPS", IEEE PESC98, pp. 1879～1885
15．张占松、蔡宣三 “开关电源的原理与设计”，电子工业出版社，1999
16．张立，黄两一，“电力电子场控器件及其应用”，机械工业出版社，1996
17．龚绍文，“磁路及带铁心电路”高等教育出版社，1985
18．南京898厂，“磁性材料手册”
19. UNITRODE INTEGRATED CIRCUITS,"Product & Applications Handbook",1995-96
20. M.Matsui et al, "High frequency link DC/AC converter with suppressed voltage clamp circuits——naturally commutated phase angle controll with self turn-off devices", IEEE Trans. on IA, 1996, Vol.32, no.2, pp.293～300.
21．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．
22．胡存生、胡鹏编著，《集成开关电源的设计、制作、调试与维修》，人民邮电出版社，1996。
23. K.Harada et al, "Phase controlled DC/AC converter with high frequency switching", IEEE PESC'87, pp.13～19.