基于双向全桥的部分隔离型四端口变换器的研究
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摘要
文章提出了基于双向全桥DC/DC的部分隔离型四端口变换器。该变换器由两个Boost变换器和一个双向全桥DC/DC变换器构成,实现了功率的双向传递以及部分端口之间的隔离。根据其提出了四端口的运行模式,设计出四端口变换器在不同的运行模式下的控制策略,最后通过四端口变换器的各个运行模式以及模式之间的转换实验分析,验证了新型四端口变换器的可行性。
According to the research of the traditional three-port converter, a novel partly-isolated four-port converter topology is proposed by combining two boost converters and a bidirectional full-bridge DC/DC converter together. The converter achieves the bidirectional flow of energy and isolation between ports, and it ensures the stability of photovoltaic power with a lithium battery energy storage system. Then the control strategy of four-port converter under different working modes is analyzed. Finally, the simulation of the four-port converter operating modes and the conversion between the modes are carried out to verify the feasibility of the new four-port converter.
According to the research of the traditional three-port converter, a novel partly-isolated four-port converter topology is proposed by combining two boost converters and a bidirectional full-bridge DC/DC converter together. The converter achieves the bidirectional flow of energy and isolation between ports, and it ensures the stability of photovoltaic power with a lithium battery energy storage system. Then the control strategy of four-port converter under different working modes is analyzed. Finally, the simulation of the four-port converter operating modes and the conversion between the modes are carried out to verify the feasibility of the new four-port converter.
引文
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[12]贾祺,赵彪,严干贵.基于高频链直流变压器的柔性中压直流配电系统分析[J].电力系统保护与控制,2016,44(16):90-98.
[2] P Patra, J Ghosh, A Patra. Control scheme for reduced cross-regulation in single single-inductor multipleoutput DC-DC converters[J]. IEEE Transactions on Industrial Electronics,2013,66:5095-5104.
[3]张君君,吴红飞,曹锋,等.半桥式三端口变换器建模与解耦控制[J].中国电机工程学报,2015,35(3):671-678.
[4] Li Y,Ruan X B,Yang D S,et al.Synthesis of multipleinput DC/DC converters[J].IEEE Transactions on Power Electronics,2010,25(9):2372-2385.
[5] Gummi K,Ferdowsi M. Double-input DC/DC power electronic converters for electric drive vehicles-topology exploration and synthesis using a single-pole triplethrow switch[J].IEEE Transactions on Industrial Electronics,2010,57(2):617-623.
[6] Wu H,Sun K,Ding S,et al. Topology derivation of nonisolated three-port DC–DC converters from DIC and DOC[J]. IEEE Transactions on Industrial Electronics,2013,28(7):3297-3307.
[7] Rehman Z,Al-Bahadly I, Mukhopadhyay S. Multiinput DC-DC converters in renewable energy applications-An overview[J]. Renewable and Sustainable Energy Reviews,2015,41:521-539.
[8] Zhu H,Zhang D,Zhang B,et al. A non-isolated threeport DC-DC converter and three-domain control method for PV-battery power systems[J].IEEE Transactions on Industrial Electronics,2015,62(8):4937-4947.
[9] Chen Y M,Yu X,Huang AQ.A new non-isolated threeport DC/DC converter with high step-up/down ratio[A].2012 IEEE Energy Conversion Congress and Exposition(ECCE)[C]. Raleigh:IEEE,2012.1520-1526.
[10]米芝昌,任春光,韩肖清,等.基于功率池的双层母线直流微电网协调控制策略[J].电网技术,2017,41(6):1830-1838.
[11]聂齐齐,张建成,王宁.独立光伏供电系统中多储能单元协调控制策略的研究[J].可再生能源,2018,36(3):340-345.
[12]贾祺,赵彪,严干贵.基于高频链直流变压器的柔性中压直流配电系统分析[J].电力系统保护与控制,2016,44(16):90-98.