The invention discloses a bidirectional high-transformation-ratio VIENNA rectifier, and the rectifier firstly carries out the bidirectional extension of a basic VIENNA rectifier, and enables a part ofuncontrollable switches to be replaced by controllable switches, so as to enable a current to be transmitted from a DC side to an AC side. In addition, the CLLLC resonant bidirectional DC/DC converter is connected to the DC output end of the bidirectional VIENNA rectifier. The circuit structure of the CLLLC resonant bidirectional DC/DC converter is symmetrical, and the forward and reverse workingperformances of the CLLLC resonant bidirectional DC/DC converter are consistent. As the power factor corrector, the power factor can be 1, the voltage stress is halved, the power factor belongs to Boost topology, the inductive current is continuous, the bidirectional transmission of energy is realized, the conversion efficiency and the output voltage stage number of the circuit are improved, theoutput voltage is stable, the harmonic waves are few, the voltage regulation rate and the load regulation rate are higher, and application prospect is very wide.
本发明公开了一种双向高变比VIENNA整流器,该VIENNA整流器首先对基础的VIENNA整流器进行双向延伸,将部分不可控开关替换为可控开关使电流可以从直流侧传输到交流侧。此外将CLLLC谐振式双向DC/DC变换器连接在该双向VIENNA整流器的直流输出端。CLLLC谐振式双向DC/DC变换器的电路结构对称,正反向的工作性能一致。本发明作为功率因数校正器,可以使功率因数为1,且电压应力减半,属于Boost型拓扑,电感电流连续,同时实现了能量的双向传输,提高了电路的转换效率和输出电压级数,且输出电压稳定,谐波少,具有较高的电压调整率和负载调整率,应用前景非常广泛。
Novel bidirectional high-transformation-ratio VIENNA rectifier
一种新型双向高变比VIENNA整流器
2021-03-19
Patent
Electronic Resource
Chinese
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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