The embodiment of the invention relates to the technical field of electric power, in particular to a converter control circuit, a converter and a charging pile. The converter control circuit and the converter comprise the coupling unit, the power conversion unit, the bus unit and the control unit, one path of input of alternating current is converted into two paths or multiple paths of output by additionally arranging the coupling unit, in the multiple paths of output, current is isolated and equally divided, and the output current of the power conversion unit is improved. Meanwhile, the internal structure of the coupling unit suppresses the circulating current in the converter, and the circulating current loss in the power conversion unit is reduced. Furthermore, the power conversion unit is provided with a plurality of T-shaped three-level inversion units, so that a multi-level technology is realized, multi-voltage level is provided, and multi-level output can remarkably reduce harmonic content of output voltage and current, reduce current ripples and improve electric energy quality.
本申请实施例涉及电力技术领域,具体涉及一种变流器控制电路、变流器和充电桩。本申请提出的变流器控制电路和变流器包括耦合单元、功率变换单元、母线单元和控制单元,通过增加耦合单元将交流电的一路输入转换成两路或者多路输出,在多路输出中,电流是隔离均分的,提高了功率变换单元的输出电流。同时,耦合单元的内部结构使得变流器内部的环流得到抑制,降低了功率变换单元内部的环流损耗。进一步的,功率变换单元通过设置多个T型三电平逆变单元,实现了多电平技术,提供了多电压电平,多电平输出能够显著降低输出电压和电流的谐波含量,减少电流纹波,提高电能质量。
Converter control circuit, converter and charging pile
变流器控制电路、变流器和充电桩
2025-02-18
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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