Load Voltage Regulation Method for an Isolated AC-DC Converter with Power Decoupling Operation
Load Voltage Regulation Method for an Isolated AC-DC Converter with Power Decoupling Operation
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DOI：
10.23919/ipec.2018.8506667
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发表时间：
2018-05
期刊：
影响因子：
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通讯作者：
Shohei Komeda;H. Fujita
中科院分区：
文献类型：
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作者：
Shohei Komeda;H. Fujita
提出了一种适用于功率解耦运行的隔离式单相AC-DC转换器的新型负载电压调节方法。功率解耦操作最初被提出是为了在线路电流中实现单位位移功率因数。但是，单位位移功率因数运算可以在有限的运行功率范围内调节负载电压，且负载电压在轻负载情况下降低尤为明显。该控制方法不补偿滤波电容的超前电流，使负载电压在更宽的功率范围内恒定调节成为可能。结果表明，所提出的控制方法在100V、300W的实验装置上实现了有效的负载电压调节，具有较高的功率转换效率。
This paper propose a new load voltage regulation method for an isolated single-phase ac-to-dc converter with power decoupling operation. The power decoupling operation has originally been proposed to achieve a unity displacement power factor in the line current. However, the unity displacement power factor operation can regulate the load voltage in a limited operating power range, and the load voltage decreases especially under a light load condition. The proposed control method does not compensate the leading current due to filter capacitors and make it possible to regulate the load voltage at a constant level in a wider power range. As a result, the proposed control method realizes an effective load voltage regulation with a higher power conversion efficiency by a 100-V, 300-W experimental setup.