A High FrequencyLink DC/AC Converter using a Three-Phase Output PWM Controlled Cycloconverter
A High FrequencyLink DC/AC Converter using a Three-Phase Output PWM Controlled Cycloconverter
复制标题
使用三相输出 PWM 控制环路转换器的高频链接 DC/AC 转换器
DOI：
10.1541/ieejias.112.545
复制
发表时间：
1992
影响因子：
--
通讯作者：
S. Okuma
中科院分区：
文献类型：
--
作者：
Katsuhisa Inagak;S. Okuma
UPS用高频链DC/AC变换器具有隔离变压器体积小、重量轻的特点。在高频链DC/AC变换器中考虑两种类型。一种称为DC/DC转换器类型，另一种称为循环转换器类型。DC/DC变换器类型可以容易地构造，但是由于功率转换的多个步骤，效率低。已经提出了具有单相输出的循环变换器类型的系统配置，但是没有研究直接将高频电压转换成三相线电压的循环变换器类型。提出了采用PWM周波变换器的三相输出电压高频链DC/AC变换器的系统结构和控制方法。该系统可以双向控制潮流，对直流电源进行充电和瞬时无功补偿。仿真和实验验证了该系统的可行性。
High frequency link DC/AC converters for UPS are characterized by small size and weight of the isolation transformers. Two types are considered in the high frequency link DC/AC converters. One is called a DC/DC converter type, and the other is a cycloconverter type. The DC/DC converter type can be constructed easily, but the efficiency is low because of many steps of power conversion The system configuration for the cycloconverter type with a single phase output has been proposed, but the cycloconverter type which directly converts high frequency voltage into three phase line voltages is not studied.In this paper, the system configuration and the control method of the high frequency link DC/AC converter with three-phase output voltages using the PWM cycloconverter are proposed. This system can control flow of power bidirectionally, and charge the DC power supply and compensate instantaneous reactive power. Simulations and experiments are carried out to confirm the feasibility of the proposed system.