A current-fed HF link direct DC/AC converter with active harmonic filter for fuel cell power systems
A current-fed HF link direct DC/AC converter with active harmonic filter for fuel cell power systems
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用于燃料电池电源系统的具有有源谐波滤波器的电流馈电高频链路直接 DC/AC 转换器
DOI：
10.1109/ias.2004.1348397
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
P. Enjeti
中科院分区：
文献类型：
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作者：
Yujin Song;Se;P. Enjeti
介绍了一种适用于燃料电池电源的电流型高频环节直接DC/AC变换器。电流型高频环节直接DC/AC变换器由一个带有源滤波器的电流型全桥逆变器、一个高频环节Transformer和一个简单的周波变换器组成。在初级的高频全桥逆变器产生正弦PWM调制的电流脉冲与零电流开关（ZCS），和在次级的循环变换器，其中仅由两个双向开关和输出滤波电容器产生正弦调制的60 Hz分裂单相输出电压波形与近零电流开关。连接到输入端子的可选有源谐波滤波器补偿从燃料电池汲取的低阶输入电流谐波，而无需长期能量存储设备，例如电池和超级电容器。提出了电流馈电高频环节DC/AC变换器和有源谐波滤波器的基本概念和操作。仿真结果验证了所提出的DC/AC变换器的可行性。
This paper describes a current-fed high frequency (HF) link direct DC/AC converter suitable for fuel cell power source. The proposed current-fed HF link direct DC/AC converter consists of a current-fed full-bridge inverter with an active harmonic filter, a HF link transformer, and a simple cycloconverter. The high frequency full-bridge inverter at the primary generates sinusoidally PWM modulated current pulses with zero current switching (ZCS), and the cycloconverter at the secondary which consists of only two bidirectional switches and output filter capacitors produces sinusoidally modulated 60 Hz split single phase output voltage waveforms with near zero current switching. An optional active harmonic filter connected to the input terminal compensates the low order input current harmonics drawn from the fuel cell without long-term energy storage devices such as batteries and super capacitors. The basic concept and operation of the proposed current-fed HF link DC/AC converter and active harmonic filter are presented. The various simulation results are provided to verify the feasibility of the proposed DC/AC converter.