An asymmetrical ΓZ-source hybrid power converter with space vector pulse-width modulation
An asymmetrical ΓZ-source hybrid power converter with space vector pulse-width modulation
复制标题
具有空间矢量脉宽调制的非对称ГZ源混合功率变换器
DOI：
10.1109/ecce.2014.6953413
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Qing
中科院分区：
文献类型：
--
作者：
Jun Cai;Qing
本文提出了一种非对称Γ Z源混合功率变换器，用于燃料电池-蓄电池混合动力汽车。该转换器使用非对称IZ源转换器来连接燃料电池，并使用双向DC-DC转换器来连接电池。通过DC-DC变换器，可以将非对称Γ Z源变换器的电容器电压控制为恒定值。通过调节逆变器的调制指数，可以将燃料电池电压控制在参考值内，这可以确保燃料电池中的高运行效率。为了减少半导体器件在直通状态下的开关次数，采用空间矢量脉宽调制（SVPWM）控制方法实现了非对称Γ Z源逆变器的最大恒压升压控制。为了验证所提出的功率变换器拓扑和控制方法的有效性，在Opal-RT真实的时间数字仿真器中进行实时仿真模型。仿真结果验证了所提方法的可行性。
In this paper, an asymmetrical ΓZ-source hybrid power converter is proposed for fuel cell-battery hybrid vehicle application. The converter uses an asymmetrical ΓZ-source converter to interface the fuel cell and a bidirectional DC-DC converter to interface the battery. Via the DC-DC converter, the capacitor voltage of the asymmetrical ΓZ-source converter can be controlled into a constant value. By adjusting the modulation index of the inverter, the fuel cell voltage can be controlled into the reference value, which can ensure high operation efficiency in the fuel cell. To reduce the number of semiconductor switching in the shoot through states, the space vector pulse-width modulation (SVPWM) control method is implemented for achieve the maximum constant boost control for the asymmetrical ΓZ-source inverter. To verify the validity of the proposed power converter topology and the control methods, the real-time simulation model is performed in Opal-RT Real Time Digital Simulator. The simulation results demonstrated the feasibility of the proposed methods.