Development of an 85-kW Bidirectional Quasi-Z-Source Inverter With DC-Link Feed-Forward Compensation for Electric Vehicle Applications
Development of an 85-kW Bidirectional Quasi-Z-Source Inverter With DC-Link Feed-Forward Compensation for Electric Vehicle Applications
复制标题
开发适用于电动汽车应用的具有直流母线前馈补偿的 85kW 双向准 Z 源逆变器
DOI：
10.1109/tpel.2012.2237523
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发表时间：
2013
影响因子：
6.7
通讯作者：
Jin Wang
中科院分区：
文献类型：
--
作者：
F. Guo;Lixing Fu;Chien;Cong Li;Woongchul Choi;Jin Wang
本文提出了一个详细的操作分析，控制器的设计和实现的大功率，双向准Z源逆变器（BQ-ZSI）的电动汽车应用。电路分析表明，在准Z源网络中引入双向开关，可以改善逆变器在小电感、低功率因数下的性能。在电路分析的基础上，推导出了BQ-ZSI的小信号模型，指出当直流输入电压存在扰动时，电路容易振荡。因此，一个专用的电压控制器与前馈补偿的设计，以拒绝干扰和稳定的直流母线电压在非击穿状态。已建成85千瓦的原型车。仿真和实验结果证明了电路的功能和所提出的控制策略的有效性。
This paper presents a detailed operation analysis, controller design, and realization of a high-power, bidirectional quasi-Z-source inverter (BQ-ZSI) for electric vehicle applications. The circuit analysis shows that with a bidirectional switch in the quasi-Z-source network, the performance of the inverter under small inductance and low power factor can be improved. Based on the circuit analysis, a small signal model of the BQ-ZSI is derived, which indicates that the circuit is prone to oscillate when there is disturbance on the dc input voltage. Therefore, a dedicated voltage controller with feed-forward compensation is designed to reject the disturbance and stabilize the dc-link voltage during a non-shoot-through state. An 85-kW prototype has been built. Both simulation and experimental results are presented to prove the functionality of the circuit and the effectiveness of the proposed control strategy.