A variable voltage converter with direct bypass for traction drive inverters
A variable voltage converter with direct bypass for traction drive inverters
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用于牵引驱动逆变器的带直接旁路的可变电压转换器
DOI：
10.1109/ecce.2013.6647063
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
C. Lihua
中科院分区：
文献类型：
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作者：
C. Lihua
在这项工作中，提出了一种创新的和可行的解决方案，用于混合动力汽车牵引驱动逆变器的直接旁路的可变电压转换器（VVC）。采用该方法，VVC的能力显着增加，功率损耗显着降低。与该方法相关联的优点包括1）缓解在快速功率流瞬变期间发生的VVC振荡问题，因为VVC输出最小电压在输出侧电压低于HV电池电压的任何时候都被直接箝位到HV电池电压。2)VVC通过操作能力显著提高;因此，车辆EV驱动最高速度和持续时间均增加，3）显著降低VVC功率损失，显著提高车辆燃油经济性。这种解决方案已被证明是非常有用和可行的，特别是对插入式混合动力汽车的应用。
In this work, an innovative and feasible solution is proposed for a Variable Voltage Converter (VVC) with direct bypass for traction drive inverters in HEVs. With the proposed method, the VVC capability is significantly increased and power loss is dramatically reduced. The advantages associated with this method include 1) Mitigation of VVC oscillation issues occurring during fast power flow transients, since the VVC output minimum voltage is directly clamped to the HV battery voltage anytime the output side voltage is lower than that of the HV battery voltage. 2) A significant increase in VVC pass-through operation capability; as a result, both vehicle EV drive maximum speed and duration are increased, 3) significantly reduced VVC power loss and noticeably increased vehicle fuel economy. This solution has been proved to be very useful and feasible especially for Plug-in HEV applications.