Loss minimization of electric drive systems using a DC/DC converter and an optimized battery voltage in automotive applications
Loss minimization of electric drive systems using a DC/DC converter and an optimized battery voltage in automotive applications
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汽车应用中使用 DC/DC 转换器和优化电池电压的电力驱动系统损耗最小化
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
W. Hofmann
中科院分区：
文献类型：
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作者：
Stephan Tenner;Stephan Gimther;W. Hofmann
在汽车应用中，电压源逆变器通常通过电池为牵引电机供电。通过在电池和逆变器之间实现DC/DC变换器，直流链路电压是可调的。本文讨论了可变直流链路电压的好处，作为一个额外的自由度的损失最小化控制的电力驱动在电池供电的车辆。比较了带DC/DC变换器和不带DC/DC变换器的逆变器系统，确定了提高效率的操作区域。在不同的驱动循环中，讨论了由优化的电池电压产生的节能潜力。
Voltage source inverters generally feed the traction motor from a battery in automotive applications. By implementing a DC/DC converter between battery and inverter, the DC-link voltage is adjustable. This paper discusses the benefits of the variable DC-link voltage as an additional degree of freedom for a loss minimized control of electric drives in battery supplied vehicles. Inverter systems with and without DC/DC converter are compared and operating areas of improved efficiency are identified. Energy saving potentials resulting from an optimized battery voltage are discussed for different driving cycles.