Fine Current Harmonics Reduction Method for Electrolytic Capacitor-Less and Inductor-Less Inverter Based on Motor Torque Control and Fast Voltage Feedforward Control for IPMSM
Fine Current Harmonics Reduction Method for Electrolytic Capacitor-Less and Inductor-Less Inverter Based on Motor Torque Control and Fast Voltage Feedforward Control for IPMSM
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DOI：
10.1109/tie.2016.2614270
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发表时间：
2017-02
影响因子：
7.7
通讯作者：
K. Abe;H. Haga;K. Ohishi;Y. Yokokura
中科院分区：
文献类型：
--
作者：
K. Abe;H. Haga;K. Ohishi;Y. Yokokura
在无电解电容和无电感单相转三相逆变器中，逆变器不仅控制电机，还控制输入功率因数。如果电机存在较大的空间谐波，则谐波会流入源侧的输入电流。本文提出了两种新的功率因数校正方法来改善基频的输入电流响应并减少输入电流谐波。第一种方法通过采用关注输入功率与电机扭矩之间关系的电机扭矩控制策略来实现高功率因数运行。电机扭矩控制允许设计控制器的增益以实现高功率因数并增强针对电机参数变化的鲁棒性。第二种方法通过使用快速电压前馈控制 (FVFFC) 来改善逆变器输出功率响应，该控制通过关注平均直流母线电流来直接控制逆变器输出功率。由于内置式永磁同步电机的空间谐波，FVFFC降低了输入电流谐波，并且输入电流谐波满足准则JIS 61000-3-2的建议。通过实验验证了所提出方法的有效性。
In an electrolytic capacitor-less and inductor-less single-phase-to-three-phase inverter, the inverter controls not only the motor but also the input power factor. If the motor has large spatial harmonics, the harmonics flow into the input current at the source side. This paper proposes two new power factor correction methods to improve the input current response of a fundamental frequency and to reduce the input current harmonics. The first method realizes high-power-factor operation by adopting a motor torque control strategy that focuses on the relationship between the input power and the motor torque. The motor torque control allows for designing the gain of the controller to realize a high power factor and enhances the robustness against motor parameter variations. The second method improves the inverter output power response by using a fast voltage feedforward control (FVFFC) that controls the inverter output power directly by focusing on the average dc-link current. The FVFFC reduces the input current harmonics owing to the spatial harmonics of an interior permanent-magnet synchronous motor, and the input current harmonics satisfy the recommendations of guideline JIS 61000-3-2. The effectiveness of the proposed methods is verified through experiments.