Direct DC-Link Current Control Considering Voltage Saturation for Realization of Sinusoidal Source Current Waveform Without Passive Components for IPMSM Drives
Direct DC-Link Current Control Considering Voltage Saturation for Realization of Sinusoidal Source Current Waveform Without Passive Components for IPMSM Drives
复制标题
DOI：
10.1109/tie.2017.2760289
复制
发表时间：
2018-05
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
为了降低单相到三相功率变换器的成本和尺寸，提出了一种无电解电容的单相到三相逆变器。由于系统没有能量存储，例如电解电容器，因此由于电机的空间谐波，导致电源电流谐波。添加用于过滤源电流谐波的电感器增加了系统的成本和尺寸。为了在不增加无源元件的情况下改善电源电流波形，有必要通过逆变器控制来降低电源电流谐波。然而，当逆变器控制减少源电流谐波时，逆变器的电压饱和引起源电流失真。在额定转速和额定负载下，电压饱和区占电源周期的40-50%，电源电流谐波不符合IEC 61000-3-2的要求。本文提出了一种考虑电压饱和的直接直流侧电流控制（DDCCC）方法，并给出了应用该方法的dq轴电流参考值的计算方法，使电源电流的谐波含量低于指标要求。通过实验验证了该方法的有效性。
In order to reduce the cost and the size of a single-phase to three-phase power converter, an electrolytic capacitor-less single-phase to three-phase inverter is proposed. As the system does not have energy storage, such as an electrolytic capacitor, it results in source current harmonics due to the spatial harmonics of the motor. Adding an inductor for filtering the source current harmonics increases the cost and size of the system. In order to improve the source current waveform without adding passive components, it is necessary to reduce the source current harmonics via inverter control. However, when the inverter control reduces the source current harmonics, voltage saturation of the inverter causes source current distortion. At the rated speed and load, the voltage saturation region amounts to 40–50% of the source period, and the source current harmonics do not meet the guideline of IEC 61000-3-2. This paper proposes a direct dc-link current control (DDCCC) considering voltage saturation and the dq -axis current reference calculation for applying the DDCCC, which reduces the source current harmonics below the guideline. The effectiveness of the proposed method is verified through experiments.