电动汽车用IPMSM驱动器磁链减弱和MTPA控制过程中D-Q轴参考电压限值的动态调整

2016 2nd International Conference on Control, Instrumentation, Energy & Communication (CIEC) Pub Date : 1900-01-01 DOI:10.1109/CIEC.2016.7513821

T. Dey, K. Mukherjee, P. Syam

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引用次数: 7

摘要

电动汽车(EV)或混合动力汽车(HEV)要求电动机具有高功率密度、高效率、宽恒功率工作区域和磁链弱化(FW)能力。三相内置永磁同步电动机(ipmms)符合这些标准，因此在大多数商用电动汽车中使用。本文介绍了两轴(d-q)转子参照系中每安培最大转矩(MTPA)控制策略的分析、控制系统设计和仿真。该控制应用于定制设计的三相电动汽车牵引IPMSM上，用于电动滑板车直接驱动到基本速度或超过基本速度，并采用磁链弱化控制，以照顾机器的电压和电流限制。本文提出了一种动态改变d轴和q轴参考电压极限而不受电机电压约束的新方法，以有效地利用大的消磁范围。

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Dynamic adjustments of the D-Q axes reference voltage limits during flux weakening and MTPA control of an IPMSM drive for an EV application

Electric Vehicles (EV) or Hybrid electric vehicles (HEV) require an electric motor which has high power density, high efficiency and a wide constant power operating region with flux weakening (FW) capability. Three phase Interior Permanent Magnet Synchronous Motors (IPMSMs) meet these criteria and are hence used in most commercial electrified vehicles. This work presents analysis, control system design and simulation of the Maximum torque per ampere (MTPA) control strategy in the two-axes (d-q) rotor reference frame. The control is applied on a custom-designed three-phase EV traction IPMSM for an electric scooter direct-drive up to base speed and beyond the base speed with flux-weakening control taking care of the machine's voltage and current constraints. A novel way to dynamically change the limits of the d-axis and q-axis reference voltages yet remaining within the machine's voltage constraints is presented in this paper in order to exploit the large flux-weakening range effectively.

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2016 2nd International Conference on Control, Instrumentation, Energy & Communication (CIEC)

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