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首页> 外文期刊>Journal of power electronics >Switching Pattern-Independent Simulation Model for Brushless DC Motors
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Switching Pattern-Independent Simulation Model for Brushless DC Motors

机译：无刷直流电动机的与开关模式无关的仿真模型

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摘要

In order to verify the performance of brushless DC (BLDC) motors, the simulation method has been widely used. The current of a BLDC motors flows on two phase windings to obtain a constant torque. However, the freewheeling current caused by the inductance component of a BLDC motor exists at the commutation point so that the current can flow on three phase windings at the same time. Due to the changes of the excited phases, the model equations are frequently changed during BLDC motor drive operation. The model equations can be also changed by the applied switching pattern since the current path in the inverter circuit changes according to switching pattern. A BLDC motor system can utilize various switching patterns for many different purposes. However, such changes of the model equations complicate the simulation procedure. In this paper, the technique to set up model equations is proposed to ease the simulation of a BLDC motor system through an inverter circuit analysis. The proposed technique will be verified using the C language. Although this method does not provide the level of detail obtainable from commercial simulation tools like PSIM or SIMULINK, it can provide an efficient way to quickly compare various conditions.
机译：为了验证无刷直流（BLDC）电动机的性能，仿真方法已被广泛使用。 BLDC电动机的电流在两相绕组上流动以获得恒定转矩。但是，由BLDC电动机的电感分量引起的续流电流存在于换向点，因此电流可以同时流过三相绕组。由于励磁相位的变化，在BLDC电机驱动操作期间，模型方程式经常更改。由于逆变器电路中的电流路径根据开关模式而变化，因此可以通过施加的开关模式来改变模型方程式。 BLDC电机系统可以将多种开关模式用于许多不同目的。然而，模型方程式的这种改变使仿真过程复杂化。本文提出了一种建立模型方程的技术，以通过逆变器电路分析简化BLDC电机系统的仿真。所提出的技术将使用C语言进行验证。尽管此方法无法提供可从诸如PSIM或SIMULINK之类的商业仿真工具获得的详细程度，但它可以提供一种快速比较各种条件的有效方法。

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