In this paper, a method to control the harmonic content of the magnetic flux density in the airgap of a synchronous machine is presented. Voltage harmonics in one phase as well as the exciting magnetic forces can be affected. Switched power electronics were used to provide the field current to a synchronous machine, the control added specific current harmonics to the DC field current in order to minimize either voltage harmonics or magnetic forces. The method is verified and compared with simulations and experiments on an existing electrical machine.

中文翻译：

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使用励磁电流注入控制同步电机中的气隙磁通密度谐波

在本文中，提出了一种控制同步电机气隙中磁通密度谐波含量的方法。一相中的电压谐波以及励磁磁力都会受到影响。开关电力电子设备用于向同步电机提供励磁电流，该控制器将特定的电流谐波添加到直流励磁电流中，以最大限度地减少电压谐波或磁力。该方法被验证并与现有电机的模拟和实验进行比较。