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首页> 外文会议>International Conference on Electrical Machines >DC Current and Torque Ripple Mitigation in Modular PMSG Drives for Multi-MW WECSs with Linear PWM Inverter Modulation
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DC Current and Torque Ripple Mitigation in Modular PMSG Drives for Multi-MW WECSs with Linear PWM Inverter Modulation

机译：具有线性PWM逆变器调制的模块化PMSG驱动器模块化PMSG驱动器中的直流电流和扭矩纹波缓解

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The paper analyzes a torque and DC-current ripple mitigation strategy in a modular axial-flux permanent magnet synchronous generator for multi-MW Wind Energy Conversion Systems (WECSs). The machine modules are aligned with one another and driven by the same shaft. Each module is connected to its own two-level converter and the converters are paralleled at the DC side. In order to reduce the DC-side current harmonics and the ripple in the resultant torque, a phase shift between the converters' PWM carrier signals is implemented. The converters are operated within the linear PWM modulation range. A mathematical analysis is carried out. A criterion for the best choice of the phase shift in two- and three-module configurations is developed. Theoretical results are compared with those from simulations in Matlab/Simulink, verifying the soundness of the method.
机译：本文分析了多MW风能转换系统（WECSS）模块化轴向磁通永磁同步发电机中的扭矩和直流纹波缓解策略。机器模块彼此彼此对准并由相同的轴驱动。每个模块连接到其自己的双级转换器，转换器在直流侧并联。为了减小所得扭矩中的DC侧电流谐波和纹波，实现了转换器PWM载波信号之间的相移。转换器在线性PWM调制范围内操作。进行数学分析。开发了用于两模和三模配置中最佳相移相移的标准。将理论结果与来自Matlab / Simulink中的模拟的理论结果进行比较，验证该方法的声音。

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