非线性负载备用发电机的设计

Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI:10.1109/IAS.1992.244296

G. R. Phillips

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引用次数: 6

摘要

作者讨论了产生这些问题的原因，并对发电机的设计进行了可能的修改，以尽量减少电压波形的畸变。提出了一种计算谐波电流对发电机附加损耗的方法。本讨论专门针对10-2000 kW范围内凸极式发电机，但一般原则适用于所有类型的旋转励磁机。最佳发电机设计取决于系统连接。对于直接连接到平衡线路到神经负载的发电机，具有低零序电抗的2/3螺距机器可最大限度地减少三倍电压谐波失真。对于平衡三相负载，使用较长的线圈间距可以获得较低的亚瞬态电抗，从而降低电压谐波失真

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Design of stand-by generators for non-linear loads

The author discusses the causes of the problems and the design changes possible in the generator to minimize the voltage waveform distortion. A method for calculating the additional losses in the generator due to harmonic currents is presented. The discussion refers specifically to generators of the salient pole type in the 10-2000 kW range, but the general principles apply to all types of rotating field machines. Optimum generator design depends on the system connection. For generators connected directly to balanced line to neural loads, a 2/3 pitch machine with low zero sequence reactance minimizes triplen voltage harmonic distortion. For balanced three-phase loads, lower subtransient reactances and, consequently, lower voltage harmonic distortion can be obtained by using a longer coil pitch.<>

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Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting

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