Steady-state Characteristics of Multi-phase Permanent Magnet Synchronous Generator with Reactive Power Feeding Windings

被引：0
|
作者：
Zhang S. [1 ]
Zeng X. [1 ]
Wei M. [1 ]
Liu Y. [1 ]
机构：
[1] School of Electrical Engineering, Xi'an Jiaotong University, Xi'an
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2019年 / 43卷 / 08期
基金：
中国国家自然科学基金;
关键词：
High voltage permanent magnet direct-drive wind turbine; Multi-phase generator modeling; Multi-phase permanent magnetic synchronous generator; Reactive power compensation;
D O I：
10.7500/AEPS20180918001
中图分类号：
学科分类号：
摘要：
For ultra-high-power offshore wind turbines of 5 MW or above, the current medium and low-voltage technology solutions make generators and converters withstand large currents, which causes the low efficiency of wind power systems. A structure of a high-voltage permanent magnet multi-phase generator with reactive power feed windings is briefly described. This new structure can directly realize high-voltage direct current (HVDC) by using series unipolar converters with simple topology. Besides, the injection of reactive power into the generator with reactive feed windings can realize the decoupling control of the generator excitation and torque. In addition, the new technical solution can also be used to inhibition the peak short-circuit current when the HVDC transmission line is short-circuit. The paper focuses on the steady state characteristics of the generator. Firstly, the mathematical model of the stator multi-winding synchronous generator is deduced, and then the steady-state characteristics of the generator in the new technical scheme are analyzed by numerical calculation method using related parameters of a 6.7 MVA wind turbine. © 2019 Automation of Electric Power Systems Press.
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页码：117 / 123
页数：6
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