Control strategy of generators in parallel of MVDC integrated power system

被引：0

作者：

Ji F. ^{[1
]}

Liu S.-P. ^{[1
]}

Liu L.-F. ^{[1
]}

Guo Y.-J. ^{[1
]}

机构：

[1] National Key Laboratory of Science and Technology on Vessel Integrated Power System, Naval University of Engineering, Wuhan

来源：

Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2021年 / 25卷 / 09期

关键词：

Double-channel signal source; Light load; MVDC integrated power system; Parallel connection; Rectifier generator;

D O I：

10.15938/j.emc.2021.09.003

中图分类号：

学科分类号：

摘要：

Aiming at the problem that the power distribution of multiphase rectifier generators of MVDC integrated power system with the traditional DC-side voltage-power droop excitation control strategy may get deteriorated under light load condition, an equivalent mathematical model of the multiphase rectifier generators was established, the mechanism of uneven power distribution was theoretically analyzed, an improved control strategy with proper voltage feedback signals based on the rates of generator loadings was introduced, a test bed for short-circuit performance analysis of the generators was constructed, and theoretical derivation, simulation calculation and experimental testing of DC-side short-circuit currents of generators in parallel were carried out. The comparison results show that adopting the input AC voltages for the excitation control under light load conditions achieves the proper output voltages of generators with light loads and the peak values of short-circuit currents are distributed in proportion, at the same time, the results verified effectiveness of the introduced strategy. © 2021, Harbin University of Science and Technology Publication. All right reserved.

引用

页码：17 / 25

页数：8

共 36 条

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