Control strategy and regulation characteristics of variable speed pumped storage unit with full-size converter

被引：0

作者：

Ding L. ^{[1
,2
]}

Shi H. ^{[1
,2
]}

Chen G. ^{[1
,2
]}

Zhou W. ^{[1
,2
]}

Jiang H. ^{[3
]}

Xue Y. ^{[4
]}

Yang B. ^{[4
]}

机构：

[1] State Grid Sichuan Electric Power Research Institute, Chengdu

[2] Power Internet of Things Key Laboratory of Sichuan Province, Chengdu

[3] NARI Group, State Grid Electric Power Research Institute） Co.，Ltd., Nanjing

[4] Power China Hydropower Development Group Co.，Ltd., Chengdu

来源：

Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2024年 / 44卷 / 03期

关键词：

coordinated control strategy; regulation characteristics; start-up commissioning; variable speed pumped storage unit with full-size converter;

D O I：

10.16081/j.epae.202306015

中图分类号：

学科分类号：

摘要：

In the coordinated control of variable speed pumped storage unit with full-size converter（FSCVSPSU），the fast power control strategy is often used，in which the converter controls power and the governor controls frequency（rotor-speed）. The influence of fast power regulation on frequency safety and unit efficiency is ignored，and the control mode is single. The oscillation characteristics and power-frequency response characteristics of multiple control modes of the unit are analyzed. A coordinated control strategy combining fast frequency control and fast power control under generating conditions is proposed，and the control strategy of constant guide vane opening and variable speed under pumping condition is proposed. A commissioning method combining conventional test and performance optimization test is designed and applied to the start-up commissioning of the first FSC-VSPSU in China. The effectiveness of control strategy and commissioning method is verified. The field test results show that the uncoordinated control between the governor and the converter is easy to cause unit oscillation. While after the proposed coordination strategy is adopted，the unit operates safely and efficiently，and has the ability to adjust active and reactive power quickly in 100 milliseconds. © 2024 Electric Power Automation Equipment Press. All rights reserved.

引用

页码：166 / 171and179

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