[1]申洪明,宋璇坤,姚玉海,等.规模化电力电子装置接入对换流变保护策略的影响分析及对策研究[J].高压电器,2020,56(03):230-233,252.[doi:10.13296/j.1001-1609.hva.2020.03.034]
 SHEN Hongming,SONG Xuankun,YAO Yuhai,et al.Effect of Large-scale Power Electronic Equipment on Converter Transformer Protection Strategy and Countermeasure[J].High Voltage Apparatus,2020,56(03):230-233,252.[doi:10.13296/j.1001-1609.hva.2020.03.034]
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规模化电力电子装置接入对换流变保护策略的影响分析及对策研究()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第56卷
期数:
2020年03期
页码:
230-233,252
栏目:
技术讨论
出版日期:
2020-03-15

文章信息/Info

Title:
Effect of Large-scale Power Electronic Equipment on Converter Transformer Protection Strategy and Countermeasure
作者:
申洪明1 宋璇坤1 姚玉海2 杜 娜1 李铁臣1 邹 格1
(1. 国网经济技术研究院有限公司, 北京 102209; 2. 国网北京市电力公司电力科学研究院, 北京 100075)
Author(s):
SHEN Hongming1 SONG Xuankun1 YAO Yuhai2 DU Na1 LI Tiechen1 ZOU Ge1
(1. State Grid Economic and Technological Research Institute Co., Ltd., Beijing 102209, China; 2. State Grid Beijing Electric Research Institute, Beijing 100075, China)
关键词:
电力电子装置 换流变 差动保护 电流峰值
Keywords:
power electronic equipment converter transformer differential protection current peak value
DOI:
10.13296/j.1001-1609.hva.2020.03.034
摘要:
直流、新能源的大量接入,使得电网呈现出电力电子化特征。为了解决电力电子化装置大规模接入对现有换流变保护的影响问题,首先分析了现有换流变差动保护的适应性,然后研究了换流变两侧电流特征,最后提出了基于换流变两侧电流峰值构建新变压器的保护逻辑。新的保护方案在保证可靠性的基础上,同时能加快保护出口速度。基于PSCAD/EMTDC仿真结果验证了结论的正确性。
Abstract:
Power electronics dominated power system is forming gradually with the use of HVDC and new energy. In order to solve the effect of Power electronics dominated power system on transformer protection, the adaption of converter transformer differential protection is first analyzed. Then the characteristics of the current on both sides of the converter transformer are studied. Finally, the new protection logic of transformer based on the peak value of the current on both sides of the converter transformer is proposed. The new protection scheme can not only ensure the reliability, but also speed up the output protection. Simulation results based on PSCAD / EMTDC prove the conclusion to be correct.

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备注/Memo

备注/Memo:
收稿日期:2019-11-05; 修回日期:2020-02-07 基金项目:2018年国网公司科技指南项目资助(面向柔性直流接入的交流侧保护控制设计技术研究)。 Project Supported by the Science and Technology Guide Project of State Grid Corporation (Research on New Protection Control Technology for AC Side of Flexible DC System).申洪明(1988—),男,博士研究生,主要研究方向为电力系统保护与控制。 宋璇坤(1959—),女,教授级高工,主要研究方向为电力系统保护与控制。 姚玉海(1986—),男,博士研究生,主要研究方向为配电网控制。
更新日期/Last Update: 2020-03-15