| 引用本文: | 杨汾艳,余超耘,刘正富,徐雨哲,徐政.基于实际工程的变压器改进J-A模型研究[J].电力自动化设备,2018,(4): |
| YANG Fenyan,YU Chaoyun,LIU Zhengfu,XU Yuzhe,XU Zheng.Research on modified J-A model of transformer based on practical engineering[J].Electric Power Automation Equipment,2018,(4): |
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| 摘要: |
| 为了能够深入开展励磁涌流对直流输电系统影响的机理性研究，提出了一种基于PSCAD/EMTDC仿真软件的考虑磁滞特性的变压器模型建模方法，该建模方法采用改进J-A模型来描述变压器磁滞特性，具有物理意义清晰、参数较少等优势。介绍了常用的变压器电磁仿真模型建模方法，并给出了所提建模方法的详细步骤和算法设计。在PSCAD/EMTDC仿真平台上建立了牛从直流输电系统的仿真模型，并结合牛从直流的实际录波波形进行了参数辨识，最终利用PSCAD复现了牛从直流乙线换流变压器空充过程中甲线直流电流的录波波形，验证了所建模型的合理性和有效性。 |
| 关键词: 直流输电 变压器空充 励磁涌流 参数辨识 J-A模型 磁滞曲线 变压器 建模 |
| DOI：10.16081/j.issn.1006-6047.2018.04.028 |
| 分类号:TM721.1;TM42 |
| 基金项目:广东电网有限责任公司科技项目(GDKJQQ20152039) |
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| Research on modified J-A model of transformer based on practical engineering |
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YANG Fenyan1, YU Chaoyun1, LIU Zhengfu1, XU Yuzhe2, XU Zheng2
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1.Electric Power Research Institute of Guangdong Power Grid Co.,Ltd.,Guangzhou 510080, China;2.College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
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| Abstract: |
| In order to research the theory about the influence of inrush current on HVDC system, a new modeling method considering hysteresis characteristic is proposed for transformer based on PSCAD/EMTDC. This modeling method describes the hysteresis characteristic using the theory of modified J-A model, which has the advantages of clear physical meaning and fewer parameters. The commonly-used electromagnetic simulation modeling method for transformer is introduced, and the detailed modeling method and the algorithm design are given. A simulation model of NiuCong HVDC system is built in PSCAD/EMTDC simulation platform, and the parameter identification is carried out combined with the recorded waveforms of NiuCong HVDC system. The waveform replication of the DC current in NiuCong HVDC transmission line during the energizing of no-load transformers is realized finally, which verifies the validity and rationality of the established transfomer model. |
| Key words: DC power transmission energizing of no-load transformer inrush current parameter identification J-A model hysteresis curve electric transformers model buildings |
