| 引用本文: | 刘天舒,苏昊,潘超.交直流混杂环境下三相变压器绕组振动研究[J].电力系统保护与控制,2020,48(8):61-68. |
| LIU Tianshu,SU Hao,PAN Chao.Research on winding vibration of a three-phase transformer under an AC/DC hybrid environment[J].Power System Protection and Control,2020,48(8):61-68 |
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| 摘要: |
| 针对三相变压器在交直流混杂环境下的直流扰动问题，研究其绕组振动特性。建立Y/D变压器直流入侵状态方程，通过电磁耦合迭代辨识绕组电流，利用振动谐响应模型分析绕组振动。仿真计算变压器在不同运行方式下的直流偏磁电磁特性，研究不同直流扰动时绕组电流的变化及其振动特性，同时将不同条件下的绕组振动情况进行对比并总结规律。搭建三相变压器动模实验平台，开展380 V变压器空载和负载直流扰动实验，获取绕组电流与振动信息。利用实验数据验证仿真结果的正确性。 |
| 关键词: 交直流混杂 Y/Δ变压器 绕组振动 谐响应 动模实验 |
| DOI：10.19783/j.cnki.pspc.190652 |
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| 基金项目:国家自然科学基金项目资助(51507027);吉林省科技发展计划项目资助(20190303007SF) |
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| Research on winding vibration of a three-phase transformer under an AC/DC hybrid environment |
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LIU Tianshu,SU Hao,PAN Chao
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(Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education (Northeast Electric Power University), Jilin 132012, China)
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| Abstract: |
| Winding vibration characteristics of a three-phase transformer with respect to the DC disturbance problem are studied under AC/DC hybrid operation. The DC invasion state equation of a Y/Δ transformer is established, and the winding current is identified through electromagnetic coupling iteration while the winding vibration is analyzed by a vibration harmonic response model. The DC biased electromagnetic characteristics of the transformer under different operation modes are simulated and calculated to examine the variation of winding current and its vibration characteristics under different DC disturbances. At the same time, the winding vibration under different conditions is compared and the rules are summarized. A dynamic model test platform for the three-phase transformer is built, and a DC disturbance experiment of 380 V transformer under no-load and load operation is carried out to obtain winding current and vibration information. The simulation result is verified by experimental data. This work is supported by National Natural Science Foundation of China (No. 51507027) and Science and Technology Development Plan Project of Jilin Province (No. 20190303007SF). |
| Key words: AC/DC hybrid Y/Δ transformer winding vibration harmonic response dynamic model experiment |
