| 引用本文: | 马明晗,贺鹏康,李永刚,姜猛,武玉才.高压直流输电换相失败对带静偏心故障调相机的影响[J].电力自动化设备,2021,41(8): |
| MA Minghan,HE Pengkang,LI Yonggang,JIANG Meng,WU Yucai.Influence of commutation failure of HVDC transmission on synchronous condenser with static eccentric failure[J].Electric Power Automation Equipment,2021,41(8): |
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| 摘要: |
| 为了研究高压直流输电逆变器换相失败对带静偏心故障调相机的影响，首先以一台TTS-300-2型双水内冷调相机为研究对象，基于Simulink+Maxwell/Simplorer构建了含同步调相机的高压直流输电的场-路-网耦合模型，联合仿真得到不同静偏心率下调相机的气隙磁场。其次，分析了换相失败对不同静偏心率下调相机气隙磁通密度的影响，并采用麦克斯韦应力张量法计算发生换相失败前后转子受到的不平衡磁拉力。最后，采用非线性Newmark隐式积分法计算换相失败对不同静偏心率下调相机转子振动的影响。结果表明，换相失败使带静偏心故障调相机气隙磁场增大，转子所受磁拉力与振动幅值明显增大，并且其影响程度随调相机静偏心率的增大而增大。换相失败对带静偏心故障调相机的影响分析对解释机组异常振动、诊断静偏心故障有一定的参考价值。 |
| 关键词: 高压直流输电 同步调相机 换相失败 有限元分析 静偏心故障 不平衡磁拉力 |
| DOI：10.16081/j.epae.202107022 |
| 分类号:TM342;TM721.1 |
| 基金项目:国家自然科学基金资助项目(51777075)；河北省自然科学基金资助项目(E2020502064)；中央高校基本科研业务费专项资金资助项目(2021MS066) |
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| Influence of commutation failure of HVDC transmission on synchronous condenser with static eccentric failure |
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MA Minghan, HE Pengkang, LI Yonggang, JIANG Meng, WU Yucai
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State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China
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| Abstract: |
| To study the influence of commutation failure of HVDC inverters on SC(Synchronous Condenser) with static eccentric failure, firstly a TTS-300-2 dual internal water-cooled SC is used as the research object, the field-circuit-network coupling model of HVDC transmission with SC is constructed based on Simulink+Maxwell/Simplorer, and the air-gap magnetic flux field of SC with different static eccentricity is obtained by co-simulation. Secondly, the influence of commutation failure on the air-gap magnetic flux density of the SC with different static eccentricity is analyzed, and the Maxwell stress tensor method is used to calculate the unbalanced magnetic tension of the rotor before and after the commutation failure. Finally, the nonlinear Newmark implicit integration method is adopted to calculate the influence of the commutation failure on the rotor vibration of SC with different static eccentricity. The results show that the commutation failure increases the air-gap magnetic flux field of SC with static eccentric failure, and the magnetic tension and vibration amplitude of rotor increase significantly. The influence of commutation failure increases with the increase of static eccentricity. The analysis of the influence of the commutation failure on SC with static eccentric failure has certain reference value for explaining the abnormal vibration of SC and diagnosing the static eccentric failure. |
| Key words: HVDC transmission synchronous condenser commutation failure finite element analysis static eccentric failure unbalanced magnetic tension |
