| 引用本文: | 李朋,张保会,郝治国,褚云龙,施明会.基于回路平衡方程的变压器绕组变形在线监测研究[J].电力自动化设备,2006,(5):11-14,27 |
| .Study on on-line monitoring of transformer winding deformation based on equivalent circuit equilibrium equation[J].Electric Power Automation Equipment,2006,(5):11-14,27 |
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| 摘要: |
| 电力变压器运行过程中发生绕组变形将会导致绕组漏感参数发生变化,提出用变压器等值回路平衡方程进行绕组参数辨识的方法。以双绕组单相及三相变压器绕组回路平衡方程为基础,采用最小二乘算法估算原副边绕组电阻、漏电感参数,进而实现变压器绕组变形的在线监测,并针对变压器稳态回路方程模型的不可辨识性提出新的解决方法。仿真和动模试验表明该方法的合理性和有效性。 |
| 关键词: 绕组变形,回路平衡方程,参数辨识,漏电感,在线监测 |
| DOI： |
| 分类号:TM77 |
| 基金项目:中国科学院资助项目 |
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| Study on on-line monitoring of transformer winding deformation based on equivalent circuit equilibrium equation |
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LI Peng ZHANG Bao-hui HAO Zhi-guo CHU Yun-long SHI Ming-hui
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| Abstract: |
| Transformer winding deformation occurred during operation may cause the change of leak inductance. A transformer winding deformation identification method is proposed,which is basded on the equivalent circuit equation and applies the least square algorithm for parameter estimation. With the dual-winding single-phase and three-phase transformer equivalent circuit equations as the foundation,the winding parameters including the resistance and leak inductance of the primary and secondary windings are estimated for on-line transformer winding deformation monitoring. A new solution is put forward for the irrecognizability of transformer stable state circuit equation model. Simulation and test indicate the method rational and effective. The project is supported by the National Natural Science Foundation of China(50577050). |
| Key words: winding deformation,equivalent circuit equilibrium equation,parameter identification,leak inductance,on-line monitoring |
