配电网串联补偿线路铁磁谐振风险评估
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摘要
通过对影响串联补偿线路发生铁磁谐振的因素的分析,选取激发铁磁谐振产生的主要故障类型和影响因素作为评价对象,构建评价指标体系。以铁磁谐振的影响因素建立判断矩阵,计算各影响因子的权重,并结合线路防振措施提出防护系数的概念,确立评价模型进行综合分析,计算线路铁磁谐振发生的概率,从而实现串联补偿线路铁磁谐振的风险评估。最后,通过案例分析验证了方法的正确性和可行性,可以更准确、可靠地对串联补偿线路发生铁磁谐振的风险进行评估。方法对串补线路铁磁谐振的抑制措施选定具有重要的指导意义,有效避免铁磁谐振的发生。
The factors of affecting ferromagnetic resonance occurred in series compensation line of distribution network were analyzed.The main failure types and influence factors generated by ferromagnetic resonance were selected as the evaluation objects to construct the system of evaluation index.The influence factors of ferromagnetic resonance were used to construct the judgement matrix and calculate the weight of each influence factor.And the conception of protection coefficient was proposed combining with the anti-vibration measures of the line.Then the evaluation models were established for comprehensively analyzing and calculating the probability of occurrence of line ferromagnetic resonance.Thereby the risk assessment of the ferromagnetic resonance was achieved in the series compensation line.It is testified by an instance that the method is correct and feasible.The selection of the suppression measures for ferromagnetic resonance of the series-compensated line has important guiding significance and it can effectively avoid the occurrence of ferromagnetic resonance.
The factors of affecting ferromagnetic resonance occurred in series compensation line of distribution network were analyzed.The main failure types and influence factors generated by ferromagnetic resonance were selected as the evaluation objects to construct the system of evaluation index.The influence factors of ferromagnetic resonance were used to construct the judgement matrix and calculate the weight of each influence factor.And the conception of protection coefficient was proposed combining with the anti-vibration measures of the line.Then the evaluation models were established for comprehensively analyzing and calculating the probability of occurrence of line ferromagnetic resonance.Thereby the risk assessment of the ferromagnetic resonance was achieved in the series compensation line.It is testified by an instance that the method is correct and feasible.The selection of the suppression measures for ferromagnetic resonance of the series-compensated line has important guiding significance and it can effectively avoid the occurrence of ferromagnetic resonance.
引文
[1] 高剑,刘溪,李帅,等.基于串联补偿技术的配电网低电压治理[J].中国电业(技术版),2016(3):33-36.
[2] 杨波.串联补偿技术在10 kV配电网(农网)中的应用性研究与分析[D].北京:华北电力大学(北京),2017.
[3] 卓谷颖.改善配网电压质量的固定串补技术研究[D].杭州:浙江大学,2013.
[4] 熊实宪,梁晓.35 KV输电线路串联补偿的调压效果和线路谐振及其工业试验[J].江西电力,1994(4):7-10.
[5] 李成,吴谦,胡满.风险综合评价中指标权重确定方法对比研究[J].石油工业技术监督,2016,32(1):50-53,57.
[6] 杨学强,李文俊,岳勇.综合评价指标权重确定方法[J].装甲兵工程学院学报,2015,29(1):101-105.
[7] 常方圆.基于隐马尔科夫模型的配电网铁磁谐振过电压风险预警方法研究[D].北京:中国电力科学研究院,2014.
[8] 黎佳,王鹏飞,陈小民,等.基于主成分分析的变压器状态量权重方法研究[J].陕西电力,2017,45(2):69-72,81.
[9] 詹骥文.智能配电网健康状态综合评价方法研究[D].南昌:华东交通大学,2015.
[10] 王盛阳,徐军元,周浩.10 kV配电网铁磁谐振抑制措施的仿真研究[J].能源工程,2016(4):7-11,30.
[11] 张刚.基于快速开关型10 KV长线路的纵向补偿装置研究及应用[D].济南:山东大学,2014.
[12] 徐建军.铁磁谐振过电压及其抑制措施的研究[D].西安:西安科技大学,2014.
[13] 庞吉年.配电网谐振过电压故障分析与抑制措施研究[D].南京:东南大学,2016.
[2] 杨波.串联补偿技术在10 kV配电网(农网)中的应用性研究与分析[D].北京:华北电力大学(北京),2017.
[3] 卓谷颖.改善配网电压质量的固定串补技术研究[D].杭州:浙江大学,2013.
[4] 熊实宪,梁晓.35 KV输电线路串联补偿的调压效果和线路谐振及其工业试验[J].江西电力,1994(4):7-10.
[5] 李成,吴谦,胡满.风险综合评价中指标权重确定方法对比研究[J].石油工业技术监督,2016,32(1):50-53,57.
[6] 杨学强,李文俊,岳勇.综合评价指标权重确定方法[J].装甲兵工程学院学报,2015,29(1):101-105.
[7] 常方圆.基于隐马尔科夫模型的配电网铁磁谐振过电压风险预警方法研究[D].北京:中国电力科学研究院,2014.
[8] 黎佳,王鹏飞,陈小民,等.基于主成分分析的变压器状态量权重方法研究[J].陕西电力,2017,45(2):69-72,81.
[9] 詹骥文.智能配电网健康状态综合评价方法研究[D].南昌:华东交通大学,2015.
[10] 王盛阳,徐军元,周浩.10 kV配电网铁磁谐振抑制措施的仿真研究[J].能源工程,2016(4):7-11,30.
[11] 张刚.基于快速开关型10 KV长线路的纵向补偿装置研究及应用[D].济南:山东大学,2014.
[12] 徐建军.铁磁谐振过电压及其抑制措施的研究[D].西安:西安科技大学,2014.
[13] 庞吉年.配电网谐振过电压故障分析与抑制措施研究[D].南京:东南大学,2016.