基于卡尔曼滤波算法对电网频率进行检测和预测
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摘要
频率偏移严重极大地降低电网运行的可靠性,对电力用户用电质量造成损害。此外,频率是电力系统是否安全可靠运行的重要评判标准之一,为此本文主要是采用基于卡尔曼滤波原理,提出综合检测和预测电网频率的技术,并用于实际电网频率检测和预测中,最后通过实例仿真验证证明了该方案的可行性。这对于提高我国电力系统运行的稳定性具有重要的作用和工程应用价值。
The frequency offset severe greatly reducing the reliability of power grid can cause electricity quality of power users by damage. Moreover,the frequency is an important criterion of power system is safe and reliable operation,so this paper is mainly based on the principle of using the Kalman filter,put forward a comprehensive grid frequency detection and prediction techniques,and used for the actual grid frequency detection and prediction,Finally,simulation examples demonstrate the feasibility of the scheme. It has an important role and value engineering to improve the stability of power system operation.
The frequency offset severe greatly reducing the reliability of power grid can cause electricity quality of power users by damage. Moreover,the frequency is an important criterion of power system is safe and reliable operation,so this paper is mainly based on the principle of using the Kalman filter,put forward a comprehensive grid frequency detection and prediction techniques,and used for the actual grid frequency detection and prediction,Finally,simulation examples demonstrate the feasibility of the scheme. It has an important role and value engineering to improve the stability of power system operation.
引文
[1]张恒旭,李常刚,刘玉田,等.电力系统动态频率分析与应用研究综述[J].电工技术学报,2010,25(11):169-176.
[2]潘迪夫,刘辉,李燕飞.基于时间序列分析和卡尔曼滤波算法的风电场风速预测优化模型[J].电网技术,2008,32(7):82-86.
[3]周启帆,张海,王嫣然,等.一种基于冗余测量的自适应卡尔曼滤波算法[J].航空学报,2015,36(5):1596-1605.
[4]李为,李一平,封锡盛,等.基于卡尔曼滤波预测的无偏量测转换方法[J].控制与决策,2015,(2):229-234.
[5]刘育明,姚陈果,孙才新,等.基于电网频率的数字录音真伪鉴别研究[J].仪器仪表学报,2013,34(6):1434-1440.
[6]孟建辉,石新春,王毅,等.改善微电网频率稳定性的分布式逆变电源控制策略[J].电工技术学报,2015,30(4):70-79.
[7]郭钰锋,于达仁,赵婷,等.电网频率的非正态概率分布特性[J].中国电机工程学报,2008,28(7):26-31.
[8]郑为进,陈宇晨,宋萌,等.自动跟踪电网频率SPWM系统的设计[J].仪表技术与传感器,2014,(6):120-122.
[2]潘迪夫,刘辉,李燕飞.基于时间序列分析和卡尔曼滤波算法的风电场风速预测优化模型[J].电网技术,2008,32(7):82-86.
[3]周启帆,张海,王嫣然,等.一种基于冗余测量的自适应卡尔曼滤波算法[J].航空学报,2015,36(5):1596-1605.
[4]李为,李一平,封锡盛,等.基于卡尔曼滤波预测的无偏量测转换方法[J].控制与决策,2015,(2):229-234.
[5]刘育明,姚陈果,孙才新,等.基于电网频率的数字录音真伪鉴别研究[J].仪器仪表学报,2013,34(6):1434-1440.
[6]孟建辉,石新春,王毅,等.改善微电网频率稳定性的分布式逆变电源控制策略[J].电工技术学报,2015,30(4):70-79.
[7]郭钰锋,于达仁,赵婷,等.电网频率的非正态概率分布特性[J].中国电机工程学报,2008,28(7):26-31.
[8]郑为进,陈宇晨,宋萌,等.自动跟踪电网频率SPWM系统的设计[J].仪表技术与传感器,2014,(6):120-122.