动态无功补偿装置在电网线损修复中的应用研究

Application of dynamic reactive power compensation device in power line loss repair

为了提高电网线损修复能力,提出基于动态无功补偿装置自动化检测的电网线损修复方法,采用动态无功补偿进行装置电网线损的输出动态参量采集,以电网线损的频率耦合特性以及直流母线的电容差异特征为约束参量,构建电网线损的动态无功补偿检测模型,采用多频率耦合调节方法进行电网线损的动态无功补偿控制,提取电网线损的谐波谐振特征量,根据电网的锁相环、直流母线的电流突变等差异特征量,结合动态无功补偿装置进行电网线损修复和优化检测。仿真结果表明,采用该方法进行电网线损修复和检测的自适应性较好,判断结果准确可靠,提高了电网线损修复能力。

In order to improve the ability of power grid line loss repair,a power grid line loss repair method based on automatic detection of dynamic reactive power compensation device is proposed,and the dynamic reactive power compensation device is used to collect the output dynamic parameters of power grid line loss.Taking the frequency coupling characteristics of power grid line loss and the capacitance difference of DC bus as constraint parameters,the dynamic reactive power compensation detection model of power grid line loss is constructed,and the dynamic reactive power compensation control of power grid line loss is carried out by using multi-frequency coupling regulation method.The harmonic resonance characteristics of power grid line loss are extracted.According to the phase-locked loop of power grid and the current mutation of DC bus,the dynamic reactive power compensation device is combined to repair and optimize the line loss of power grid.The simulation results show that the method has good adaptability for line loss repair and detection,and the judgment results are accurate and reliable,and the ability of line loss repair is improved.