工业用双馈发电机的无功功率控制方法  

Reactive power control method of industrial doubly-fed generator

作　　者：胡春林 谭振国 曾佳佳 邓睿 李军 HU Chunin;TAN Zhenguo;ZENG Jiajia;DENG Rui;LI Jun(Production&Operation Center,Wuling Power Corporation Ltd.,Changsha 410000,China;Production&Operation Center Produce&Technology Department,Wuling Power Corporation Ltd.,Changsha 410000,China;New Energy Branch Xinshao Longshan Wind Farm,Wuling Power Corporation Ltd.,Changsha 410000,China)

机构地区：[1]五凌电力有限公司长沙生产运营中心,湖南长沙410000 [2]五凌电力有限公司长沙生产运营中心生产技术部,湖南长沙410000 [3]五凌电力有限公司新能源分公司新邵龙山风电场,湖南长沙410000

出　　处：《电子设计工程》2024年第15期86-89,94,共5页Electronic Design Engineering

摘　　要：将无功功率注入工业用双馈发电机时,易出现电压不对称的现象,导致电压及电流发生波动。为了解决上述问题,提出一种新的工业用双馈发电机无功功率控制方法。计算发电机机端正序电压矢量和负序电压矢量的幅值,求出正序无功功率和定子侧无功功率,根据计算结果进行无功功率分配。分析波动状态计算定子电流,并获取三相电压峰值两端极值的函数幅值关系,实现无功功率的控制。实验结果表明,研究的无功功率控制方法四次工作电流峰值均为4800 A,能够很好解决电压和电流波动问题。When reactive power is injected into an industrial doubly fed generator,the phenomenon of voltage asymmetry is easy to occur,resulting in fluctuations in voltage and current.In order to solve the above problems,a new reactive power control method for industrial doubly-fed generators is proposed.Calculate the amplitude of positive sequence voltage vector and negative sequence voltage vector at the generator terminal,calculate the positive sequence reactive power and stator side reactive power,and distribute reactive power according to the calculation results.The fluctuation state is analyzed to calculate the stator current,and the function amplitude relationship between the extreme values of three-phase voltage peak value at both ends is obtained to realize the control of reactive power.The experimental results show that the peak value of the four working currents of the reactive power control method studied is 4800 A,which can solve the problem of voltage and current fluctuations well.

关 键 词：工业发电机 双馈发电机 无功功率 功率控制 

分 类 号：TM470[电气工程—电器] TN102[电子电信—物理电子学]