气温影响下的电力系统低频振荡抑制技术  

Low frequency oscillation suppression technology in power systems under the influence of temperature

作　　者：应宇翔 毛亚刚 蒋丹青 虞亚杰 屠银潮 YING Yuxiang;MAO Yagang;JIANG Danqing;YU Yajie;TU Yinchao(Guodian Ningbo Wind Power Development Company,Ningbo 315000,China)

机构地区：[1]国电宁波风电开发有限公司,浙江宁波315000

出　　处：《电子设计工程》2024年第23期155-158,163,共5页Electronic Design Engineering

基　　金：浙江省科技厅项目(LGF21D050001);浙江省气象局项目(2018ZD07)。

摘　　要：气温变化会导致电力系统低频谐波传输波形频繁波动,影响电力系统的稳定供电。为维持电力系统供电能力的稳定性,提出一种气温影响下的电力系统低频振荡抑制技术。通过滤波处理低频振荡信号,联合电压与电流参数,计算气温影响下电力系统低频振荡系数。预测与低频振荡系数相关的补偿向量,通过求解电量信号抑制区域的方式,完成对气温影响下电力系统低频振荡抑制技术的研究。实验结果表明,所提方法成功减少了气温影响下低频谐波的频繁波动,使其在一个传输周期内只出现一次明显的波动性变化。Temperature changes can cause frequent fluctuations in the low frequency harmonic transmission waveform of the power system,affecting the stable power supply of the power system.To maintain the stability of the power supply capacity of the power system,a low frequency oscillation suppression technology for the power system under the influence of temperature is proposed.By filtering and processing low frequency oscillation signals,combined with voltage and current parameters,the low frequency oscillation coefficient of the power system under the influence of temperature is calculated.Predict the compensation vector related to the low frequency oscillation coefficient,and complete the research on low frequency oscillation suppression technology of power systems under the influence of temperature by solving the suppression area of electrical signal.The experimental results show that the proposed method successfully reduces the frequent fluctuations of low frequency harmonics under the influence of temperature,resulting in only one significant fluctuation change within a transmission cycle.

关 键 词：低频振荡抑制 滤波处理 补偿向量 信号抑制区域 传输波形 

分 类 号：TN01[电子电信—物理电子学]