CAJ | 학술논문

根据风电机组停运的特点，把其分为电磁系统和机械系统。考虑电网运行工况对风机停运的影响建立了基于电网电压和频率的电磁系统的故障率模型；考虑天气对风机停运的影响建立了基于风速的机械系统的故障率模型，综合上述两方面，得到计及运行工况的风电机组故障率模型。在Matlab中对某1.5 MW风机进行仿真，给出了不同运行工况下风电机组的故障率。此模型能够反映电网运行条件和外界风速对风电机组故障率的影响，能够如实表征风电机组实时运行的安全可靠性水平。
근거풍전궤조정운적특점，파기분위전자계통화궤계계통。고필전망운행공황대풍궤정운적영향건립료기우전망전압화빈솔적전자계통적고장솔모형；고필천기대풍궤정운적영향건립료기우풍속적궤계계통적고장솔모형，종합상술량방면，득도계급운행공황적풍전궤조고장솔모형。재Matlab중대모1.5 MW풍궤진행방진，급출료불동운행공황하풍전궤조적고장솔。차모형능구반영전망운행조건화외계풍속대풍전궤조고장솔적영향，능구여실표정풍전궤조실시운행적안전가고성수평。
According to the characteristics of outage, the wind turbine is divided into two parts, namely the electromagnetic system and the machinery system. The failure rate model of electromagnetic system based on the grid voltage and frequency is established considering the impact of the grid operating conditions on the wind turbine outage, and the failure rate model of machinery system based on the wind speed is established considering the impact of the weather on the wind turbine outage, then the wind turbine outage rate model based on operating conditions of grid and weather can be obtained. The simulation of 1.5 MW wind turbine is carried out in Matlab, and the outage rate of wind turbine under diffident operation conditions is given. The model can reflect the effect of wind turbine outage rate on the grid operating conditions and external wind speed and can accurately characterize the level of safety and reliability of the wind turbine under real-time operation.