电机与控制应用
電機與控製應用
전궤여공제응용
ELECTRIC MACHINES & CONTROL APPLICATION
2015年
3期
51-55
,共5页
双馈风力发电机%次同步振荡%次同步谐振
雙饋風力髮電機%次同步振盪%次同步諧振
쌍궤풍력발전궤%차동보진탕%차동보해진
DFIG-based wind turbine%sub-synchronous oscillation%sub-synchronous resonance(SSR)
建立了包括轴系、变频控制器、串联电容在内的双馈风力发电系统模型，采用特征值分析法，计算了次同步谐振( SSR)振荡频率和参与因子，得出了与轴系扭振模态强相关的状态变量，并用时域仿真验证了串补度、风速对SSR的影响及在MATLAB/Simulink仿真平台进行验证。研究结果表明，串补度的改变将破坏SSR现象发生的条件，风速的变化对SSR现象没有影响。
建立瞭包括軸繫、變頻控製器、串聯電容在內的雙饋風力髮電繫統模型，採用特徵值分析法，計算瞭次同步諧振( SSR)振盪頻率和參與因子，得齣瞭與軸繫扭振模態彊相關的狀態變量，併用時域倣真驗證瞭串補度、風速對SSR的影響及在MATLAB/Simulink倣真平檯進行驗證。研究結果錶明，串補度的改變將破壞SSR現象髮生的條件，風速的變化對SSR現象沒有影響。
건립료포괄축계、변빈공제기、천련전용재내적쌍궤풍력발전계통모형，채용특정치분석법，계산료차동보해진( SSR)진탕빈솔화삼여인자，득출료여축계뉴진모태강상관적상태변량，병용시역방진험증료천보도、풍속대SSR적영향급재MATLAB/Simulink방진평태진행험증。연구결과표명，천보도적개변장파배SSR현상발생적조건，풍속적변화대SSR현상몰유영향。
A doubly-fed wind power generation system model including a shaft, a variable frequency controller, and a series capacitor compensation was established. Eigenvalue analysis was used to calculate the oscillation frequency and participation factors aiming to find the most strongly correlated state variables with shafting torsional vibration mode. Time-domain simulation was used to verify the impact of degree of series compensation, the wind speed on SSR. The results showed that changes in the degree of series compensation would break the conditions of SSR, changes in wind speed have no effect on SSR.
