电机与控制应用
電機與控製應用
전궤여공제응용
Electric Machines & Control Application
2015年
11期
62-66
,共5页
大型直驱风电系统%永磁同步电机%大惯量负载%负载转矩观测%电压前馈解耦
大型直驅風電繫統%永磁同步電機%大慣量負載%負載轉矩觀測%電壓前饋解耦
대형직구풍전계통%영자동보전궤%대관량부재%부재전구관측%전압전궤해우
large direct-drive wind power system%permanent magnet synchronous motor ( PMSM )%large inertia loads%load torque observer%voltage feed-forward decoupling
提出基于电压前馈解耦电流矢量控制策略,设计转动惯量在线辨识及负载转矩实时观测器,并将实时观测的负载转矩补偿于电流控制环,既消除耦合项的影响、减小电流跟踪误差,又加快了转速控制响应速度、进一步提高转速控制精度. 以2 MW永磁直驱风电机组作为研究对象,采用MATLAB/Simulink对所提控制策略与PI电流反馈解耦控制进行仿真对比,并对转动惯量在线辨识及负载转矩实时观测进行了仿真验证. 验证证明了所提策略的正确性、可行性和有效性.
提齣基于電壓前饋解耦電流矢量控製策略,設計轉動慣量在線辨識及負載轉矩實時觀測器,併將實時觀測的負載轉矩補償于電流控製環,既消除耦閤項的影響、減小電流跟蹤誤差,又加快瞭轉速控製響應速度、進一步提高轉速控製精度. 以2 MW永磁直驅風電機組作為研究對象,採用MATLAB/Simulink對所提控製策略與PI電流反饋解耦控製進行倣真對比,併對轉動慣量在線辨識及負載轉矩實時觀測進行瞭倣真驗證. 驗證證明瞭所提策略的正確性、可行性和有效性.
제출기우전압전궤해우전류시량공제책략,설계전동관량재선변식급부재전구실시관측기,병장실시관측적부재전구보상우전류공제배,기소제우합항적영향、감소전류근종오차,우가쾌료전속공제향응속도、진일보제고전속공제정도. 이2 MW영자직구풍전궤조작위연구대상,채용MATLAB/Simulink대소제공제책략여PI전류반궤해우공제진행방진대비,병대전동관량재선변식급부재전구실시관측진행료방진험증. 험증증명료소제책략적정학성、가행성화유효성.
Based on voltage feed-forward decoupling current vector control strategy, online identification of inertia and load torque observer were design in real time, and in the current control loop, which eliminated the load torque compensation reduces the current real-time observation of the effects of coupling term tracking error but also accelerate the speed control response speed, while further improving the speed control accuracy. With 2 MW permanent magnet direct-drive wind turbine as the research object, using MATLAB / Simulink for the text of the proposed control strategy and PI current feedback decoupling control simulation comparison, and online identification of inertia and load torque in real-time observation simulation verification, justify the feasibility and effectiveness of the proposed strategy.
