CAJ | 학술논문

由于风电输出功率具有较强的随机性，规模化风电场/群的并网对互联电网负荷频率控制提出了更高的要求。在<br>　　分析单一风电机组及规模化风电场有功输出特点的基础上，建立计及风电场/群有功输出的互联电网负荷频率控制模型。以广域相量测量系统为技术平台，建立基于模型预测控制的含规模化风电场/群互联电网的负荷频率分散预测控制模型。以典型双区域负荷频率控制模型为例，考虑不同风电渗透率情况。仿真研究结果表明，所提基于模型预测控制的负荷频率分散控制模型不但能够有效地跟踪风电输出功率的随机波动，维持系统频率及区域间交换功率在较小的范围内变化，并且控制效果明显优于常规PI型负荷频率控制器。
유우풍전수출공솔구유교강적수궤성，규모화풍전장/군적병망대호련전망부하빈솔공제제출료경고적요구。재<br>　　분석단일풍전궤조급규모화풍전장유공수출특점적기출상，건립계급풍전장/군유공수출적호련전망부하빈솔공제모형。이엄역상량측량계통위기술평태，건립기우모형예측공제적함규모화풍전장/군호련전망적부하빈솔분산예측공제모형。이전형쌍구역부하빈솔공제모형위례，고필불동풍전삼투솔정황。방진연구결과표명，소제기우모형예측공제적부하빈솔분산공제모형불단능구유효지근종풍전수출공솔적수궤파동，유지계통빈솔급구역간교환공솔재교소적범위내변화，병차공제효과명현우우상규PI형부하빈솔공제기。
Because of the fluctuations of wind power, the much higher request is put forward for the load frequency control (LFC). After analyzing the characteristic of the output of wind generator and wind farm, the LFC model with the consideration of the wind power fluctuations was developed firstly. Then the multivariable decentralized model predictive control (DMPC) was proposed for the design of the LFC controllers to be against the wind power fluctuations based on the wide area measurement system (WAMS). The effectiveness and robustness of the presented decentralized MPC based LFC (DMPC-LFC) schemes were investigated carrying out on a two area test system with high penetration of wind power under various disturbance scenarios. Finally, a comparison between the presented schemes and conventional PI-LFC controllers has been done to represent the advantages of the proposed LFC scheme. Simulation results demonstrate that the proposed DMPC-LFC control scheme can provide better control performance than the conventional PI-LFC scheme. The fluctuations of wind power can be tracked accurately by using the proposed DMPC-LFC control scheme, thus the system frequency can be maintained to its nominal.