CAJ | 학술논문

为减小微电网对通信系统的依赖性，实现分布式电源和负荷的即插即用，结合微电网不同运行模式，研究了微电网对等控制策略。在对等控制策略中，分布式电源采用下垂控制，调节分布式电源的输出电压和频率；下垂控制器中的P－f和Q－U具有线性的下垂特性。建立了对等控制策略下的微电网运行模型，分析了并网和孤岛运行模式之间切换、孤岛模式下切／增负荷及孤岛模式下切／增微电源三种运行状况下的微电网运行特性，基于Matlab／Simulink仿真结果，研究了微电网母线电压、DG频率和功率的变化规律，验证了控制策略的正确性和可行性。
위감소미전망대통신계통적의뢰성，실현분포식전원화부하적즉삽즉용，결합미전망불동운행모식，연구료미전망대등공제책략。재대등공제책략중，분포식전원채용하수공제，조절분포식전원적수출전압화빈솔；하수공제기중적P－f화Q－U구유선성적하수특성。건립료대등공제책략하적미전망운행모형，분석료병망화고도운행모식지간절환、고도모식하절／증부하급고도모식하절／증미전원삼충운행상황하적미전망운행특성，기우Matlab／Simulink방진결과，연구료미전망모선전압、DG빈솔화공솔적변화규률，험증료공제책략적정학성화가행성。
To reduce the dependency of the microgrid on the communication system and implement the plug-and-play for distributed generators ( DG) and loads, the peer-to-peer control strategies in the microgrid were studied by consid-ering the different operation modes.The droop control method of the DG was adopted in the peer-to-peer control strat-egy .The output voltage and frequency of the DG were regulated according to the linear droop characters of P-f and Q-U in the droop controller.The operation model of the micro-grid was established based on the peer-to-peer control strategy.The operation characteristics of the microgrid were analyzed respectively in the three operation modes: the mode switch between the grid-connected operation and the islanding operation, the load changes in the islanding mode and the micro-power changes in the islanding mode.Based on the MATLAB/SIMULINK simulation results, the chan-ging laws of the bus voltage, DG frequency and power of the microgrid were studied and the correctness and feasibility of the peer-to-peer control strategy were verified.