CAJ | 학술논문

为有效地使用光伏能源,介绍了光伏并网控制系统的构成和探讨了逆变器的控制方法. 在MATLAB/SIMULINK环境下,建立三相光伏逆变器控制系统仿真模型,采用双回路的电压电流控制策略,对采集的数据进行CLARK和PARK坐标变换,然后经过经典的PI调节后送入相应的控制芯片来产生SPWM波形对逆变桥开关进行控制,使系统能够及时检测电网波动,断开逆变器与电网的连接.,通过仿真试验结果证明了该控制算法的正确性与可行性,验证了这种双回路控制策略的有效性.
위유효지사용광복능원,개소료광복병망공제계통적구성화탐토료역변기적공제방법. 재MATLAB/SIMULINK배경하,건립삼상광복역변기공제계통방진모형,채용쌍회로적전압전류공제책략,대채집적수거진행CLARK화PARK좌표변환,연후경과경전적PI조절후송입상응적공제심편래산생SPWM파형대역변교개관진행공제,사계통능구급시검측전망파동,단개역변기여전망적련접.,통과방진시험결과증명료해공제산법적정학성여가행성,험증료저충쌍회로공제책략적유효성.
In order to effectively use PV, this paper introduced the constitution of photovoltaic grid -connected control system and discussed the control method of inverter. It is the method that adopts the simulation model of three-phase photovoltaic inverter control system established in MATLAB/SIMULINK and double-loop voltage-current control strategy to make CLARK and PARK coordinate conversion on the acquired data so as to control in-verter bridge by SPWM wave form generated by the corresponding control chip after the typical PI regulation, which enables the system to detect network oscillation in time and to break the link between inverter and network. Final-ly, the result of simulation proved the correctness and feasibility of the control algorithm.