CAJ | 학술논문

微电网是分布式发电的一个重要组成形式及发展方向。微电网在孤网情况下，常用单V/f主从控制模式，需要有较大容量的主控电源，并且整个系统对主电源依赖性过高。有鉴于此，提出了一种无需实时通信支持的自适应主从控制方式。在该方式下，多个具有功率调节能力的逆变电源均可稳定运行于V/f方式，共同承担功率平衡。通过数值仿真分析，验证了该控制方法的正确性和有效性。
미전망시분포식발전적일개중요조성형식급발전방향。미전망재고망정황하，상용단V/f주종공제모식，수요유교대용량적주공전원，병차정개계통대주전원의뢰성과고。유감우차，제출료일충무수실시통신지지적자괄응주종공제방식。재해방식하，다개구유공솔조절능력적역변전원균가은정운행우V/f방식，공동승담공솔평형。통과수치방진분석，험증료해공제방법적정학성화유효성。
Micro-grid is an important part and developing direction of distributed generation.In most circumstance of island mode,the Micro-grid operates in Master-slave mode,where only one master source controls the voltage and system frequency.The other slave sources output the active and reactive power as preset,so the master need high capacity,and the whole system is dependent on the master excessively.In order to overcome the shortcoming above,a self-adaptation master-slave control mode with no need of real-time communication is presented in this paper.As in this operation mode,all the inverters with redundant capacity will participate in V/f regulation,and fulfill the power balance all together.The feasibility and effectiveness of the new method are verified by simulation test.