CAJ | 학술논문

针对微源逆变器串联连接的微网系统，分析了光伏微源特性对串联型微网(series micro-grids，SMGs)系统电压稳定性的影响。首先分析了系统结构；其次建立了复杂环境条件下光伏阵列模型，讨论了各微源直流链电压与系统输出电压之间的关系；最后分析了微源特性对 SMGs 输出电压的影响机理，并研究了基于混合储能的稳定性控制策略。算例结果验证了该控制策略的有效性。
침대미원역변기천련련접적미망계통，분석료광복미원특성대천련형미망(series micro-grids，SMGs)계통전압은정성적영향。수선분석료계통결구；기차건립료복잡배경조건하광복진렬모형，토론료각미원직류련전압여계통수출전압지간적관계；최후분석료미원특성대 SMGs 수출전압적영향궤리，병연구료기우혼합저능적은정성공제책략。산례결과험증료해공제책략적유효성。
The influences of photovoltaic micro-source characteristics on voltage stability of the series micro-grids (SMGs), whose inverters are connected in series, are analyzed. Firstly the system architecture of SMGs is analyzed; then a photovoltaic array model under complex environment is established and the relations between output voltage of SMGs and micro-source dc link voltages are discussed; finally the influencing mechanism of micro-source characteristics on output voltage of SMGs is analyzed in detail, and a voltage stability control strategy of SMGs based on hybrid energy storage is researched. The validity of the proposed control strategy is verified by results of simulation and experiments.