CAJ | 학술논문

根据户用型光伏发电系统的特点与要求，在扰动观察法的基础上引进了自适应预测的方法以提高最大功率点跟踪（MPPT）的跟踪速度。根据户用型安全机制、功率密度、输入低压大电流等特点，采用推挽正激电路作为DC／DC变换器的主电路，详细分析了其电路结构与工作原理，建立了数学模型。实验表明该方案减小了电路损耗，提高了MPPT的跟踪速度和精确性，具有较好的实际应用价值。
근거호용형광복발전계통적특점여요구，재우동관찰법적기출상인진료자괄응예측적방법이제고최대공솔점근종（MPPT）적근종속도。근거호용형안전궤제、공솔밀도、수입저압대전류등특점，채용추만정격전로작위DC／DC변환기적주전로，상세분석료기전로결구여공작원리，건립료수학모형。실험표명해방안감소료전로손모，제고료MPPT적근종속도화정학성，구유교호적실제응용개치。
This paper introduces a adaptive prediction algorithm to raise the tracking velocity of maximum power point tracking(MPPT) based on the perturbation observation method according to the characteristics and requirements of household-type photovoltaic power supply system. Accord- ing to the characteristics of household-type such as the safety mechnism,power density,input low voltage and large current, etc. , taking the push-pull forward circuit as the main circuit of DC/DC converter,this paper analyzes the circuit structure and operation principle in detail, establishes the math model. The experiment shows that the project minishes the circuit loss and raises the tracking velocity and accuracy of MPPT,has better practical application value.