CAJ | 학술논문

针对光伏逆变器稳态模型，分析了不同结构逆变器运行控制特点和无功调节能力。构建逆变器电压调整模式和系统无功补偿模式的光伏电站无功控制策略，该方案在发电同时利用其本身自有无功调节能力来作为无功补偿设备的补充以减少无功补偿设备投入容量。在该方案中根据电网需求无功得出光伏电站 P -λ运行关系曲线，通过验证证明该策略在满足系统无功需求的同时降低了电能损耗，增加经济效益。最后以某光伏电站实际案例搭建 psat 仿真对该控制策略的有效性和实用性进行了评价。
침대광복역변기은태모형，분석료불동결구역변기운행공제특점화무공조절능력。구건역변기전압조정모식화계통무공보상모식적광복전참무공공제책략，해방안재발전동시이용기본신자유무공조절능력래작위무공보상설비적보충이감소무공보상설비투입용량。재해방안중근거전망수구무공득출광복전참 P -λ운행관계곡선，통과험증증명해책략재만족계통무공수구적동시강저료전능손모，증가경제효익。최후이모광복전참실제안례탑건 psat 방진대해공제책략적유효성화실용성진행료평개。
A PV inverter steady - state model is built to analyze the operation control relationship of inverter and the reactive power regulation of different structures inverters. A reactive power control strategy that priority to reactive power compensation system model and considered with the voltage adjustment model is given. PV power station makes use of its spare reactive power ability as a supplement for reactive power compensation equipment to reduce it’s capac-ity. The control strategy of compensating reactive power grid needs to analyzed PV power station P - λ curve. Through the verification verificate that in meet the demand of system reactive power while reduce the power loss and increase e-conomic benefits. Based on a PV power station operation procedures a simulation of past have been set up to evaluate the effectiveness and practicality.