CAJ | 학술논문

为提高独立光伏系统的供电可靠性和光伏利用率，需要合理配置光伏组件和储能系统的容量。根据光伏系统-储能联合运行的特点，考虑运行过程中储能能量的动态变化过程，以储能单元的技术特性为约束，提出以负荷缺电率(loss of power supply probability ， LPSP)和能量溢出比(energy excess percentage，EXC)为考核指标的光伏、储能容量的联合配置方法。在给定案例条件下，考虑了阀控铅酸电池、锂离子电池和全钒液流电池3种类型，分别对3种电池储能进行了容量配置，并以初始投资最小为目标，计算最优光储容量配置。结果表明，在相同配置情况下，采用全钒液流电池系统供电可靠性较高、经济性较好，而在满足指标要求下，采用阀控铅酸电池系统初始投资最小。
위제고독립광복계통적공전가고성화광복이용솔，수요합리배치광복조건화저능계통적용량。근거광복계통-저능연합운행적특점，고필운행과정중저능능량적동태변화과정，이저능단원적기술특성위약속，제출이부하결전솔(loss of power supply probability ， LPSP)화능량일출비(energy excess percentage，EXC)위고핵지표적광복、저능용량적연합배치방법。재급정안례조건하，고필료벌공연산전지、리리자전지화전범액류전지3충류형，분별대3충전지저능진행료용량배치，병이초시투자최소위목표，계산최우광저용량배치。결과표명，재상동배치정황하，채용전범액류전지계통공전가고성교고、경제성교호，이재만족지표요구하，채용벌공연산전지계통초시투자최소。
To enhance power supply reliability of stand-alone photovoltaic (PV) generation system and improve PV utilization, it is necessary to configure the capacity of PV modules and energy storage devices reasonably. Based on the feature of joint-operation of PV generation system with energy storage device and considering dynamic variation of stored energy during the joint operation, taking technical characteristics of energy storage unit as the constraint a joint configuration method of PV capacity and energy storage capacity, in which the loss of power supply probability (LPSP) and energy excess percentage (EXC) are taken as assessment indices, is proposed. Under the conditions of a given case, taking three kinds of batteries, namely the valve regulated lead acid battery (VRLAB), the lithium-ion battery and all-vanadium redox flow battery, into account, the capacity of the three kinds of batteries are respectively configured and taking the minimized initial investment as the objective, the optimized capacity configuration of PV modules and energy storage units is computed. Computation results show that under the same configuration a higher power supply reliability can be achieved by use of all-vanadium redox flow battery, however under the condition of satisfying the requirement of indices, the initial investment can be the minimum while the VRLAB is adopted.