CAJ | 학술논문

为有效降低独立风光发电系统中混合储能系统的费用成本,需要合理的优化配置储能系统容量.通过分析超级电容器和蓄电池的储能特性,提出一种基于该类混合储能系统的能量管理策略,并分析了此能量管理策略下的系统负荷缺电率(LPSP)的计算流程.建立了以全生命周期费用(LCC)理论为基础的储能装置年均费用为目标函数,以独立风光发电系统LPSP 等可靠性指标为约束条件的储能容量优化模型,并运用改进粒子群算法对优化问题进行求解.通过算例结果分析,表明所提出的能量管理策略能够更加充分地发挥两种储能元件的互补优势,有效降低储能系统成本.
위유효강저독립풍광발전계통중혼합저능계통적비용성본,수요합리적우화배치저능계통용량.통과분석초급전용기화축전지적저능특성,제출일충기우해류혼합저능계통적능량관리책략,병분석료차능량관리책략하적계통부하결전솔(LPSP)적계산류정.건립료이전생명주기비용(LCC)이론위기출적저능장치년균비용위목표함수,이독립풍광발전계통LPSP 등가고성지표위약속조건적저능용량우화모형,병운용개진입자군산법대우화문제진행구해.통과산례결과분석,표명소제출적능량관리책략능구경가충분지발휘량충저능원건적호보우세,유효강저저능계통성본.
In order to reduce the energy storage costs of stand-alone Wind/PV power generation system, it is necessary to configure the capacity ratio of storage system reasonably. By analyzing the energy storage characteristics of ultracapacitor and battery, an energy management strategy of the hybrid energy storage system is proposed, as well as the calculation procedure of LPSP based on this energy management strategy. An optimization model is constructed, which considers the lowest average annual cost of energy storing device based on life cycle cost theory as the optimization objective, and considers the reliability indexes such as LPSP of stand-alone Wind/PV System as the constraints, then the optimization problem is solved by improved PSO algorithm. Finally, it is indicated that the proposed energy management strategy could play the complementary advantages of two storage components more adequately, and effectively decrease energy storage system cost by the computing results comparison of an example.