CAJ | 학술논문

储能系统由于具备对功率和能量的时间迁移能力，是实施电力需求侧管理、控制负荷变动的一种有效手段。分析并建立由储能系统初始投资成本、运行维护成本、设备更换成本和资金收益构成的储能系统净现值目标函数，为准确估算储能在频繁不规则循环下的寿命周期，提出了一种基于等效寿命损耗的电池寿命计算模型；为确定储能充放电起止时刻，提出了一种改进的储能充放电策略。在容量优化计算中，采用量子编码结合自适应遗传算法，并引入灾变思想以提高计算速度达到全局最优。最后基于某电力需求侧一典型日的数据，分别对锂离子、钠硫、铅酸储能系统容量进行优化，通过基于净现值的经济性分析，对比三种储能应用于电力需求侧的经济性，结果表明，基于文中设置的边界条件，钠硫储能较另外两种储能更具经济性。
저능계통유우구비대공솔화능량적시간천이능력，시실시전력수구측관리、공제부하변동적일충유효수단。분석병건립유저능계통초시투자성본、운행유호성본、설비경환성본화자금수익구성적저능계통정현치목표함수，위준학고산저능재빈번불규칙순배하적수명주기，제출료일충기우등효수명손모적전지수명계산모형；위학정저능충방전기지시각，제출료일충개진적저능충방전책략。재용량우화계산중，채용양자편마결합자괄응유전산법，병인입재변사상이제고계산속도체도전국최우。최후기우모전력수구측일전형일적수거，분별대리리자、납류、연산저능계통용량진행우화，통과기우정현치적경제성분석，대비삼충저능응용우전력수구측적경제성，결과표명，기우문중설치적변계조건，납류저능교령외량충저능경구경제성。
The energy storage system (ESS) is an effective means of power demand side management (DSM) and control of load variation for its time shift capability with respect to power and energy.This paper presents an objective function of ESS net present value (NPV) composed of factors of the initial investment capital,operation and maintenance costs,equipments replacement costs and capital gains.A model based on equivalent life loss for calculating the battery life and an improved strategy for ESS charge/discharge is proposed, which is used for estimating the life of ESS with irregular cycles and determining the start-stop time of ESS charge/discharge,respectively.To speed up the calculation for achieving the global optimal solution,a scheme of quantum coding combined with self-adapting GA is adopted and cataclysm is introduced.A case study is made in terms of NPV for analyzing the economic benefits of three kinds of ESS,i.e.lithium-ion,lead-acid and sodium-sulfur.Based on boundary conditions set up in this paper,the experimental results show that sodium-sulfur ESS applied on the power demand side brings better economic benefits than the other two.