电力系统自动化
電力繫統自動化
전력계통자동화
AUTOMATION OF ELECTRIC POWER SYSTEMS
2015年
15期
17-23,109
,共8页
微网(微电网)%孤岛型%需求侧管理%负荷调度%能量管理
微網(微電網)%孤島型%需求側管理%負荷調度%能量管理
미망(미전망)%고도형%수구측관리%부하조도%능량관리
microgrid%island%demand-side management%load dispatching%energy management
目前，国内外对微网运行的能量管理研究已取得了一定的成果，但是，主要是针对并网型微网运行的研究，而对孤岛型微网能量管理的研究还相对较少。因此，针对孤岛型微网的运行特点，研究了微网中的需求侧管理与调度方法，建立了孤岛型微网能量管理的优化调度模型。首先分析了在微网中开展需求侧管理的意义，将微网内的负荷按重要程度和用电特性分为三类，并作为可调度的对象。其次以总运行费用与停电损失之和最小为目标，计及停电量约束、储能设备运行约束和备用容量约束等条件，建立了孤岛型微网能量管理的混合整数规划模型，并使用 CPLEX 软件进行求解。算例结果表明，引入需求侧管理增加了孤岛型微网能量管理的灵活性，提高了可再生能源发电的利用率，降低了微网的运行成本。
目前，國內外對微網運行的能量管理研究已取得瞭一定的成果，但是，主要是針對併網型微網運行的研究，而對孤島型微網能量管理的研究還相對較少。因此，針對孤島型微網的運行特點，研究瞭微網中的需求側管理與調度方法，建立瞭孤島型微網能量管理的優化調度模型。首先分析瞭在微網中開展需求側管理的意義，將微網內的負荷按重要程度和用電特性分為三類，併作為可調度的對象。其次以總運行費用與停電損失之和最小為目標，計及停電量約束、儲能設備運行約束和備用容量約束等條件，建立瞭孤島型微網能量管理的混閤整數規劃模型，併使用 CPLEX 軟件進行求解。算例結果錶明，引入需求側管理增加瞭孤島型微網能量管理的靈活性，提高瞭可再生能源髮電的利用率，降低瞭微網的運行成本。
목전，국내외대미망운행적능량관리연구이취득료일정적성과，단시，주요시침대병망형미망운행적연구，이대고도형미망능량관리적연구환상대교소。인차，침대고도형미망적운행특점，연구료미망중적수구측관리여조도방법，건립료고도형미망능량관리적우화조도모형。수선분석료재미망중개전수구측관리적의의，장미망내적부하안중요정도화용전특성분위삼류，병작위가조도적대상。기차이총운행비용여정전손실지화최소위목표，계급정전량약속、저능설비운행약속화비용용량약속등조건，건립료고도형미망능량관리적혼합정수규화모형，병사용 CPLEX 연건진행구해。산례결과표명，인입수구측관리증가료고도형미망능량관리적령활성，제고료가재생능원발전적이용솔，강저료미망적운행성본。
Currently,studies on energy management of microgrid operation have gained some achievement at home and abroad. However,most of the studies are concerned with the grid-connected microgrid while those on the islanded microgrid are relatively few.So,with an eye to the operation characteristics of the island microgrid,the demand-side management and dispatching method are enumerated.And an optimal operation model for energy management of an island microgrid is developed.Firstly,the significance of conducting demand-side management in the microgrid is analyzed.The load in the island microgrid is classified into three classes and treated as schedulable variables based on their electrical features and degree of importance.Secondly,a mixed integer programming optimization scheduling model is exploited to minimize the sum of the total operating cost and the value of lost load considering related constraints and then solved by CPLEX software.Simulation results show that the introduction of the demand-side management has enhanced the flexibility of energy management of the island microgrid,and increased the utilization of renewable energy,which eventually contributes to the reduction in the operating cost of the microgrid.
