东北大学学报(自然科学版)
東北大學學報(自然科學版)
동북대학학보(자연과학판)
Journal of Northeastern University (Natural Science)
2015年
11期
1521-1525
,共5页
微型智能电网%经济运行%不确定性优化%情景生成%分支定界算法
微型智能電網%經濟運行%不確定性優化%情景生成%分支定界算法
미형지능전망%경제운행%불학정성우화%정경생성%분지정계산법
smart microgrid%economic operation%optimization under uncertainty%scenario generation%branch and bound algorithm
针对微型智能电网经济运行优化问题中,分布式可再生能源输出功率的预测误差具有不确定性的特点,提出了一种基于混合0-1随机非线性规划的微型智能电网运行优化方法。该方法将蒙特卡洛方法与轮盘赌选择机制相结合,利用情景生成方法来表示分布式可再生能源输出功率预测误差的所有可能实现,同时将带有不确定性的微型智能电网运行优化问题转化为确定性的混合0-1非线性优化问题,并用分支定界算法求解混合0-1非线性优化问题。最后,利用情景聚合方法得到最优期望解。通过仿真实验表明了所提出方法的有效性。
針對微型智能電網經濟運行優化問題中,分佈式可再生能源輸齣功率的預測誤差具有不確定性的特點,提齣瞭一種基于混閤0-1隨機非線性規劃的微型智能電網運行優化方法。該方法將矇特卡洛方法與輪盤賭選擇機製相結閤,利用情景生成方法來錶示分佈式可再生能源輸齣功率預測誤差的所有可能實現,同時將帶有不確定性的微型智能電網運行優化問題轉化為確定性的混閤0-1非線性優化問題,併用分支定界算法求解混閤0-1非線性優化問題。最後,利用情景聚閤方法得到最優期望解。通過倣真實驗錶明瞭所提齣方法的有效性。
침대미형지능전망경제운행우화문제중,분포식가재생능원수출공솔적예측오차구유불학정성적특점,제출료일충기우혼합0-1수궤비선성규화적미형지능전망운행우화방법。해방법장몽특잡락방법여륜반도선택궤제상결합,이용정경생성방법래표시분포식가재생능원수출공솔예측오차적소유가능실현,동시장대유불학정성적미형지능전망운행우화문제전화위학정성적혼합0-1비선성우화문제,병용분지정계산법구해혼합0-1비선성우화문제。최후,이용정경취합방법득도최우기망해。통과방진실험표명료소제출방법적유효성。
According to the characteristics of economic dispatch problem for smart microgrid With uncertainties related to the forecasted errors for reneWable energy sources (RESs),a methodology based mixed 0-1 stochastic nonlinear programming Was proposed.The roulette Wheel mechanism (RWM)and Lattice Monte Carlo simulations (LMCS)Were used to generate scenarios.By means of this strategy,the stochastic problem Was converted to a number of deterministic problems With different probabilities.MeanWhile,branch and bound algorithm Was employed to solve each of the deterministic problems.Consequently,the solutions obtained from the accepted scenarios Were aggregated according to the probability to find the expected result of the investigated problem considering uncertainty.The validity of this optimization methodology Was proved by the simulation results.