中国电机工程学报
中國電機工程學報
중국전궤공정학보
ZHONGGUO DIANJI GONGCHENG XUEBAO
2015年
4期
759-765
,共7页
丁涛%孙宏斌%柏瑞%姚峥毅
丁濤%孫宏斌%柏瑞%姚崢毅
정도%손굉빈%백서%요쟁의
经济调度%风电并网%禁止区间%混合整数二次规划%大M法%互补约束
經濟調度%風電併網%禁止區間%混閤整數二次規劃%大M法%互補約束
경제조도%풍전병망%금지구간%혼합정수이차규화%대M법%호보약속
economic dispatch%wind power integration%prohibited zones%mixed integer quadratic programming%bigM%complementary constraints
发电机在其可行运行区域的某些区间范围内,由于自身物理条件的限制,可能使得轴承振动放大,因此需设置一些禁止区间,而禁止区间会使经济调度模型连续可调的发电机出力变成分段连续调节量。另一方面,发电机需要留有一定的备用容量以应对大规模风电资源接入电网后的不确定性,但禁止区间在一定程度上会降低系统的备用容量。因此,建立了以发电机成本最小和风电接纳量最大为目标的带禁止区间的经济调度模型,并采用混合整数二次规划方法进行求解。分别以6机、15机和多机系统进行仿真验证,结果表明所提方法能够快速有效地得到最优发电机出力和最大风电接纳量,可以较好地适用于实时经济调度系统。
髮電機在其可行運行區域的某些區間範圍內,由于自身物理條件的限製,可能使得軸承振動放大,因此需設置一些禁止區間,而禁止區間會使經濟調度模型連續可調的髮電機齣力變成分段連續調節量。另一方麵,髮電機需要留有一定的備用容量以應對大規模風電資源接入電網後的不確定性,但禁止區間在一定程度上會降低繫統的備用容量。因此,建立瞭以髮電機成本最小和風電接納量最大為目標的帶禁止區間的經濟調度模型,併採用混閤整數二次規劃方法進行求解。分彆以6機、15機和多機繫統進行倣真驗證,結果錶明所提方法能夠快速有效地得到最優髮電機齣力和最大風電接納量,可以較好地適用于實時經濟調度繫統。
발전궤재기가행운행구역적모사구간범위내,유우자신물리조건적한제,가능사득축승진동방대,인차수설치일사금지구간,이금지구간회사경제조도모형련속가조적발전궤출력변성분단련속조절량。령일방면,발전궤수요류유일정적비용용량이응대대규모풍전자원접입전망후적불학정성,단금지구간재일정정도상회강저계통적비용용량。인차,건립료이발전궤성본최소화풍전접납량최대위목표적대금지구간적경제조도모형,병채용혼합정수이차규화방법진행구해。분별이6궤、15궤화다궤계통진행방진험증,결과표명소제방법능구쾌속유효지득도최우발전궤출력화최대풍전접납량,가이교호지괄용우실시경제조도계통。
Due to the physical limitations of the generator, the vibrations in a shaft bearing may be amplified at a certain operation regimes, the prohibited zones are needed which leads to a disjoint power generation instead of continuous output. Besides, the reservation for each generator should also be considered to face with the stochastic integrated generation of large-scale wind power into power grid, which actually reduces the total reservation of the grid. Therefore, the economic dispatch with the multiple objective of minimized cost and maximized wind power integration, as well as the prohibited zones, was set up, and a standard mixed integer quadratic programming was formulated. Furthermore, the test system with six, fifteen and multiple generators were simulated respectively. The results show that the proposed method can be applied to the real-time system.