采用模块化求解的主动配电网优化运行
|
摘要
对主动配电网运行方式优化,可以合理安排分布式电源、无功设备和储能设备的运行计划,提高配电网运行效率.以配电网运行成本和电压合格率最小为目标,电网和设备运行要求为约束,建立主动配电网日前、日内的有功无功协调优化模型;分析各类待求变量在优化模型中的特点和随时序变化程度,对连续变量和两类离散变量以及时段进行协调,建立相应的求解模块;通过各模块间的迭代实现总体最优.结合配电网特点的模块化处理方式,是对传统非线性混合整数动态规划算法的简化,具有计算资源需求上的明显优势.通过118节点算例的计算分析,表明了所提算法的可行性和实用性.
By optimizing the operation mode of the active distribution network,the operation plan of distributed generation,reactive equipment and energy storage equipment could be arranged rationally,and the operation efficiency of distribution network would be improved.The operation cost and the voltage qualification rate in a distribution network were used as the minimize objective,and the operation requirement of power grid and equipment were used as constraints,day-ahead and real-time optimization models with active and reactive power coordination were established.Characteristics of all kinds of variables in the optimization model,and effect degrees of time series in variables were analyzed.Solution modules corresponding to continuous variables,two types of discrete variables,and the coordination between time intervals were established,and the overall optimum was achieved through the iteration among modules.Combined with the characteristics of distribution network,the modular processing method was a simplification of the traditional nonlinear mixed integer dynamic programming algorithm,which has obvious advantages in computing resource demand.The calculation and analysis in the 118-bus example showed that the proposed algorithm was feasible and practical.
By optimizing the operation mode of the active distribution network,the operation plan of distributed generation,reactive equipment and energy storage equipment could be arranged rationally,and the operation efficiency of distribution network would be improved.The operation cost and the voltage qualification rate in a distribution network were used as the minimize objective,and the operation requirement of power grid and equipment were used as constraints,day-ahead and real-time optimization models with active and reactive power coordination were established.Characteristics of all kinds of variables in the optimization model,and effect degrees of time series in variables were analyzed.Solution modules corresponding to continuous variables,two types of discrete variables,and the coordination between time intervals were established,and the overall optimum was achieved through the iteration among modules.Combined with the characteristics of distribution network,the modular processing method was a simplification of the traditional nonlinear mixed integer dynamic programming algorithm,which has obvious advantages in computing resource demand.The calculation and analysis in the 118-bus example showed that the proposed algorithm was feasible and practical.
引文
[1]刘一兵,吴文传,张伯明,等.基于混合整数二阶锥规划的主动配电网有功-无功协调多时段优化运行[J].中国电机工程学报,2014,34(16):2575-2583.
[2]符杨,廖剑波,李振坤,等.考虑越界风险的主动配电网日前优化调度及运行[J].中国电机工程学报,2017,37(21):6328-6336.
[3]任佳依,顾伟,王勇,等.基于模型预测控制的主动配电网多时间尺度有功无功协调调度[J].中国电机工程学报,2018,38(5):1397-1407.
[4]张世达,孙永辉,卫志农,等.考虑可控光伏系统概率模型的主动配电网日前优化调度[J].电网技术,2018,42(1):247-253.
[5]尤毅,刘东,钟清,等.主动配电网优化调度策略研究[J].电力系统自动化,2014,38(9):177-183.
[6]SOROUDI A,SIANO P,KEANE A.Optimal DR and ESS scheduling for distribution losses payments minimization under electricity price uncertainty[J].IEEEtransactions on smart grid,2016,7(1):261-272.
[7]窦震海,牛焕娜,高燕,等.主动型配电网日前调度策略研究[J].农业工程学报,2014,30(11):126-133.
[8]廖剑波,李振坤,符杨.“源-网-荷”相协调的主动配电网经济调度[J].电力系统及其自动化学报,2018,30(1):69-75.
[9]曾博,杨煦,张建华.考虑可再生能源跨区域消纳的主动配电网多目标优化调度[J].电工技术学报,2016,31(22):148-158.
[10]黄伟,熊伟鹏,闫彬禹,等.不同时间尺度下虚拟微网优化调度策略[J].电力系统自动化,2017,41(19):12-19.
[11]曾鸣,彭丽霖,王丽华,等.主动配电网下分布式能源系统双层双阶段调度优化模型[J].电力自动化设备,2016,36(6):108-115.
[12]周晓娟,王奎英,张将.基于辅助函数思想的城市高压电网无功优化[J].郑州大学学报(工学版),2014,35(4):79-82.
[2]符杨,廖剑波,李振坤,等.考虑越界风险的主动配电网日前优化调度及运行[J].中国电机工程学报,2017,37(21):6328-6336.
[3]任佳依,顾伟,王勇,等.基于模型预测控制的主动配电网多时间尺度有功无功协调调度[J].中国电机工程学报,2018,38(5):1397-1407.
[4]张世达,孙永辉,卫志农,等.考虑可控光伏系统概率模型的主动配电网日前优化调度[J].电网技术,2018,42(1):247-253.
[5]尤毅,刘东,钟清,等.主动配电网优化调度策略研究[J].电力系统自动化,2014,38(9):177-183.
[6]SOROUDI A,SIANO P,KEANE A.Optimal DR and ESS scheduling for distribution losses payments minimization under electricity price uncertainty[J].IEEEtransactions on smart grid,2016,7(1):261-272.
[7]窦震海,牛焕娜,高燕,等.主动型配电网日前调度策略研究[J].农业工程学报,2014,30(11):126-133.
[8]廖剑波,李振坤,符杨.“源-网-荷”相协调的主动配电网经济调度[J].电力系统及其自动化学报,2018,30(1):69-75.
[9]曾博,杨煦,张建华.考虑可再生能源跨区域消纳的主动配电网多目标优化调度[J].电工技术学报,2016,31(22):148-158.
[10]黄伟,熊伟鹏,闫彬禹,等.不同时间尺度下虚拟微网优化调度策略[J].电力系统自动化,2017,41(19):12-19.
[11]曾鸣,彭丽霖,王丽华,等.主动配电网下分布式能源系统双层双阶段调度优化模型[J].电力自动化设备,2016,36(6):108-115.
[12]周晓娟,王奎英,张将.基于辅助函数思想的城市高压电网无功优化[J].郑州大学学报(工学版),2014,35(4):79-82.