The experiments of large consumers direct power trading is conducting in china nationwide, and it’s important to the reform of electricity market. To compensated efficiencies in security correction of large consumers...The experiments of large consumers direct power trading is conducting in china nationwide, and it’s important to the reform of electricity market. To compensated efficiencies in security correction of large consumers direct power trading, a novel security correction method based on DC power transfer distribution factor was proposed. Using the presented method to comply security correction, all the transactions that satisfy the specific requirements of maximizing social welfare are able to enter security correction process, and when the power of transmission line is out of limit, this method avoid the transaction which causes this problem is abandoned directly by introducing supplement transactions. The simulation has shown that the proposed security correction method of large consumers direct power trading based on DC power transfer distribution factor is effective.展开更多
大用户直购电是电力市场改革的研究热点。建立了考虑不确定性因素的可利用传输能力(available transfer capability,ATC)模型,将其应用于大用户直购电交易中,并引入保险理论,以提升直购电过程中的供电可靠性。在ATC模型中同时考虑大用...大用户直购电是电力市场改革的研究热点。建立了考虑不确定性因素的可利用传输能力(available transfer capability,ATC)模型,将其应用于大用户直购电交易中,并引入保险理论,以提升直购电过程中的供电可靠性。在ATC模型中同时考虑大用户停电损失,建立了大用户决策模型。将大用户在不同电厂的购电量和备用容量保险购买量作为变量,并以大用户停电损失最小作为优化目标,通过粒子群算法进行优化求解,获得大用户最优购电决策。最后通过IEEE 57系统进行仿真,结果证明了所提方法的有效性。展开更多
文摘The experiments of large consumers direct power trading is conducting in china nationwide, and it’s important to the reform of electricity market. To compensated efficiencies in security correction of large consumers direct power trading, a novel security correction method based on DC power transfer distribution factor was proposed. Using the presented method to comply security correction, all the transactions that satisfy the specific requirements of maximizing social welfare are able to enter security correction process, and when the power of transmission line is out of limit, this method avoid the transaction which causes this problem is abandoned directly by introducing supplement transactions. The simulation has shown that the proposed security correction method of large consumers direct power trading based on DC power transfer distribution factor is effective.
文摘大用户直购电是电力市场改革的研究热点。建立了考虑不确定性因素的可利用传输能力(available transfer capability,ATC)模型,将其应用于大用户直购电交易中,并引入保险理论,以提升直购电过程中的供电可靠性。在ATC模型中同时考虑大用户停电损失,建立了大用户决策模型。将大用户在不同电厂的购电量和备用容量保险购买量作为变量,并以大用户停电损失最小作为优化目标,通过粒子群算法进行优化求解,获得大用户最优购电决策。最后通过IEEE 57系统进行仿真,结果证明了所提方法的有效性。
