考虑需求响应及其不确定性的台区三相不平衡治理

Three-phase Imbalance Control Considering Demand Response Uncertainty in Distribution Area

计及电力用户电量需求调整不确定性,建立了价格型需求响应模糊模型;基于可信性理论,考虑电力用户用电量与用电支出满意度,建立了台区负荷调整的模糊机会约束规划模型;利用清晰等价类方法对模糊机会约束进行处理,以台区三相用户用电偏差最小为目标,对A、B、C三相电力用户日前电价进行调整。算例表明所提治理措施能够减小台区三相不平衡度,降低台区负荷峰谷差,控制用户的用电成本,为三相不平衡治理提供新的思路。

Firstly,based on the load demand elasticity matrix,considering the uncertainty of electricity demand adjustment of electric customers,a price-based demand response fuzzy model is established.Secondly,based on the credibility theory,considering the satisfaction degree of electricity consumption and electricity expenditure of electric customers,a fuzzy chance-constrained programming model for load adjustment of distribution area is established.On this basis,a clear equivalence method is used to calculate the fuzzy chance-constraint.With the objective of minimizing the deviation of three-phase users'electricity consumption in the distribution area,the daily electricity price of three-phase users of A,B and C is adjusted.Case study shows that the proposed method can reduce the three-phase imbalance,reduce the peak-valley load difference and control the user's cost.