Reliability Evaluation Method Considering Demand Response (DR) of Household Electrical Equipment in Distribution Networks

Abstract

The load characteristic of typical household electrical equipment is elaborately analyzed. Considering the electric vehicles’ (EVs’) charging behavior and air conditioning’s thermodynamic property, an electricity price-based demand response (DR) model and an incentive-based DR model for two kinds of typical high-power electrical equipment are proposed to obtain the load curve considering two different kinds of DR mechanisms. Afterwards, a load shedding strategy is introduced to improve the traditional reliability evaluation method for distribution networks, with the capacity constraints of tie lines taken into account. Subsequently, a reliability calculation method of distribution networks considering the shortage of power supply capacity and outages is presented. Finally, the Monte Carlo method is employed to calculate the reliability index of distribution networks with different load levels, and the impacts of different DR strategies on the reliability of distribution networks are analyzed. The results show that both DR strategies can improve the distribution system reliability.

Adaptability Evaluation of Distributed Power Sources Connected to Distribution Network

“…Compared with the traditional power distribution network, the power distribution network with new energy generation is different in many aspects. The adaptability evaluation of traditional energy access to distribution network is mainly based on the characteristics of distribution network, such as power supply reliability of urban distribution network [8][9][10][11], household power supply demand characteristics [10], economic analysis [12][13][14] and power system elasticity [15][16]. The traditional research object is based on the stability of distribution network.…”

Status of power equipment in 10kV distribution network based on digital twin technology

“…Literature [5] summarizes and compares the development and strategies of different smart grids, introduces the main features of smart grids in detail, predicts the development trend of power grids, and provides an analysis of key technologies for distribution automation. [6] This paper studies the power monitoring system based on smart grid, improves the traditional power monitoring algorithm, and proposes a reliable monitoring and processing algorithm. Document [7] introduces the principle of online monitoring for distribution network equipment, analyzes the existing problems and accumulated experience in online monitoring technology based on the application examples of typical equipment such as transformers and capacitive devices, and proposes the necessity of promoting the application of online monitoring devices.…”