Abstract
The number of distributed photovoltaic power generation systems connected to the system is increasing, especially for residents and non-residents. A large amount of photovoltaic grid-connected power brings new problems to the line loss management of the distribution network. This paper proposes a theoretical calculation model of line loss for distribution network with multi-distributed photovoltaic access. This paper adopts the actual case of Shanghai Power Grid, calculates based on the mathematical model proposed, and puts forward targeted optimization suggestions by comparing the simulation analysis results.
Highlights
Distributed photovoltaics (PV) have been introduced into the distribution network more and more widely due to their high flexibility and low pollution
Studying the impact of multi-distributed photovoltaic access on the line loss of the distribution network and the study of loss reduction strategies are of great significance to improve the development level of distributed PV, improve the level of line loss management of the distribution network, and promote social and economic development
On the basis of the conventional theoretical calculation method of the distribution network, this paper constructs a distribution network line loss calculation model based on equivalent resistance and regression analysis, and selects a typical distribution network line containing distributed PV in the Shanghai area for physical Model, and select the optimal loss reduction measures suitable for the region by comparing the simulation results
Summary
Distributed photovoltaics (PV) have been introduced into the distribution network more and more widely due to their high flexibility and low pollution. It has changed the network structure and operation mode of the distribution system, and on the other hand, it has greatly affected the calculation process of the distribution network line loss. In the distribution network line loss management, the traditional distribution network line loss calculation formula will have unreasonable line loss when calculating the line loss of the station area with distributed photovoltaic power generation users. A large amount of PV grid power brings new problems to the line loss management of the station area. Studying the impact of multi-distributed photovoltaic access on the line loss of the distribution network and the study of loss reduction strategies are of great significance to improve the development level of distributed PV, improve the level of line loss management of the distribution network, and promote social and economic development. On the basis of the conventional theoretical calculation method of the distribution network, this paper constructs a distribution network line loss calculation model based on equivalent resistance and regression analysis, and selects a typical distribution network line containing distributed PV in the Shanghai area for physical Model, and select the optimal loss reduction measures suitable for the region by comparing the simulation results
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