Research on Comprehensive Strategy of Microgrid PV Absorption Capability Improvement

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Han, Ninghui^1 ; Ai, Yufei^2 ; Li, Dezhi^1 ; Li, Yang^2

Department of Power Consumption, China Electric Power Research Institute, 100192, China^1

State Grid Electronic Commerce., LTD, 100053, China^2

关键词: Absorption capability;    Consumption rates;    Energy storage systems;    Flexible characteristics;    Improved simulated annealing algorithm;    Micro-grid systems;    Renewable energies;    User satisfaction;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/4/042080/pdf
DOI  :  10.1088/1755-1315/295/4/042080

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

As a typical renewable energy, photovoltaic (PV) has developed rapidly due to its permanent, clean and flexible characteristics. However, in the microgrid with a high proportion of PV installed, the difficulty of absorption has always been a hot issue. This paper constructs a photovoltaic microgrid system containing an electric vehicle and introducing a demand response model. Electric vehicles are used as energy storage systems and transferable loads. With the constraints of user satisfaction and the goal of maximizing photovoltaic absorption, the economy of microgrid is also taken into account. The peak, flat and valley time periods of time-sharing tariff are optimized to construct the tariff incentive model, which promotes the movement of the transferable load to the photovoltaic output. Comparing the comprehensive and single effects of energy storage system and demand response and the improved simulated annealing algorithm is used to solve the problem of multivariable nonlinearity. The results show that the combined effect of the two methods can promote the consumption rate and reduce the cost of power generation side and user side, while reducing the emission of polluting gases.