Method and system for energy regulation in photovoltaic buildings

Abstract

The invention relates to a method and system for energy regulation in a photovoltaic building. The method includes: obtaining a training sample optimization database according to historical operating data; judging whether the current time is in a high electricity price period, and if so, determining an optimal training sample from the training sample optimization database, combining the current photovoltaic power and basic load information of the photovoltaic building , to obtain the current preferred shiftable load size; if not, calculate the energy difference between the current photovoltaic power of the photovoltaic building and the basic load, and obtain the current preferred shiftable load size; adjust the photovoltaic building according to the current preferred shiftable load size The load can be shifted to adjust the current operating energy. Through the present invention, the photovoltaic self-consumption rate of the photovoltaic building system can be effectively improved, the cost of purchasing electricity from the grid can be reduced, and the economic efficiency of photovoltaic building operation can be improved.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a method and system for energy regulation in photovoltaic buildings. Background technique [0002] Photovoltaic (PV or photovoltaic) is the abbreviation of solar photovoltaic power generation system. It is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. It has independent operation and grid-connected operation. two ways. With the continuous development of photovoltaic renewable energy and the deepening of related research, photovoltaic cells as a distributed power supply for intelligent buildings have also attracted attention. [0003] In the photovoltaic building environment, there are photovoltaic systems as distributed power sources, and the loads include basic loads and shiftable loads. The so-called basic load refers to loads with relatively fixed wo...

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Problems solved by technology

[0004] In general photovoltaic buildings, the load power consumption curve does not completely match the photovoltaic power curve, so the resources of the photovoltaic system cannot be fully utilized, and the photovoltaic self-consumption rate in photovoltaic buildings is not high; This leads to unreasonable allocation of system energy purchase and sale, unnecessary grid power purchase expenses, and economical efficiency needs to be improved

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