Scheduling method and device for photovoltaic energy storage system

Abstract

The invention relates to the technical field of photovoltaic energy storage system control, in particular to a scheduling method and device for a photovoltaic energy storage system, and the method comprises the steps: generating first predicted power generation power according to meteorological parameters and photovoltaic power generation parameters, and then correcting the first predicted power generation power through employing historical power generation data to generate second predicted power generation power; generating predicted load power according to the production plan; and according to the predicted load power and the second predicted power generation power, generating energy storage adjustment power corresponding to the scheduling time, and controlling the photovoltaic energy storage system by adopting the energy storage adjustment power. The method has the beneficial effects that the historical power generation data corresponding to the scheduling time is added in the power generation power prediction of the photovoltaic power generation system for correction, so that the photovoltaic power generation power calculated based on a physical model is more in line with historical experience data; therefore, the problem that normal work of the energy storage system is affected due to the fact that the scheduling power of the energy storage system in the prior art easily deviates from reality due to model errors and the like is solved.

Description

technical field [0001] The invention relates to the technical field of photovoltaic energy storage system control, in particular to a scheduling method and device for a photovoltaic energy storage system. Background technique [0002] Photovoltaic energy storage system refers to the equipment system used in photovoltaic power generation system to store, convert and release recyclable electric energy through electrochemical cells or electromagnetic energy storage media. Since the photovoltaic power generation system is greatly affected by external factors such as weather and seasons, there are obvious power fluctuations in the entire working cycle, which brings certain difficulties to the dispatching of the power grid. In response to this problem, the peak-shaving of the output power of the photovoltaic power generation system through the energy storage system can effectively avoid problems such as power abandonment and power shortage of the photovoltaic power generation syst...

AI Technical Summary

Problems solved by technology

However, in the actual implementation process, the inventor found that due to the influence of input parameters and other factors in the implementation process of the above technical solution, it is easy to make the difference between the energy storage / discharge power and the actual situation due to the model error problem in a specific environment, which makes the The energy storage system cannot play its due role, causing additional energy waste

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