Control method and control system of improving electricity production of large-scale photovoltaic-energy storage combination system

Abstract

The invention provides a control method and a control system of improving electricity production of a large-scale photovoltaic-energy storage combination system. The control method comprises steps that an output power planned value of a photovoltaic-energy storage combination power generation system at t moment is acquired; an output power goal value of a photovoltaic power generation system is calculated; the power generation power of the photovoltaic power station is controlled by a photovoltaic power station monitoring system according to the output power goal value of the photovoltaic power generation system; and the photovoltaic-energy storage combination system is used to transmit the output power command value of the photovoltaic power station and an output power command value of an energy storage power station, which are calculated based on the photovoltaic power station power generation power, to the photovoltaic power station monitoring system and an energy storage power station monitoring system. The power generation plan output power can be well tracked, and by adopting the control of the charging and discharging power of the energy storage system, the economic benefits of the photovoltaic power generation are improved, and the solar energy utilization rate of the photovoltaic power station is effectively improved.

Description

technical field [0001] The invention belongs to the field of large-scale energy storage technology and new energy power generation technology, and specifically relates to a control method and system for increasing the power generation of a large-scale solar-storage combined system. Background technique [0002] With the continuous development of the global economy, the consumption of energy continues to increase. Coal, oil, natural gas and other fossil energy resources continue to decrease, and they are facing depletion. The development and utilization of new energy sources has received widespread attention and support. Solar energy has been developed rapidly due to its clean, pollution-free, renewable and other advantages. However, the effect of photovoltaic power generation is greatly affected by the environment such as light intensity and temperature, the output power is random and fluctuating, and it has poor ability to track the planned power generation. The emergenc...

AI Technical Summary

Problems solved by technology

[0005] At present, on the large-scale new energy power generation side, the research on the optimization control of the photovoltaic power storage combined power generation system that tracks the real-time changing photovoltaic power generation dispatching demand is still in its infancy, and the relevant patents are very limited. It takes into account the photovoltaic power storage combined system to track the power generation plan and improve the economy of power generation. Sexual patents are blank

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