Quick regulation and control system for output of photovoltaic power station on basis of cold-heat-power joint production

Abstract

The invention discloses a quick regulation and control system for output of a photovoltaic power station on the basis of cold-heat-power joint production. The quick regulation and control system is characterized in that the photovoltaic power station is provided with a hot reservoir and a cold reservoir, a refrigerating plant is mounted on the cold reservoir, a radiating pipeline which is communicated with the hot reservoir and the cold reservoir is arranged on a photovoltaic module rear panel, outlet water of the cold reservoir accesses a water inlet of the radiating pipeline, and outlet water of the radiating pipeline accesses the hot reservoir. The quick regulation and control system has the advantages that natural supply and demand difference between the output of the photovoltaic power station and load demand can be restrained by the quick regulation and control system, increase of network loss and waste of resources due to remote power transmission or discarding when supply exceeds demand can be prevented, a means for quickly regulating the power generation capacity can be provided when the supply is less than the demand, accordingly, waste of the light resources can be prevented to a certain extent, partial hot water demand of the power station and surrounding facilities can be met, and effects of comprehensively utilizing energy can be improved.

Description

technical field [0001] The invention relates to a photovoltaic power station output rapid control system based on cold-heat-electricity cogeneration, which belongs to the field of new energy power generation control. Background technique [0002] In recent years, the scale of solar energy development and utilization has rapidly expanded, technological progress and industrial upgrading have been accelerated, and costs have been significantly reduced. It has become an important field of global energy transformation. As of the end of 2015, the cumulative installed capacity of solar power generation in the world reached 230 million kilowatts, and the newly installed capacity in that year exceeded 53 million kilowatts, accounting for 20% of the world's newly installed power generation capacity. From 2006 to 2015, the average annual growth rate of photovoltaic power generation exceeded 40%, becoming the fastest growing energy variety in the world. The cumulative installed capacit...

AI Technical Summary

Problems solved by technology

Traditional control methods need to use long-distance power transmission to send the surplus power out or directly discard light for the period when the power supply exceeds the demand in the region, resulting in increased network loss and waste of resources; but for the period when the supply is less than demand, there is no effective control method. The method is to quickly increase the output of photovoltaic power plants to narrow the power supply gap. Only conventional controllable power sources such as thermal power and hydropower can be used for load peak regulation. If these power sources are far away from the geographical location of the load, long-distance power transmission is required. Also cause network loss to increase

Therefore, the traditional control strategy cannot achieve the purpose of comprehensively optimizing the utilization of solar energy resources, and does not meet the latest guidelines of the National Energy Administration for the consumption of distributed energy nearby.

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