Large-sized integrated utilization system for photo-thermal power generating station and photovoltaic power generating station

Abstract

The invention relates to a large-sized integrated utilization system for a photo-thermal power generating station and a photovoltaic power generating station, which comprises a solar photo-thermal power generating unit and a photovoltaic power generating unit. A solar heat power generating mirror field in the solar photo-thermal power generating unit is connected with a heat collecting system; the heat collecting system is connected with a steam turbine; a generator is driven by the steam turbine to generate power; the generator is connected with an alternating-current power grid; a photovoltaic battery array in the photovoltaic power generating unit is connected with a direct-current distributor; the output of the direct-current distributor is divided into two parts; one of the two parts is connected with a heat accumulation system of the photo-thermal power generating station, or a steam generating direct-current electric furnace or a direct-current electric pump; and the other part enters the alternating-current power grid through an inverter after being reactively compensated. According to the large-sized integrated utilization system for the photo-thermal power generating station and the photovoltaic power generating station, a solar photo-thermal power generating mode and a photovoltaic power generating mode are combined with each other, and the advantages are complemented with each other, thereby, solar resources are more effectively utilized.

Description

technical field [0001] The invention relates to the technical field of solar power generation, in particular to an integrated utilization system of large-scale photothermal and photovoltaic power stations. Background technique [0002] With the continuous development of economy and society, the demand for energy is increasing day by day. Fossil energy has increasingly serious pollution and non-renewable problems. It is imperative to develop clean and renewable energy. Solar energy is abundant, and it is an environmentally friendly and clean renewable energy that has attracted widespread attention. [0003] Solar power generation mainly includes two forms: photothermal and photovoltaic. Photothermal refers to the use of solar energy to heat the working medium, which absorbs energy to reach a state of high temperature and high pressure, and then drives a heat engine to generate electricity. Photothermal can be divided into two categories: concentrating and non-concentrating....

AI Technical Summary

Problems solved by technology

The concentrating solar thermal power generation system is similar to the traditional thermal power station system. It can be considered as replacing the coal-fired boiler with a solar collector. reduction of

Photovoltaic refers to the use of solar photovoltaic panels to directly convert solar energy into electrical energy. The power station itself consumes very little power, but inverters are required for large-scale grid-connected power generation, and energy storage in the power station is more difficult

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