Energy storage peak regulation system based on wind, light and thermal power generation multi-energy complementation

Abstract

The invention discloses an energy storage peak regulation system based on multi-energy complementation of wind, light and thermal power generation, which comprises a steam-water heat exchanger, and the injection end and the discharge end of the steam-water heat exchanger are connected with a generator set through pipelines. By arranging the proper hot water heat storage tank, under the same peak shaving depth, the electric energy-heat energy conversion amount is reduced, so that the economical efficiency is better, the deep peak shaving capacity of the unit can be improved, the peak capacity of the unit can be improved, the two-way adjusting flexibility of the unit can be enhanced, the operation mode is flexible, and the service life of the unit is prolonged. Compared with the advantages of high fuel adjustment response speed and no adverse effect on boiler operation, the method solves the problems that a power grid in a conventional mode receives new energy electric quantity according to the accommodating capacity, and when the power grid cannot absorb the new energy electric quantity, the new energy generation power is limited to ensure the electric energy quality and safety of the power grid, and all electric energy is converted into heat energy through an electric heat storage peak regulation mode developed in recent years. And the efficiency is relatively low.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to an energy storage peak-shaving system based on the multi-energy complementation of wind, light and thermal power generation. Background technique [0002] Electricity is an energy source powered by electrical energy. It was discovered in the 1870s. The discovery and application of electricity set off the second industrialization climax. It has become one of the three scientific and technological revolutions that have occurred in the world since the 18th century in human history. The large-scale power system that appeared in the 20th century is one of the most important achievements in the history of human engineering science. It is a power production and consumption system composed of power generation, transmission, transformation, distribution and consumption. The primary energy is converted into electricity through mechanical energy devices, and then the electricity is ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an energy storage peak-shaving system based on multi-energy complementarity of wind, light and thermal power generation, equipped with a suitable hot water heat storage tank, and at the same peak-shaving depth, because the conversion of electric energy to heat energy is reduced Therefore, the economy is better. It can not only improve the deep peak shaving capability of the unit, but also improve the peak capacity of the unit, enhance the two-way adjustment flexibility of the unit, and the operation mode is flexible. Compared with adjusting the fuel response speed block and boiler operation, there is no adverse effect It solves the problem that the conventional power grid accepts new energy electricity according to its capacity. When the grid cannot accommodate it, the power generated by new energy is limited to ensure the quality and safety of power grid power. The peak-shaving form of electric heat storage developed in recent years will All electrical energy is converted into heat energy, the problem of relatively low efficiency

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