Electric heat-storage device configuration system

Abstract

The invention provides a configuration system of an electric heat-storage peak shaving device, relative safe and reliable, flexible in operation and not too many restrictions on power plant construction conditions. The electric heat-storage device configuration system comprises a peak shaving system, a potential device and a grid, multiple sets of solid heat storage devices of the peak shaving system is taken as a peak shaving body in an integral formed by an entire power plant or a single unit, one set or multiple sets of liquid electric-storage devices are arranged at the same time, the solid heat storage devices are connected with the liquid electric-storage devices through the grid. By the arrangement, intelligent smooth depth peak saving of the grid is realized, impact on the grid is reduced, and heat supply and livelihood protection and peak shaving demands on the grid can be met.

Description

technical field [0001] The invention relates to the field of deep peak-shaving design of electric power, in particular to the field of scheme configuration design of an electric heat storage peak-shaving device of a cogeneration power plant. Background technique [0002] The combined heat and power units operate in the mode of "heating and power generation", and the peak regulation capacity is only about 10%. Difficulty in peak regulation has become the most prominent problem in power grid operation. If the contradiction between power grid peak regulation and thermal power unit heating is not properly handled, it may affect the safety of residents' heating in winter and affect people's livelihood. At present, cogeneration power plants are mainly 2×300MW units. In order to meet the requirements of deep peak regulation of the power grid, multiple groups of solid electric thermal storage devices with a total capacity of 240~320MW can be configured to complete the peak regulati...

AI Technical Summary

Problems solved by technology

If a solid electric thermal storage device is simply used, since the power range cannot be adjusted, the peak-shaving capacity of the power plant unit cannot be deeply excavated, which will affect the overall economics of peak-shaving. However, due to the lack of heat storage function, it cannot meet the needs of residents for continuous heating in winter. Although some projects are equipped with hot water tank storage, due to the limited heat storage capacity of hot water tanks, it is difficult to meet the heating needs of large areas.

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