Hybrid energy firepower peak shaving power station and peak shaving method

Abstract

The invention provides a hybrid energy firepower peak shaving power station and a peak shaving method. The hybrid energy firepower peak shaving power station comprises a power plant unit, a liquid air energy storage unit and a battery unit, the power plant unit is provided with a first generator, the liquid air energy storage unit is provided with an energy storage flow path and an energy release flow path which are connected, the first generator is connected with the energy storage flow path and the battery unit, and the first generator, the energy release flow path and the battery unit can respectively transmit power to a power grid. According to the peak shaving power station, a traditional power plant can be combined with the liquid air energy storage unit and the battery unit, deep peak shaving of 0-200% rated power of the peak shaving power station can be achieved, the power plant unit can be always maintained to run without shutdown under the rated working condition, and the running efficiency of the power plant unit is improved; moreover, high-power peak load shifting can be realized through flexible switching between an energy storage stage and an energy release stage of the liquid air energy storage unit; and moreover, the quick response and instantaneous frequency modulation of the energy storage power station are realized through the switching of the charging and discharging stages of the battery unit.

Description

Technical field [0001] The present invention relates to the field of energy-saving and environmentally friendly technology, and more particularly to a hybrid energy fireproof peak power station and a peak method. Background technique [0002] With the sharpness of the global industrialization, there is a periodic change in the peak and late-night trough during the grid load, and the peak valley difference of the electric load can reach 30% to 40% of the maximum power generation. The presence of the peak valley has a certain difficulty in power generation and power schedules, but also risks to the power grid. At the same time, in order to meet the maximum load requirements of the grid, the construction cost of the grid has also increased significantly, and the utilization efficiency is low. [0003] At present, the proportion of thermal power plants in the power grid transmission technology is relatively highest, but is limited to the technical characteristics of the thermal power...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a mixed energy thermal power peak regulation power station, which is used to solve the defects that the existing traditional thermal power plants are limited by their own technical characteristics, have a small peak regulation range, and the instantaneous response of peak regulation and frequency regulation is not timely.

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