Comprehensive power generation system and method for improving the peak load regulation economy of a set

Abstract

The invention relates to a comprehensive power generation system and method for improving the peak load regulation economy of a set. A thermal generator set of the comprehensive power generation system is connected with a comprehensive power generation system controller through a thermal generator set controller. An energy storage power generation system is connected with the comprehensive power generation system controller through an energy storage system controller. The comprehensive power generation system controller receives power grid dispatching instruction sources sent by a power grid to control running conditions of the thermal generator set and the energy storage power generation system. The thermal generator set and the energy storage power generation system supply power to the power grid at the same time or the thermal generator set generates power to separately supply power to the power grid, surplus load of the thermal generator set is stored in the energy storage power generation system for later use, and the load stored in the energy storage power generation system is used for supplying power to the power grid when the thermal generator set needs to be operated at ahigher load. Therefore, set peak load transfer of the thermal generator set is carried out, waste of resources is avoided, the economy of the set is improved, and the carbon emission of power generation per unit is reduced.

Description

technical field [0001] The invention relates to a new energy grid system, in particular to an integrated power generation system and method for improving the peak-shaving economy of a unit. Background technique [0002] After a large amount of renewable energy is connected to the power grid, due to the contradiction between the intermittency and uncertainty of wind power, photovoltaic power and other renewable energy and the load stability requirements on the power side, the power grid needs to use thermal power, hydropower and other units for peak regulation. operation to maintain grid security and power system stability. [0003] At present, thermal power units, which are the main peak-shaving units in the power grid, mostly carry out deep peak-shaving operations. However, the deep peak-shaving operation of the unit reduces the economy of the unit and increases the coal consumption of power supply. The performance test results of some deep peak shaving units show that du...

AI Technical Summary

Problems solved by technology

Due to the deep peak-shaving operation of the thermal power unit, which involves the input switching of the main auxiliary equipment, etc., there is also a gap between the variable-load operation performance of the unit and the AGC requirements of the grid during the deep peak-shaving operation. Because the AGC adjustment performance cannot meet the requirements, the assessed The cost is high, and the economy of unit variable load operation is reduced

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