Energy storage power station for clean energy source compensation and energy storage system with clean energy source compensation function

Abstract

The invention discloses an energy storage power station for clean energy source compensation. The energy storage power station is connected with a detection power grid and comprises a cell stack energy storage system, a cell stack management system, a bidirectional inversion system, a monitoring system, a direct-current clean energy source and a clean energy source controller, wherein the cell stack energy storage system is used for storing electric energy; the cell stack management system is used for realizing bidirectional conversion between an alternating current and a direct current; the monitoring system monitors the detection power grid and realizes bidirectional conversion between the alternating current and the direct current by using the bidirectional inversion system according to parameter signals of the detection power grid; the monitoring system realizes control between charging or discharging modes of the cell stack energy storage system by using the cell stack management system; the direct-current clean energy source is used for charging the cell stack energy storage system; and the clean energy source controller controls the direct-current clean energy source to charge or stop charging the cell stack energy storage system by using the cell stack management system according to the parameter signals of the direct-current clean energy source. By adoption of the energy storage power station, the aims of relieving power supplying shortage, clipping a peak, filling a valley and balancing power grid loads are fulfilled.

Description

technical field [0001] The invention relates to an energy storage power station in a grid system, in particular to an energy storage power station with clean energy compensation and an energy storage system with clean energy compensation for peak shifting and valley filling, balancing grid loads. Background technique [0002] With the rapid development of economy, industry and agriculture and the improvement of people's living standards, on the one hand, the society's demand for electric energy is increasing day by day, and the demand continues to increase, which makes the power grid capacity continue to expand; High performance (that is, as little or no power outage as possible) is also getting higher and higher. However, the daily demand of power users is very unbalanced, and the load deviation between the peak power consumption during the day and the low valley load at night is very large, which makes the peak-valley difference of major power grids gradually increase. In...

AI Technical Summary

Problems solved by technology

However, since the pumped storage power station needs to build two reservoirs, the upper and lower reservoirs, it is difficult to build in the plain area due to geographical and water source constraints, and it occupies a large area, with a long construction period and high maintenance costs, and its development is limited; in addition , the pumped storage power station takes a long time to start and stop, has low efficiency, and cannot quickly respond to grid peak regulation

Images