Research on Power Accurate Control Method of Ramp-Type Gravity Energy Storage System

Presently, most of the ramp-type gravity energy storage devices through transport heavy blocks between the upper and lower stacking yards to switch between energy storage and energy release, but this method cannot regulate the energy output by changing the number of heavy blocks released in time, so it is difficult to quickly and accurately respond to the demand of the load, and it causes additional energy loss as the load demand changes. In this paper, we add auxiliary heavy block stacking yard on both sides of the ramp channel, and by controlling the release quantity of heavy blocks in the top stacking yard, selecting different heights of the ramp stacking yard to release the heavy blocks, and controlling the position of the grasping heavy blocks in the ramp stacking yard, we realize the precise control of the output energy of the gravity storage device, which improves the response speed of the gravity storage device and reduces the extra energy loss. Finally, based on Matlab/Simulink simulation, the correctness and effectiveness of the proposed method are verified.