Combined type power stabilizing system based on super-capacitor and high-capacity energy storing device

Abstract

The invention discloses a combined type power stabilizing system based on a super-capacitor and a high-capacity energy storing device in the field of power stabilizing system design. The technical scheme includes that the combined type power stabilizing system based on the super-capacitor and the high-capacity energy storing device comprises a super-capacitance energy storing device, the high-capacity energy storing device and a wind field output power detection unit, wherein the wind field output power detection unit is respectively connected with a wind field and a power grid, the super-capacitance energy storing device is communicated with a wind-driven generator and is connected with the power grid through the wind field output power detection unit, and the high-capacity energy storing device is communicated with the wind-driven generator and is connected with the power grid through the wind field output power detection unit. The combined type power stabilizing system has the advantages that wind energy is stored in an atmospheric pressure energy form, the super-capacitor is used for coordinated control, the problem of large wind power fluctuation is solved, and economic benefit of the combined type power stabilizing system is greatly improved.

Description

technical field [0001] The invention belongs to the field of power leveling system design, in particular to a combined power leveling system based on a super capacitor and a large-capacity energy storage device. Background technique [0002] Wind power has now become recognized as a clean energy that can be developed on a large scale. To reduce carbon emissions in the power grid, wind power must be vigorously developed. However, the characteristics of wind power generation are intermittent and unstable. In order to ensure the effective utilization of wind energy resources, large-capacity energy storage devices are installed in the wind farm to store wind power. When wind power generation fluctuates rapidly under the influence of wind speed, the large-capacity energy storage device obviously cannot complete the function of rapid adjustment, and cannot meet the requirements of smoothing fluctuations, thereby affecting the power quality of the power grid and causing harmonic po...

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Problems solved by technology

[0004] Nowadays, there are various wind power energy storage devices, such as: pumped water storage, compressed air energy storage, electromagnetic energy storage, etc. These energy storage methods have solved the problem of resource waste caused by the anti-peaking characteristics of wind power, but these The adjustment of wind power by large-capacity energy storage devices is greatly affected by the intermittency of wind energy and the unbalanced spatial distribution, and it cannot quickly stabilize the power. The fluctuation of wind power has not been effectively solved. scheme, but the cost is too high to be practically applied, and the biggest obstacle to wind power grid integration still exists

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