Wind storage isolated network power supply system coordination control method based on flexible coordination factors

Abstract

The present invention discloses a wind storage isolated network power supply system coordination control method based on flexible coordination factors, belonging to the technical field of power grid operation and control. The method comprises the following steps of: (1) obtaining operation parameters of a wind storage isolated network power supply system; (2) establishing a coordination control mechanism of the wind storage isolated network power supply system, and achieving an interbehavior between an upper layer of coordination control intelligent agent and a lower layer of unit decentralized control intelligent agent through direct and indirect effects; (3) calculating flexible coordination factors of power balance of the wind storage power supply system; (4) allowing the upper layer ofcoordination control intelligent agent to distribute the flexible coordination factors into the lower layer of unit decentralized control intelligent agent; and (5) allowing an energy storage inverter to enforce power control. The wind storage isolated network power supply system coordination control method based on flexible coordination factors can achieve coordination control of each unit of the wind storage isolated network system, ensures the stability of the output voltage and frequency of the wind storage isolated network system and provides technical basis and a practical method for stable operation of the wind storage isolated network system.

Description

technical field [0001] The invention relates to a coordinated control method for a wind storage isolated grid power supply system, in particular to a coordinated control method for a wind storage isolated grid power supply system based on a flexible coordination factor, and belongs to the technical field of power grid operation and control. Background technique [0002] Among the distributed energy generation, wind power generation is the project with the most mature technology, the most development conditions and good development prospects. However, limited by the capacity of the large power grid, problems such as "difficulty in grid connection" and "wind abandonment" in the process of large-scale access to the power grid have become major problems restricting the development of wind power. In response to the above-mentioned problems of wind power grid connection, experts at home and abroad have proposed wind-storage combined power generation technology. With the reduction...

AI Technical Summary

Problems solved by technology

The core problem of the stable operation of the wind-storage isolated power supply system is: after losing the support of the large power grid, under various external disturbance conditions, the system must rely on its own adjustment ability to restore a stable operating state

The complexity of this control lies in that, on the one hand, the control strategy must adapt to changes in various operating conditions, such as energy storage status, fan output changes, system load changes, etc., and different operating conditions require power characteristics provided by energy storage control. are also different, and their characteristics are also related to the operating status of the wind storage system

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