A Coordinated Control Method of Energy Storage and Load Power Based on Lightning Strike Probability

Abstract

A coordinated control method of energy storage and load power based on lightning strike probability, through real-time forecast of lightning strike probability, real-time adjustment of output power of energy storage and adjustable load. Reducing the connection between the power grid in the region where lightning exists and the external power grid will reduce the impact of the lightning strike accident on the external power grid even if a lightning strike accident occurs, and at the same time reduce the economic loss caused by lightning strikes in the region where lightning exists. In order to ensure the user's satisfaction with electricity consumption, when the lightning strike probability exists, the output power of the energy storage system is first adjusted according to the lightning strike probability, and then the power of the adjustable load is adjusted, which achieves the purpose of power flow transfer. On the basis of considering the energy storage regulation cost and the power compensation cost of adjustable load regulation, the present invention establishes the relationship between the energy storage output power, the adjustable load regulation power and the lightning strike probability in the area, and then can adjust the lightning strike probability according to the lightning strike probability The energy storage system and the power of the adjustable load can be adjusted in real time, which is conducive to reducing the loss caused by lightning strike accidents.

Description

technical field [0001] The invention belongs to the technical field of dynamic lightning protection of power systems, and in particular relates to a method for coordinated control of energy storage and load power based on lightning strike probability. Background technique [0002] At present, in the field of lightning protection of power systems, passive lightning protection measures are mainly adopted, such as installing lightning rods and lightning conductors. Although these measures can reduce the risk of lightning strikes, they start from the lightning protection protection of a single device and cannot give full play to the active control ability of the system. Traditional lightning protection measures cannot play the initiative of the system. When there is a probability of lightning strikes on the line, the system can only passively rely on devices such as "lightning rods" and "lightning conductors", without any other active defense control measures. Therefore, tradit...

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Problems solved by technology

[0003] In recent years, dynamic lightning protection technology has gradually developed. Prior art 1 (CN110311377B) discloses the source network load storage control and load flexible switching method under lightning weather, but does not provide the energy storage and load power according to the lightning strike probability. The specific method of real-time adjustment; prior art 2 (CN112467740B) discloses an active protection method for lightning strikes on important transmission channels based on lightning early warning, but this invention is to actively protect transmission channels from lightning strikes through the transfer of important transmission channels, and does not consider energy storage Adjustment cost and power compensation cost of adjustable load regulation are used to establish the relationship between energy storage output power, adjustable load regulation power and lightning strike probability in the area. Among them, energy storage equipment and adjustable load are the key objects of power flow adjustment, which can further improve system defense Ray's initiative

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