Accurate load shedding method considering demand side resources

Abstract

The invention provides an accurate load shedding method considering demand side resources. The method comprises the steps of establishing a demand side air conditioner load model and an air conditioner polymer model; providing an air conditioner load polymer control method based on set temperature adjustment, and setting a demand side regulation and control round action value; calculating the system unbalanced power of the demand side after the regulation and control round, and setting an action frequency value, the action time delay and the load shedding amount of a load shedding action round; and determining a load shedding place according to the bus voltage sensitivity, and distributing the load shedding capacity. According to the present invention, the power consumption is reduced by adjusting the set temperature of the air conditioner load model, and the initiative of the demand side resources in power grid regulation and control is improved; and meanwhile, the power vacancy is dynamically set according to the frequency and voltage characteristics of the demand side after a response round, and the load shedding amount of each load node is dynamically distributed according to the bus voltage sensitivity, so that the adaptability and the load shedding accuracy are higher than those of the traditional offline load shedding amount setting method, and the economical efficiencyof the system operation is improved.

Description

technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to a precise load shedding method considering resources on the demand side. Background technique [0002] When the power grid is disturbed, the frequency and voltage of the system will drop due to power shortage. The load shedding device can restore the frequency and voltage to the normal operation state as soon as possible by cutting off part of the load, which is of great significance to the safe and stable operation of the power grid. Usually, the load shedding scheme needs to perform power grid stability calculation first, and then set the required shedding amount and action rounds of the system under each disturbance, and form a corresponding action strategy table. When a disturbance occurs, excess loads are shed sequentially according to the strategy table. Because the traditional strategy forcibly stops the power supply to the load-shedding line during load...

AI Technical Summary

Problems solved by technology

Because the traditional strategy forcibly stops the power supply to the load-shedding line during load shedding, it does not consider the participation and initiative of power users, which seriously affects the lives of users and cannot meet the needs of the power grid.

In the context of the smart grid, more and more controllable energy efficiency loads appear in the grid, and the use of active response on the demand side to perform load shedding will bring great benefits

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