Frequency modulation operation method for virtual power plant based on comprehensive coordination control

Abstract

The present invention discloses a frequency modulation operation method for a virtual power plant based on comprehensive coordination control. The steps are as follows: user comfort requirements and basic parameters of an air conditioning system are combined to form a user demand curve and aggregate bidding is carried out; a virtual control signal is formed by using a market control mode and a secondary frequency modulation is realized by adjusting the set temperature of the air conditioner user; a virtual inertial link is added on the basis of the traditional virtual droop control to form an improved virtual droop curve of the virtual power plant; the gear adjustment trigger frequency of each air conditioner is calculated and issued under a discrete control mode; and the primary frequency modulation is realized by adjusting the operation gear of an indoor unit. The invention matches the power response characteristics of the air conditioning system under different control modes with the response demand of the secondary frequency modulation and the primary frequency modulation of a power grid at the time sequence, fully exploits the demand response potential of the air conditioning system, and significantly reduces the power frequency modulation burden of the power grid.

Description

technical field [0001] The invention belongs to the technical field of electric power system and automation thereof, and in particular relates to a frequency regulation operation method of a virtual power plant. Background technique [0002] In recent years, the world's energy shortage and environmental degradation have become increasingly serious, and new energy power generation technologies have been vigorously developed and widely used. However, new energy power generation is affected by the natural environment, and has significant volatility and uncertainty, which brings great challenges to the dynamic balance of grid power, and the problem of grid frequency regulation has become increasingly prominent. At the same time, the continuous increase in the proportion of new energy has led to a decrease in the frequency regulation capacity of traditional units, which has greatly increased the system's demand for flexible regulation capacity. [0003] Demand response guides us...

AI Technical Summary

Problems solved by technology

However, new energy power generation is affected by the natural environment and has significant volatility and uncertainty, which brings great challenges to the dynamic balance of grid power, and the problem of grid frequency regulation is becoming increasingly prominent

At the same time, the continuous increase in the proportion of new energy has led to a decrease in the frequency regulation capacity of traditional units, which has greatly increased the system's demand for flexible regulation capacity

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