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A method of dynamic power balance of regional power grid based on hvac system

A technology of regional power grid and dynamic balancing, applied in the direction of reducing/preventing power oscillation, etc., which can solve the problem of inability to effectively guide the power regulation process.

Active Publication Date: 2022-04-05
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current research lacks a clear definition and analysis of the energy storage regulation potential of the HVAC system, and cannot effectively guide the power regulation process

Method used

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  • A method of dynamic power balance of regional power grid based on hvac system
  • A method of dynamic power balance of regional power grid based on hvac system
  • A method of dynamic power balance of regional power grid based on hvac system

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Embodiment Construction

[0069] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0070] The technical problem to be solved by this invention is mainly to obtain the energy storage adjustment potential of the HVAC system by combining the dynamic characteristics of the HVAC system’s electric cooling and heating conversion and the user’s temperature comfort requirements, and then invent a regional grid power system that utilizes the HVAC system’s energy storage adjustment ability. Dynamic balance method The present invention has two sub-modules: an HVAC system energy storage adjustment model, and an HVAC system power adjustment model.

[0071] Module 1: Combining the dynamic characteristics of the HVAC system's electric cooling and heating conversion and the user's temperature comfort requirements, construct an HVAC system energy storage adjustment model;

[0072] Module 2: According to the energy storage adjustment capability of the HVAC sy...

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Abstract

The present invention provides a method for dynamic balance of regional grid power based on an HVAC system. The method includes the following steps: (1) identifying the power demand of the regional grid through the system frequency signal; (2) adjusting the HVAC load according to the HVAC system energy storage adjustment model Carry out dynamic classification, and evaluate the HVAC load response capability by calculating the power index and energy index; (3) adjust the HVAC load power according to the HVAC system power regulation model, adjust the load power by controlling the HVAC load switch state, and respond to the power demand of the regional power grid. The invention fully utilizes the HVAC system widely connected in the power system to support the power balance of the regional power grid. When the power imbalance occurs in the regional power grid, the load power can be controlled by dynamically adjusting the switch state of the HVAC system, responding to the power demand of the regional power grid, and maintaining the frequency stability of the regional power grid.

Description

technical field [0001] The invention relates to a method for dynamic balancing of a power grid, in particular to a method for dynamic balancing of regional power grid power based on an HVAC system. Background technique [0002] With the continuous expansion of the scale of renewable energy access to the grid, it is difficult for traditional system power balance adjustment methods to effectively suppress the frequency fluctuations caused by random changes in the large output of renewable energy. The HVAC system has the characteristics of fast response, strong controllability, and wide application range. It is a typical user-side mixed cooling, heating, and electricity energy. The HVAC system has a large thermodynamic adjustment range, and the change of the switch state in a short period of time will not affect the normal use and comfort of the user. Therefore, this paper chooses the HVAC system as the control object, and participates in the system power balance control with ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24
CPCH02J3/24
Inventor 杨婧捷屈博郭炳庆闫华光蒋利民钟鸣黄伟戚艳
Owner CHINA ELECTRIC POWER RES INST
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