Temperature control load participation microgrid regulation and control method and system based on model prediction

A technology for temperature control load and model prediction, which is applied in power network operating system integration, AC network voltage adjustment, information technology support systems, etc. problems such as low slope rate, to achieve the effect of improving the low frequency regulation efficiency, improving the frequency regulation ability, and restoring the balance of the load stably

Active Publication Date: 2021-06-18
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the response time of the diesel generator set is long, and the ramp rate of the unit is low, which makes it difficult to meet the requirements brought about by the integration of new energy into the grid.

Method used

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  • Temperature control load participation microgrid regulation and control method and system based on model prediction
  • Temperature control load participation microgrid regulation and control method and system based on model prediction
  • Temperature control load participation microgrid regulation and control method and system based on model prediction

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Embodiment 1

[0050] The capacity of a single household temperature control load is small, widely distributed, and difficult to control, but its total number is huge and its aggregation capacity is large. In practical applications, the thermodynamic model of a single temperature control load is the basis for establishing an aggregation model and a control scheme. The implementation of the present invention For example, based on the equivalent thermal parameter model of a single temperature-controlled load, the aggregation thermodynamic model of the cluster load in the set area on the demand side is constructed, and then the corresponding interconnected regional micro-grid system model is constructed, and the set constraints are considered to design the temperature based on model prediction. Control strategy of load control system.

[0051] Next, the detailed process of the method according to the embodiment of the present invention will be described in detail based on the accompanying drawin...

Embodiment 2

[0137] The method is described in detail in the disclosed embodiments of the present invention above, and the method of the present invention can be implemented in various forms of devices or systems. Therefore, based on other aspects of the methods described in any one or more of the above embodiments, the present invention also Provided is a temperature-controlled load participation microgrid regulation system based on model prediction, and the system is used to implement the method for temperature-controlled load participation microgrid regulation based on model prediction described in any one or more embodiments above. Specific examples are given below for detailed description.

[0138] specifically, Figure 10 The schematic diagram of the structure of the temperature-controlled load participating in the regulation and control system of the microgrid based on the model prediction provided in the embodiment of the present invention is shown, as shown in Figure 10 As shown...

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Abstract

The invention provides a temperature control load participation microgrid regulation and control method and system based on model prediction, and the method comprises the steps: constructing a load aggregation model for describing cluster load performance of a set area through a temperature control load description step by taking a basic physical model of the temperature control load as the basis and combining set influence factor constraints; constructing a system structure model of the temperature control load participating in an interconnected micro-grid based on a load aggregation model through a power grid model determination step, and determining a corresponding micro-grid system control mathematical model; and integrating the load aggregation model and the system control mathematical model through prediction control steps, introducing a model prediction control mechanism, and designing a frequency modulation controller of the interconnected micro-grid system according to a set optimization constraint strategy. By adopting the regulation and control scheme, the problems of large influence on the demand side and low frequency modulation efficiency in the existing regulation and control technology can be solved, the influence on the demand side is controlled, the potential of the temperature control load is fully exerted, and the state flexibility of the demand side load is expanded.

Description

technical field [0001] The present invention relates to the technical field of electric power system control, in particular to a method and system for temperature-controlled load participation in micro-grid regulation based on model prediction. Background technique [0002] Microgrid is a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, loads, monitoring and protection devices, etc. Various distributed power grid connection problems. The development of microgrid can fully promote the large-scale access of distributed power and renewable energy, realize the highly reliable supply of various energy forms for load, and help realize the transition from traditional grid to smart grid. [0003] Various distributed power sources, energy storage and loads are effectively integrated in the microgrid, which can realize flexible, reliable and economical power supply to local areas. Therefore, micro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/24H02J3/14H02J3/26
CPCH02J3/241H02J3/14H02J3/26H02J2203/10H02J2203/20Y04S20/222Y02E40/50Y02B70/3225
Inventor 董密高涵李力黄未名杨建宋冬然
Owner CENT SOUTH UNIV
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