Load smooth control method based on demand side resource unified state model

A state model and smooth control technology, applied in AC network circuits, circuit devices, reducing/preventing power oscillation, etc., can solve the problems of reducing the economics of renewable energy access, uneconomical adoption, and impracticality

Active Publication Date: 2017-08-18
TIANJIN UNIV
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Problems solved by technology

However, the adoption of large-scale ESS application energy storage system will be uneconomical and impractical, greatly reducing the economics of renewable energy access

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  • Load smooth control method based on demand side resource unified state model
  • Load smooth control method based on demand side resource unified state model
  • Load smooth control method based on demand side resource unified state model

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Embodiment Construction

[0151] The present invention will be further described in detail below in combination with specific embodiments.

[0152] A load smoothing control method based on a demand-side resource unified state model proposed by the present invention includes the following steps:

[0153] Step 1: Establish a unified state model of demand-side resources. The present invention is mainly aimed at demand-side resources represented by distributed power sources, electric vehicles and temperature-controlled loads. A day is divided into M time intervals, and each interval is Δt, that is, M×Δt=24. In the present invention, the superscript i is used to refer to the resource type, and the distributed power supply, electric vehicle and temperature control load are represented by G, V and L respectively (i∈{G,V,L}); the subscript j is used to indicate The serial number of a specific demand-side resource among G, V, and L. include:

[0154] 1-3) Establish a distributed power supply state model as ...

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Abstract

The invention discloses a load smooth control method based on a demand side resource unified state model. Firstly the demand side resource unified state model is established, and then load curve smooth control is realized based on the model. The response characteristics of different types of demand side resources can be described by using a unified mathematical expression by the unified state model; a control matrix is derived to realize real-time management and control of the demand side resource output power on the basis of considering the response order of the demand side resources; fully consumption and absorption of renewable energy sources can be realized by a control strategy on the basis of considering the energy using comfort level of the user so that the SOC before traveling of the electric automobile is ensured to meet the user requirements, and the indoor temperature in which the temperature control load is located is ensured to meet the comfort requirements of the user; and power fluctuation of the load can be obviously reduced by the control, and the power fluctuation rate can be maintained to be below 10% of the preset value.

Description

technical field [0001] The invention relates to a transmission network planning method, in particular to a load smoothing control method based on a demand-side resource unified state model. Background technique [0002] In recent years, with the advantages of renewable green and environmental protection, renewable energy such as wind energy and solar energy has attracted more and more attention worldwide [1]. However, distributed generation (DG) of renewable energy has the characteristics of random intermittence, thus bringing a lot of uncertainty to the operation of distribution network. , resulting in fluctuations in the load power of the distribution network, it is worth noting that a serious change in the load power of the distribution network [2] will significantly affect the power system and will have a profound impact on the stable operation of the distribution network [2], thus And limit the utilization and absorption of renewable energy [3]. [0003] Traditional g...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/24
CPCH02J3/24H02J2203/20
Inventor 穆云飞王明深贾宏杰张亚朋余晓丹
Owner TIANJIN UNIV
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