Hierarchical optimal scheduling method and device applicable to park energy router clusters

A technology for optimizing scheduling and routers, applied to circuit devices, AC networks with energy trade/energy transmission authority, AC network circuits, etc., can solve the "curse of dimensionality", increase the complexity of optimization problems, and controllable energy router clusters Multiplication of variables and data, etc., to achieve the effect of simplifying logic complexity, improving economy and stability

Active Publication Date: 2022-02-18
STATE GRID ZHEJIANG ELECTRIC POWER +4
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Problems solved by technology

Compared with a single energy router, the controllable variables and data of the energy router cluster in the park distribution network are multiplied. If it is included in a single optimization model, the complexity of the optimization problem will increase exponentially, resulting in "dimensional "Number of Disasters"

Method used

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  • Hierarchical optimal scheduling method and device applicable to park energy router clusters
  • Hierarchical optimal scheduling method and device applicable to park energy router clusters
  • Hierarchical optimal scheduling method and device applicable to park energy router clusters

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Embodiment

[0085] by figure 2 The 33 nodes shown (N node =33) Take the radial distribution network in the park as an example, apply the present invention to access 5 energy routers (N ER =5) The cluster performs hierarchical optimization scheduling, including:

[0086] Step 1: Divide the whole day into N of equal length T time period, get the N in the distribution network of the park in each time period of the next day node The regular load forecasting data connected by nodes, N ER The forecast data of photovoltaic power generation connected to each energy router is used as the basic data for hierarchical optimal scheduling.

[0087] The full day is divided into equal length N T The periods are divided equally, and the duration of each period is ΔT=24h / N T , where h is the hour unit.

[0088] Step 2: Establish the upper layer optimization model of the distribution network energy router cluster, including decision variables, objective functions and constraints.

[0089] The decis...

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Abstract

The invention discloses a hierarchical optimization scheduling method and device suitable for park energy router clusters. The method includes dividing time periods and acquiring basic data; establishing an upper-layer optimization model of distribution network energy router clusters; and solving the upper-layer optimization model of distribution network energy router clusters Optimization problem; the upper-level optimization results are used as constraints to establish the local optimization model of the lower-level energy router; the local optimization problem of each energy router is solved, and the energy router is scheduled. The invention decomposes the unified optimization problem of the energy router cluster and various distributed energy sources in the park distribution network into a double-layer optimization problem, effectively reduces the complexity of the optimization solution, and maximizes the schedulability of various energy sources , can effectively improve the economy and stability of the distribution network operation in the park.

Description

technical field [0001] The invention relates to the technical field of optimal dispatching of distribution networks in parks, in particular to a layered optimal dispatching method applicable to energy router clusters in parks. Background technique [0002] A large number of various distributed energy sources and new loads are connected to the distribution network of the park, which brings many new challenges to the operation and control of the distribution network of the park. As a new type of equipment that integrates power electronics technology and information communication technology, the energy router can provide AC and DC interfaces for various new sources and loads, complete voltage and current conversion, collect various electrical quantities in operation, and actively perform power flow control. At the same time, it also has a certain communication function, which will play a key role in the future power grid energy management and power control. [0003] After the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J3/38H02J3/46
CPCH02J3/00H02J3/008H02J3/381H02J3/46H02J2203/20H02J2203/10H02J2300/24Y02E10/56
Inventor 谢栋杨才明章立宗蒋玮范强罗刚赵洲沈勇俞永军姚一杨韩连山王健徐光福
Owner STATE GRID ZHEJIANG ELECTRIC POWER
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