Hierarchical optimization scheduling method and device suitable for park energy router cluster

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", controllable variables and data multiplication of energy router clusters , increasing complexity of optimization problems, etc.

Active Publication Date: 2020-11-03
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

Method used

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  • Hierarchical optimization scheduling method and device suitable for park energy router cluster
  • Hierarchical optimization scheduling method and device suitable for park energy router cluster
  • Hierarchical optimization scheduling method and device suitable for park energy router cluster

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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 a park energy router cluster. The method comprises the steps of dividing time periods and obtaining basicdata; establishing an upper-layer optimization model of a power distribution network energy router cluster; solving an upper-layer optimization problem of the power distribution network energy routercluster; establishing a lower-layer energy router local optimization model by taking an upper-layer optimization result as a constraint; and solving a local optimization problem of each energy router,and scheduling the energy routers. According to the method, the unified optimization problem of the energy router cluster and various distributed energy sources in the park power distribution networkis decomposed into a double-layer optimization problem, the complexity of optimization solution is effectively reduced, the schedulability of various energy sources is utilized to the maximum extent,and the economical efficiency and stability of the operation of the park power distribution network can be effectively improved.

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 ...

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Application Information

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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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