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Power flow simulation control method based on time series

A time series and control method technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems that are difficult to meet the analysis of AND network characteristics, and it is difficult to control the visual observation of continuous time power flow data, etc., to achieve Flexible control and management to meet the effect of flexible calling

Active Publication Date: 2014-10-08
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the continuous and real-time characteristics of traditional power system simulation calculations, the power flow section information output by the simulation does not have a time scale, and often only the power flow information of a certain real-time section can be observed during power grid simulation analysis, which is difficult to analyze. Controllable and visual observation of a series of continuous-time power flow data is difficult to meet the needs of AND network characteristic analysis, and it is necessary to study a new simulation method for power flow control analysis

Method used

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  • Power flow simulation control method based on time series
  • Power flow simulation control method based on time series
  • Power flow simulation control method based on time series

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Experimental program
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Effect test

Embodiment 1

[0069] Embodiment 1: continuous power flow control analysis method

[0070] This method is suitable for the analysis of continuous time series power flow data without external disturbance, which includes the following steps:

[0071] Step 1: Establish an AND network model including DER, and use power flow calculation software to output power flow section data in time series. For the output workflow of power flow data with time series, please refer to image 3 , which includes the following parts.

[0072] (1) Data input: data input includes AND model, DER model, load model, environment model and time model of the place where AND is located. According to the characteristics of the AND network, the output characteristics of the DER model and the load model change with the environment of the AND network and the time of simulation.

[0073] (2) Power flow calculation: The power flow is based on the initial section data, and the current environmental characteristics, load charac...

Embodiment 2

[0083] Embodiment 2: interactive real-time simulation analysis

[0084] This method is suitable for simulation analysis based on a specific tidal current section and adding external disturbances (faults, abnormalities, sudden changes in weather, etc.), and its control method flow can be found in Image 6 . The feature of this method is that the user can designate a specific power flow section in the historical section as the initial section, and perform simulation analysis on the operation of the power grid under special conditions under the condition of external disturbance. The steps are as follows:

[0085] Step 1: Use the power flow control module to customize strategy information such as the initial section of the simulation, the duration of the simulation, and the size of the simulation step.

[0086] The second step: use the power flow control module to obtain the specified section data from the historical section data, and write the section time as the initial power f...

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Abstract

The invention provides a power flow simulation control method based on a time series. The power flow simulation control method comprises the following steps that flow calculation is carried out, flow storage information is recorded, flow control is carried out, flow section information is loaded, and the flow section information is analyzed and displayed. The power flow simulation control method based on the time series can overcome the shortcoming that traditional power flow analysis software lacks visual display of continuous time series flow control and continuous time information of equipment, and realize controllable, observable and analyzable continuous flow data.

Description

technical field [0001] The technical field of power system simulation of the present invention particularly relates to a power flow simulation control method based on time series. Background technique [0002] When simulating the active distribution network (Active Distribution Networks, ADN) with distributed energy resources (Distributed Energy Resources, DER), due to the instability and intermittent characteristics of the output of DER, the simulation of the power grid During the analysis, it is necessary to dynamically analyze the power flow in some specific continuous time, and dig out the characteristics and rules of the operation of the AND network containing multiple DERs. However, due to the continuous and real-time characteristics of traditional power system simulation calculations, the power flow section information output by the simulation does not have a time scale, and often only the power flow information of a certain real-time section can be observed during po...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCY02E60/00
Inventor 葛贤军蒲天骄陈乃仕杨占勇林静怀刘克文刘广一谢巧云江凡陈端云
Owner STATE GRID CORP OF CHINA