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Load adjustable time potential measuring and calculating method and system for steel technological process

A technology for process flow and steel, applied in the field of load-adjustable time potential measurement, which can solve the problems of complexity, nonlinear production scheduling, and difficulty in estimating the load-adjustable potential of steel process flow

Pending Publication Date: 2021-05-18
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the process industry demand response scheduling in the prior art is coupled by the complex structure of the production scheduling system (serial, parallel, mesh) and the demand response uncertain scene parameters (peak shaving and valley filling, new energy consumption), Its production scheduling is nonlinear and complex, which leads to the problem that the load adjustable potential of the iron and steel process is difficult to estimate. The present invention provides a method for measuring the load adjustable time potential of the iron and steel process, including:

Method used

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  • Load adjustable time potential measuring and calculating method and system for steel technological process
  • Load adjustable time potential measuring and calculating method and system for steel technological process
  • Load adjustable time potential measuring and calculating method and system for steel technological process

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Embodiment 1

[0056] The present invention provides a method and system for measuring and calculating the load adjustable time potential for iron and steel technological processes, such as figure 1 shown, including:

[0057] Step 1: Obtain each activity and the processing time of each activity in the production process of the iron and steel industry;

[0058] Step 2: Determine the earliest occurrence time and latest occurrence time of each activity based on the activities and the processing time of each activity and the pre-built steel industry production process model;

[0059] Step 3: Determine the adjustable potential time of each activity based on the earliest occurrence time and latest occurrence time of each activity;

[0060] Wherein, the production process model of the iron and steel industry utilizes the top-down hierarchical extension method of Petri nets to establish the production process of the iron and steel industry.

[0061] Among them, S1 is divided into two parts, specif...

Embodiment 2

[0103] In order to prove the effectiveness and accuracy of the proposed method, as well as the accuracy of the model built in this paper, the following cases are selected for simulation verification in this paper, in which the AOE network modeling of the key process of the production process is as follows: Figure 5 shown.

[0104] Calculate the earliest start time and latest start time of the AOE network according to the MATLAB simulation software programming as shown in the following table:

[0105] Table 1 The earliest and latest start schedule of AOE network

[0106]

[0107] Then, according to the earliest and latest start schedule of the AOE network, draw the key process identification map of the production process, such as Figure 6 Shown: Among them, V0, V1, V4, V6, and V8 processes are critical paths, and the processes between the processes do not have the potential for time adjustment. Other process activities such as a1 have a time adjustable potential of 2, and...

Embodiment 3

[0110] Based on the same inventive idea, the present invention also provides a load-adjustable time potential measurement system for iron and steel technological processes, such as Figure 7 Shown: includes:

[0111] The acquisition module is used to acquire each activity and the processing time of each activity in the production process of the iron and steel industry;

[0112] A time determination module, configured to determine the earliest occurrence time and the latest occurrence time of each activity based on the activities and the processing duration of each activity and the pre-built steel industry production process model;

[0113] A potential calculation module, configured to determine the adjustable potential time of each activity based on the earliest occurrence time and the latest occurrence time of each activity;

[0114] Wherein, the production process model of the iron and steel industry utilizes the top-down hierarchical extension method of Petri nets to estab...

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Abstract

The invention provides a load adjustable time potential measuring and calculating method and system for a steel technological process. The method comprises the following steps: acquiring each activity in a production process of the steel industry and the processing duration of each activity; determining the earliest occurrence time and the latest occurrence time of each activity based on the activity, the processing duration of each activity and a pre-constructed steel industry production process model; determining adjustable potential time of each activity based on the earliest occurrence time and the latest occurrence time of each activity, wherein the iron and steel industry production process model establishes an iron and steel industry production process by using a Petri net hierarchical expansion method from top to bottom. According to the method, no-load clearance adjustment of non-critical paths in the technological process is added, energy conservation and consumption reduction of iron and steel enterprises are achieved, and the influence of impact loads on the stability of an electric power system is reduced.

Description

technical field [0001] The invention belongs to the field of iron and steel energy, and in particular relates to a load-adjustable time potential measurement method and system for iron and steel technological processes. Background technique [0002] At present, research related to electricity demand response mainly focuses on continuous process production. For example, the control of central air-conditioning in buildings, V2G, energy storage charging and discharging, etc., are characterized by continuous, stable, independent power consumption and no correlation between individuals. Compared with continuous process power loads, process industrial production often involves many Processes and multi-tasks are connected in series and parallel, the stage of the production process is strongly coupled with the power consumption process, the integrity of the process and the continuity of logistics must be ensured in the production process, and the premise of demand response must be t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06Q10/04G06Q10/06G06Q50/04G06F119/12
CPCC21B2300/04C21C2300/06G06Q10/047G06Q10/06312G06Q10/06314G06Q10/06315G06Q10/0633G06Q50/04G06F30/27G06F2119/12Y02P10/25Y02P80/10Y02P90/30
Inventor 宫飞翔陈宋宋李德智田世明覃剑韩凝晖石坤潘明明周颖袁金斗王勇谢尊辰
Owner CHINA ELECTRIC POWER RES INST