WO2015174359A1 - エネルギー需給運用ガイダンス装置及び製鉄所内のエネルギー需給運用方法 - Google Patents
エネルギー需給運用ガイダンス装置及び製鉄所内のエネルギー需給運用方法 Download PDFInfo
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- WO2015174359A1 WO2015174359A1 PCT/JP2015/063431 JP2015063431W WO2015174359A1 WO 2015174359 A1 WO2015174359 A1 WO 2015174359A1 JP 2015063431 W JP2015063431 W JP 2015063431W WO 2015174359 A1 WO2015174359 A1 WO 2015174359A1
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- 238000000034 method Methods 0.000 title claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title 2
- 229910052742 iron Inorganic materials 0.000 title 1
- 238000004364 calculation method Methods 0.000 claims abstract description 55
- 238000005457 optimization Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000006227 byproduct Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 31
- 238000010586 diagram Methods 0.000 description 6
- 239000000571 coke Substances 0.000 description 3
- 230000010365 information processing Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/14—Payment architectures specially adapted for billing systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Definitions
- the present invention relates to an energy supply and demand operation guidance apparatus that supports the supply and demand operation work of energy utilities such as by-product gas, steam, and electric power in a steel plant, and an energy supply and demand operation method in the steel plant.
- blast furnace gas (B gas) generated as a by-product from a blast furnace, coke gas (C gas) generated from a coke furnace, and converter gas (LD gas) generated from an LD converter are directly or It is reused as mixed gas (M gas) in factories and private power generation facilities.
- M gas mixed gas
- the gas that surpasses the level of the gas holder that stores the gas is operated, the surplus gas must be dissipated to the atmosphere, resulting in a loss.
- the amount of gas demand is greater than the amount of gas supply and there is a shortage of gas, the operation of the factory is affected and a loss is likewise caused. For this reason, in steelworks, it is necessary to operate gas appropriately according to the supply and demand of gas.
- Patent Documents 1 and 2 and Non-Patent Document 1 formulate the plant and its operating cost within the framework of mathematical programming, and find the optimal operation plan for the plant using various optimization methods. The technique to do is described.
- the person in charge of energy utility supply / demand operations at steelworks should operate according to the output of the current energy supply / demand operation guidance device, keeping in mind that there is an error in the optimization calculation by the computer. Or, it is necessary to determine whether or not to operate by own judgment. This is because, in the energy supply and demand operation guidance apparatus using the methods described in Patent Documents 1 and 2 and Non-Patent Document 1, the cost of an optimal operation plan increases due to a prediction error in the future energy utility supply and demand balance. Therefore, when the operation is performed according to the output of the energy supply and demand operation guidance device, the operation cost may be higher than when the current operation is performed.
- Patent Literatures 1 and 2 and Non-Patent Literature 1 cannot present information to the operator as to whether or not the operator should operate according to the output of the energy supply and demand operation guidance device. For this reason, according to the methods described in Patent Documents 1 and 2 and Non-Patent Document 1, as a result of operation according to the output of the energy supply and demand operation guidance device, the operation cost has risen compared to the case where the current business operation is performed. In some cases, the energy supply and demand operation guidance device is not effectively used.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide an energy supply and demand operation guidance apparatus capable of suppressing an increase in operation cost due to a prediction error of a future energy utility supply and demand balance, and The purpose is to provide energy supply and demand operation methods in steelworks.
- An energy supply / demand operation guidance apparatus is an energy supply / demand operation guidance apparatus that supports energy utility supply / demand operation work in a steel works, and is optimized by an optimization calculation for an energy utility and an optimum supply / demand for an energy utility.
- An optimization calculation unit that calculates an amount
- a prediction error estimation unit that calculates an estimated value of a supply and demand prediction error of a future energy utility using an actual value of a supply and demand prediction error of a past energy utility including the current time
- An operational cost increase calculation unit that calculates an increase in the supply and demand operation cost of the energy utility according to the estimated value of the energy utility supply and demand prediction error calculated by the prediction error estimation unit, and the optimization calculation unit Supply / demand operation costs
- the operation cost correction unit that calculates the operation cost correction value that is the sum of the increase in supply and demand operation cost calculated by the operation cost increase amount calculation unit, and the supply and demand operation cost of the energy utility when the current operation is performed
- the supply and demand operation cost calculated by the optimization calculation unit is lower than the actual value, and when the operation cost correction value is higher than the actual value of the energy utility supply and demand operation cost when the current operation is performed, or the operation
- the amount of increase in supply and demand operation cost calculated by the cost increase amount calculation unit is greater than or equal to the set value
- the energy supply and demand operation guidance apparatus is characterized in that, in the above invention, the energy utility includes at least one of by-product gas, steam, and electric power generated in the steelworks.
- the energy supply / demand operation guidance apparatus is characterized in that, in the above invention, the operation cost increase calculation unit calculates an increase in supply / demand operation cost using a function having the prediction error as a variable.
- the energy supply and demand operation method in the steel plant according to the present invention includes a step of performing a supply and demand operation operation of the energy utility in the steel plant according to the information output from the energy supply and demand operation guidance device according to the present invention.
- the energy supply and demand operation guidance apparatus and the energy supply and demand operation method in the steelworks according to the present invention it is possible to suppress an increase in the operation cost of the energy utility due to a prediction error in the future energy utility supply and demand balance.
- FIG. 1 is a block diagram showing a configuration of an energy supply and demand operation guidance apparatus according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating an example of data stored in the energy supply and demand prediction accuracy database illustrated in FIG. 1.
- FIG. 3 is a diagram illustrating an example of a relationship between an increase in gas supply and demand operation costs and a gas supply and demand prediction error.
- FIG. 4 is a diagram illustrating an example of the trend of operating costs of energy utilities in steelworks.
- FIG. 5 is a diagram illustrating an example of an alarm output timing of the energy supply and demand operation guidance apparatus according to the embodiment of the present invention corresponding to the trend illustrated in FIG.
- FIG. 6 is a diagram illustrating an example of a change with time in the supply and demand prediction error of the energy utility.
- An energy supply and demand operation guidance apparatus is an apparatus that supports energy utility supply and demand operation work in an ironworks.
- the energy utility includes at least one of by-product gases (B gas, C gas, LD gas, M gas) generated in the steelworks, steam, and electric power.
- an energy supply and demand operation guidance apparatus 1 is configured by an information processing apparatus such as a personal computer or a workstation, and includes an energy supply and demand prediction accuracy database (DB) 2 and a prediction error estimation.
- an operation cost increase calculation unit 4 an optimization calculation unit 5, an operation cost correction unit 6, an alarm display unit 7, and a guidance screen 8 are provided as main components.
- the prediction error estimation unit 3, the operation cost increase calculation unit 4, the optimization calculation unit 5, the operation cost correction unit 6, and the alarm display unit 7 execute a computer program by an arithmetic processing device such as a CPU in the information processing device. Is realized.
- the energy supply / demand prediction accuracy DB2 is configured by a non-volatile storage device, and stores, for example, predicted values and actual values of energy utility demand and supply in the past as shown in FIG. .
- the predicted values of the demand amount and the supply amount are the demand amount and the supply amount predicted one calculation cycle before the time when the data is stored in the energy supply and demand prediction accuracy DB2.
- the prediction error estimator 3 acquires predicted values and actual values of energy utility demand and supply amounts within a specified period from the energy supply and demand prediction accuracy DB 2 for each predetermined calculation cycle that is an operation cycle of guidance.
- the prediction error estimation unit 3 estimates the prediction error of the future demand amount and supply amount of the energy utility using the calculated prediction amount of the demand amount and supply amount of the energy utility.
- the prediction error of the future demand amount and supply amount of the energy utility can be estimated, for example, by calculating the average value or the weighted average value of the prediction error of the demand amount and the supply amount at each time within the specified period. .
- the prediction error of the future demand amount and supply amount of the energy utility may be obtained for all energy utilities, or may be obtained only for the utility of interest.
- the prediction error estimation unit 3 estimates the difference between the estimation value of the prediction error of the future supply amount of the energy utility and the estimation value of the prediction error of the future demand amount of the energy utility to estimate the prediction error of the future supply and demand amount of the energy utility. As a value, the calculated value is output to the operating cost increase calculation unit 4.
- the operation cost increase amount calculation unit 4 calculates the increase amount of the energy utility supply and demand operation cost according to the estimated value of the prediction error of the future supply and demand amount of the energy utility output from the prediction error estimation unit 3. Specifically, for example, as shown in FIG. 3, when the prediction error of the future supply and demand amount of the energy utility increases, the supply and demand operation cost of the energy utility increases. Therefore, the relationship between the prediction error of the supply and demand amount and the increase in the supply and demand operation cost is analyzed in advance and converted into a function. By doing so, the amount of increase in supply and demand operating costs can be obtained. The operation cost increase amount calculation unit 4 outputs the calculated increase amount of the supply and demand operation cost to the operation cost correction unit 6.
- the optimization calculation unit 5 calculates the optimum supply and demand operation cost and supply and demand value of the energy utility by the optimization calculation. Specifically, the optimization calculation unit 5 uses the operation result data of the steel mill and the formula that preliminarily formulates the constraint condition and cost regarding the supply and demand operation of the energy utility as a mixed integer programming problem that is one of the mathematical programming problems. By inputting the operation plan information, the optimal supply and demand operation cost and the calculated supply and demand value (operation cost calculation value and supply and demand calculation value) of the energy utility are calculated. For the solution of the optimal solution, a branch and bound method or the like can be used, but details are described in prior art documents such as Non-Patent Document 1.
- the optimization calculation unit 5 calculates the actual value (operation cost actual value) of the supply and demand operation cost of the energy utility at the current time.
- the actual operation cost value can be considered as the supply and demand operation cost one calculation cycle ahead in the case of the current business operation.
- the optimization calculation unit 5 outputs the calculated operation cost calculation value and the operation cost actual value to the operation cost correction unit 6.
- the optimization calculation part 5 displays and outputs the information regarding the operating conditions of the steelworks on the guidance screen 8.
- the operation cost correction unit 6 calculates a value obtained by adding the increase amount of the operation cost output from the operation cost increase amount calculation unit 4 to the supply and demand operation cost calculation value output from the optimization calculation unit 5 as the operation cost correction value. . Then, the operation cost correction unit 6 outputs information about the operation cost calculation value, the operation cost correction value, and the operation cost actual value to the alarm display unit 7.
- the alarm display unit 7 displays alarm information on the guidance screen 8 according to the information output from the operation cost correction unit 6. Specifically, when the operation cost calculation value is lower than the actual operation cost value, and when the operation cost correction value is higher than the actual operation cost value, the supply and demand due to the prediction error of the energy utility supply and demand amount Operational costs are reversed. Therefore, in this case, if the guidance is followed, the cost increases, so the alarm display unit 7 displays the alarm information on the guidance screen 8. Similarly, if the calculated operating cost is lower than the actual operating cost value and the increase in supply and demand operating cost is greater than the standard value for supply and demand operating cost, the guidance effect and its reliability cannot be expected. The alarm display unit 7 displays alarm information on the guidance screen 8. The alarm display unit 7 displays the actual value of the supply and demand amount of the energy utility at the current time and the supply and demand amount calculation value calculated by the optimization calculation unit 5.
- the operator Based on whether the alarm information is displayed on the guidance screen 8 and the actual value of the supply and demand amount of the energy utility at the current time and the calculated supply and demand value calculated by the optimization calculation unit 5, the operator According to the output of the guidance device, it is determined whether to perform the supply and demand operation of the energy utility, or to perform the operation based on its own judgment. As a result, as a result of operating according to the output of the energy supply and demand operation guidance device, it is possible to suppress an increase in the operation cost of the energy utility due to a prediction error in the future supply and demand balance of the energy utility.
- the alarm display unit 7 has an operation cost actual value when the operation cost calculation value is lower than the operation cost actual value.
- the operation cost correction value is higher, or when the increase amount of the supply and demand operation cost calculated by the operation cost increase amount calculation unit 4 is equal to or greater than the set value, alarm information is displayed on the guidance screen 8.
- the alarm display unit 7 outputs the actual value of the energy utility supply and demand at the current time and the energy utility optimum supply and demand calculated by the optimization calculation unit 5. Thereby, it can suppress that the operating cost of an energy utility raises resulting from the prediction error of the future supply and demand balance of an energy utility.
- FIG. 4 shows a trend of the operation cost (operation cost calculation value, operation cost correction value, operation cost actual value) of the energy utility in the steelworks, and an alarm of the energy supply and demand operation guidance apparatus according to the embodiment of the present invention corresponding to the trend.
- the output timing is shown in FIG.
- the operation cost correction value ⁇ the actual operation cost value ⁇ the actual operation cost calculation value holds, as shown in FIG. 5, depending on the increase in the operation cost caused by the energy utility supply and demand prediction error shown in FIG. It can be seen that an alarm is output at 12:00 to 24:00.
- an energy supply and demand operation guidance apparatus and an energy supply and demand operation method in a steelworks that can suppress an increase in operation cost due to a prediction error in the future supply and demand balance of energy utilities.
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Abstract
Description
2 エネルギー需給予測精度データベース(DB)
3 予測誤差推定部
4 運用コスト上昇量算出部
5 最適化計算部
6 運用コスト補正部
7 アラーム表示部
8 ガイダンス画面
Claims (4)
- 製鉄所内におけるエネルギーユーティリティの需給運用作業を支援するエネルギー需給運用ガイダンス装置であって、
最適化計算によってエネルギーユーティリティの最適な需給運用コスト及びエネルギーユーティリティの最適需給量を算出する最適化計算部と、
現時刻を含む過去のエネルギーユーティリティの需給予測誤差の実績値を用いて、将来のエネルギーユーティリティの需給予測誤差の推定値を算出する予測誤差推定部と、
前記予測誤差推定部によって算出されたエネルギーユーティリティの需給予測誤差の推定値に応じた、エネルギーユーティリティの需給運用コストの上昇量を算出する運用コスト上昇量算出部と、
前記最適化計算部によって算出された需給運用コストに前記運用コスト上昇量算出部によって算出された需給運用コストの上昇量を加算した値を運用コスト補正値として算出する運用コスト補正部と、
現状の成り行き操業をした場合のエネルギーユーティリティの需給運用コストの実績値より前記最適化計算部によって算出された需給運用コストが低い場合、且つ、現状の成り行き操業をした場合のエネルギーユーティリティの需給運用コストの実績値より前記運用コスト補正値が高い場合又は前記運用コスト上昇量算出部によって算出された需給運用コストの上昇量が設定値以上である場合、アラーム情報を出力する機能と、現時刻におけるエネルギーユーティリティの需給量の実績値及び前記最適化計算部によって計算されたエネルギーユーティリティの最適需給量を出力する機能と、を有するアラーム出力部と、
を備えることを特徴とするエネルギー需給運用ガイダンス装置。 - 前記エネルギーユーティリティには、製鉄所内で発生した副生ガス、蒸気、及び電力のうちの少なくとも一つが含まれていることを特徴とする請求項1に記載のエネルギー需給運用ガイダンス装置。
- 前記運用コスト上昇算出部は、前記予測誤差を変数とする関数を用いて需給運用コストの上昇量を算出することを特徴とする請求項1又は2に記載のエネルギー需給運用ガイダンス装置。
- 請求項1~3のうち、いずれか1項に記載のエネルギー需給運用ガイダンス装置から出力された情報に従って、製鉄所内におけるエネルギーユーティリティの需給運用作業を行うステップを含むことを特徴とする製鉄所内のエネルギー需給運用方法。
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JP2016511453A JP6052467B2 (ja) | 2014-05-16 | 2015-05-11 | エネルギー需給運用ガイダンス装置及び製鉄所内のエネルギー需給運用方法 |
KR1020167030950A KR101852289B1 (ko) | 2014-05-16 | 2015-05-11 | 에너지 수급 운용 가이던스 장치 및 제철소내의 에너지 수급 운용 방법 |
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Cited By (6)
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CN106126770A (zh) * | 2016-05-31 | 2016-11-16 | 中国地质科学院矿产资源研究所 | 基于s形模型的钢铁需求预测方法 |
JP2018013918A (ja) * | 2016-07-20 | 2018-01-25 | 三菱自動車工業株式会社 | 物流費管理システム |
WO2021210290A1 (ja) | 2020-04-15 | 2021-10-21 | Jfeスチール株式会社 | エネルギー需給運用ガイダンス装置および製鉄所内のエネルギー需給運用方法 |
JP6954497B1 (ja) * | 2020-12-22 | 2021-10-27 | Jfeスチール株式会社 | エネルギー運用支援装置、エネルギー運用支援方法及び製鉄所の操業方法 |
TWI755986B (zh) * | 2020-12-22 | 2022-02-21 | 日商Jfe鋼鐵股份有限公司 | 能源運用支援裝置,能源運用支援方法及煉鋼廠的運轉方法 |
WO2022186330A1 (ja) | 2021-03-05 | 2022-09-09 | Jfeスチール株式会社 | エネルギー需給運用ガイダンス装置およびそのシステム、最適化計算サーバ装置および最適化計算サーバ装置用プログラム、ガイダンス端末装置およびガイダンス端末装置用プログラム、ならびに、事業所内のエネルギー需給運用方法およびエネルギー需給運用プログラム |
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Also Published As
Publication number | Publication date |
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JP6052467B2 (ja) | 2016-12-27 |
CN106462907A (zh) | 2017-02-22 |
KR101852289B1 (ko) | 2018-04-25 |
JPWO2015174359A1 (ja) | 2017-04-20 |
KR20160144421A (ko) | 2016-12-16 |
CN106462907B (zh) | 2021-08-10 |
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