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The Improvement of Genetic Algorithm and Its Application in the Optimal Operation of Reservoirs

Zhong Denghua,Xiong Kaizhi,Cheng Liqin

Strategic Study of CAE 2003, Volume 5, Issue 9,   Pages 22-26

Abstract:

Genetic algorithms search for the optimal solution by continually improving the individual of theselection operator in SGA, a new genetic algorithm(AGA) is proposed to solve the problems about the optimaloperation of reservoirs.A new coding method is presented which is based on the subscript sequence of reservoir capacity arrayoperation of reservoirs.

Keywords： genetic algorithm     improvement     reservoir     optimal operation    

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A Pareto Strength SCE-UA Algorithm for ReservoirOptimization Operation

Lin Jianyi,Cheng Chuntian,Gu Yanping,Wu Xinyu

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 80-82

Abstract: justify;">In this paper,  the Pareto strength SCE-UA algorithm (PSSCE) is presented to handle the reservoiroptimization operation problem.

Keywords： reservoir optimal operation     constrained optimization     Pareto dominate     Pareto strength     SCE-UA algorithm    

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Operation and regulation of Three Gorges Reservoir

Zhang Shuguang,Zhou Man

Strategic Study of CAE 2011, Volume 13, Issue 7,   Pages 61-65

Abstract:

Since the impoundment of Three Gorges Reservoir in 2003, the constructionseason, the flood resources were fully utilized and the water lever reached 175 m first with the joint operationThen the project began to give full play to its comprehensive benefits during the normal operation period

Keywords： operation and regulation     Three Gorges Project    

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Integrated Optimization and Management of Mining Engineering—Coordinative Operation and Optimal Management

An-lin Shao,Rui-yu Yin

Frontiers of Engineering Management 2014, Volume 1, Issue 2,   Pages 153-159 doi: 10.15302/J-FEM-2014023

Abstract: In the view of engineering philosophy, the mining engineering is a dynamic operating process of ferrous material flow, in which the ferrous material flow is processed orderly through a series of continual coordinated procedures. It is also a process of discarding the dross, selecting the essential, and extracting the original metal. The object of management is to fulfill the multi-objective optimization. The proportion of lean ores in iron ore resources is 82% in the world and even 97% in China but their utilization is very low. Aiming at the bottleneck and weakness of China’s resource development, this paper analyzes and plans the mining engineering system as a whole based on the ideas and methods of system theory and engineering philosophical thinking. And the paper proposes the “grade decision-based multi-system integration” engineering management mode, which considers the relationship between engineering and environment and complies with the natural law. In the mode, the mining engineering, including geologic mining, ore blending, concentration and pelleting, can be viewed as a whole and the geological grade, mined ore grade, feed grade, concentrate grade and feed grade of blast furnace can be considered comprehensively. The mode reflected the overall structural optimization idea, realized the analysis, coordination and optimization among the multiple functions and processes, and thus drove the overall efficient and profit optimization throughout the processing flow. The establishment and the application of the “grade decision-based multi-system integration” mode have solved the lean iron ores exploitation problem and supported the “self-sufficiency” resource strategy.

Keywords： multi-system integration     engineering management     objective optimization     lean ores exploitation     engineering philosophy     mode    

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Optimal operation of microgrid using hybrid differential evolution and harmony search algorithm

S. SURENDER REDDY,Jae Young PARK,Chan Mook JUNG

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 355-362 doi: 10.1007/s11708-016-0414-x

Abstract: The proposed optimal scheduling problem is solved using the hybrid differential evolution and harmony

Keywords： battery storage     electric vehicles (EVs)     microgrid (MG)     optimal scheduling     solar photovoltaic (PV) system    

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Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 17-26 doi: 10.1007/s11709-016-0369-3

Abstract: Optimal application of pavement preservation or preventive maintenance is critical for highway agenciescost analysis (LCCA) model to quantify the impact of pavement preservation on agency cost and vehicle operationcost (VOC) and analyzed the optimal timing of preservation treatments.The optimal timing calculated based on VOC is always earlier than the optimal timing calculated basedThere are considerable differences among the optimal timing of three preservation treatments.

Keywords： pavement preservation     life-cycle cost analysis     agency cost     vehicle operation cost    

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Optimal operation of integrated energy system including power thermal and gas subsystems

Frontiers in Energy 2022, Volume 16, Issue 1,   Pages 105-120 doi: 10.1007/s11708-022-0814-z

Abstract: Focusing mainly on model building and optimal operation of the integrated energy system, in this paperequation, and the alternating direction method of multipliers (ADMM) method is applied to narrow the optimalThe entire system reaches its optimal operation through multiple iterations.

Keywords： integrated energy system     power-to-gas     dist-flow     piecewise linearization     alternating direction method of multipliers (ADMM)    

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Optimal Timing and Recycling Operation Mode for Electro-Mechanical Products Active Remanufacturing

Wang Gao,Tao Li,Shi-tong Peng,Liang Wang,Hong-chao Zhang

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 115-122 doi: 10.15302/J-FEM-2016019

Abstract: Based on life cycle assessment method and the life cycle cost analysis, the optimal timing model of activeactive remanufacturing as its guidance, this study explores the economic efficiency and corresponding operationmode of electro-mechanical products when recycling in the optimal timing.To validate the optimal timing model for electro-mechanical products active remanufacturing, a specific

Keywords： electro-mechanical products     active remanufacturing     optimal timing     reverse logistics     recycling mode    

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An Ecologically Oriented Operation Strategy for a Multi-Reservoir System: A Case Study of the Middle Article

Hao Wang,Xiaohui Lei,Denghua Yan,Xu Wang,Shuyue Wu,Zhengjie Yin,Wenhua Wan

Engineering 2018, Volume 4, Issue 5,   Pages 627-634 doi: 10.1016/j.eng.2018.09.002

Abstract: for a multi-reservoir system that integrates environmental flow requirements into the joint operationThis strategy is a combination of a regular optimal operation scheme and a series of real-time ecologicalThe practical use of this strategy is demonstrated for the simulation operation of a large-scale multi-reservoirThe ecologically oriented operation strategy for a multi-reservoir system that is proposed in this studyenriches the theoretical application of the multi-reservoir system joint operation which considers environmental

Keywords： Multi-reservoir system     Ecologically oriented operation     Environmental flow requirements     Han River Basin    

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The Optimal Control Model of Reservoir Operations andSolving With Maximum Principle

Fang Qiang,Wang Xianjia, Fang Debin

Strategic Study of CAE 2007, Volume 9, Issue 4,   Pages 55-59

Abstract: "text-align: justify;">This paper tries to describe the continuous transformation characteristic of reservoiroperations with optimal control theory.After constructing the optimal control model of reservoir o perations, the paper presents the necessarycondition of optimal control of reservoir operations using maximum principle and analyzes the characteristicand concrete expression of optimal control strategy of reservoir operations in different conditions

Keywords： water conservancy management     optimal control model     maximum principle     reservoiroperations    

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Optimal Scheduling of Variable-pressure Variable-flow Operation of Inverter-drive Pumps Connected in

Li Hongbin,Zhang Chenghui,Song Jun

Strategic Study of CAE 2001, Volume 3, Issue 9,   Pages 52-57

Abstract:

The paper analyzes common methods for the optimal scheduling modeling problem of variable-pressurevariable-flow operation of inverter-drive pumps connected in parallel and compares the merits and defectsThe paper proposes a new modeling method, which is compatible with the actual operation and has higher

Keywords： optimal scheduling     nonlinear bounded programming     speed regulation of pumps    

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research and practice for key techniques of comprehensive utilization and regulation for Three Gorges Reservoir

Liu Dayan,Ji Guoqiang,An Yougui

Strategic Study of CAE 2011, Volume 13, Issue 7,   Pages 66-69

Abstract: text-align: justify;">In order to improve the comprehensive benefits of Three Gorges Project (TGP), the optimalresearch and practice of planned reservoir regulation mode have been made since the impoundment of ThreeGorges Reservoir.flood control, power generation, navigation, water supply and ecological protection, risk control of reservoir

Keywords： Three Gorges Reservoir     comprehensive utilization     optimal regulation decision     risk control    

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Optimal operation of energy at hydrothermal power plants by simultaneous minimization of pollution and

Homayoun EBRAHIMIAN,Bahman TAHERI,Nasser YOUSEFI

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 426-432 doi: 10.1007/s11708-015-0376-4

Abstract: The aim of this paper is simultaneous minimization of hydrothermal units to reach the best solution by employing an improved artificial bee colony (ABC) algorithm in a multi-objective function consisting of economic dispatch (ED) considering the valve-point effect and pollution function in power systems in view of the hot water of the hydro system. In this type of optimization problem, all practical constraints of units were taken into account as much as possible in order to comply with the reality. These constraints include the maximum and minimum output power of units, the constraints caused by the balance between supply and demand, the impact of pollution, water balance, uneven production curve considering the valve-point effect and system losses. The proposed algorithm is applied on the studied system, and the obtained results indifferent operating conditions are analyzed. To investigate in various operating conditions, different load profiles in 12 h are taken into account. The obtained results are compared with those of the other methods including the genetic algorithm (GA), the Basu technique, and the improved genetic algorithm. Fast convergence is one of this improved algorithm features.

Keywords： practical constraints of units     pollution function     inlet steam valve     up-ramp rate of units     improved ABC algorithm    

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The analysis on reservoir sediment deposition and downstream river channel scouring after impoundmentand operation of TGP

Lu Jinyou,Huang Yue,Wang Jun

Strategic Study of CAE 2011, Volume 13, Issue 7,   Pages 129-136

Abstract:

According to the measured data after impoundment and operation of theThree Gorges Reservoir, the reservoir sediment deposition and downstream river channel scouring areIt is indicated through analysis that the reservoir sediment deposition and downstream river channelscouring during 8-year impoundment and operation are still within the original forecast, so the original

Keywords： Three Gorges Project     trial impoundment     reservoir sediment deposition     downstream river channel scouring    

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Optimal Operation of Integrated Heat and Electricity Systems: A Tightening McCormick Approach Article

Lirong Deng, Hongbin Sun, Baoju Li, Yong Sun, Tianshu Yang, Xuan Zhang

Engineering 2021, Volume 7, Issue 8,   Pages 1076-1086 doi: 10.1016/j.eng.2021.06.006

Abstract:

Combined heat and electricity operation with variable mass flow rates promotes flexibility, economySuch combined operation presents a highly nonlinear and nonconvex optimization problem, mainly due toglobal bilinear solver, the proposed tightening McCormick method quickly solves the heat-electricity operation

Keywords： Integrated heat and electricity system     Convex relaxation     Operation     McCormick envelopes    

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Title Author Date Type Operation

The Improvement of Genetic Algorithm and Its Application in the Optimal Operation of Reservoirs

Zhong Denghua,Xiong Kaizhi,Cheng Liqin

Journal Article

A Pareto Strength SCE-UA Algorithm for ReservoirOptimization Operation

Lin Jianyi,Cheng Chuntian,Gu Yanping,Wu Xinyu

Journal Article

Operation and regulation of Three Gorges Reservoir

Zhang Shuguang,Zhou Man

Journal Article

Integrated Optimization and Management of Mining Engineering—Coordinative Operation and Optimal Management

An-lin Shao,Rui-yu Yin

Journal Article

Optimal operation of microgrid using hybrid differential evolution and harmony search algorithm

S. SURENDER REDDY,Jae Young PARK,Chan Mook JUNG

Journal Article

Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Journal Article

Optimal operation of integrated energy system including power thermal and gas subsystems

Journal Article

Optimal Timing and Recycling Operation Mode for Electro-Mechanical Products Active Remanufacturing

Wang Gao,Tao Li,Shi-tong Peng,Liang Wang,Hong-chao Zhang

Journal Article

An Ecologically Oriented Operation Strategy for a Multi-Reservoir System: A Case Study of the Middle

Hao Wang,Xiaohui Lei,Denghua Yan,Xu Wang,Shuyue Wu,Zhengjie Yin,Wenhua Wan

Journal Article

The Optimal Control Model of Reservoir Operations andSolving With Maximum Principle

Fang Qiang,Wang Xianjia, Fang Debin

Journal Article

Optimal Scheduling of Variable-pressure Variable-flow Operation of Inverter-drive Pumps Connected in

Li Hongbin,Zhang Chenghui,Song Jun

Journal Article

research and practice for key techniques of comprehensive utilization and regulation for Three Gorges Reservoir

Liu Dayan,Ji Guoqiang,An Yougui

Journal Article

Optimal operation of energy at hydrothermal power plants by simultaneous minimization of pollution and

Homayoun EBRAHIMIAN,Bahman TAHERI,Nasser YOUSEFI

Journal Article

The analysis on reservoir sediment deposition and downstream river channel scouring after impoundmentand operation of TGP

Lu Jinyou,Huang Yue,Wang Jun

Journal Article

Optimal Operation of Integrated Heat and Electricity Systems: A Tightening McCormick Approach

Lirong Deng, Hongbin Sun, Baoju Li, Yong Sun, Tianshu Yang, Xuan Zhang

Journal Article