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State Transition Modeling Method for optimal dispatching for Integrated Energy System Based on Cyber-Physical System

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Journal of Modern Power Systems and Clean Energy 2024年第5期12卷 1617-1630页

作者： Yi Yang Peng Zhang Can Wang Zhuoli Zhao Loi Lei Lai the Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station College of Electrical Engineering and New EnergyChina Three Gorges UniversityYichangChina the Department of Electrical Engineering School of AutomationGuangdong University of TechnologyGuangzhouChina

The traditional energy hub based model has difficulties in clearly describing the state transition and transition conditions of the energy unit in the integrated energy system(IES).Therefore,this study proposes a state transition modeling method for an IES based on a cyber-physical system(CPS)to optimize the state transition of energy unit in the *** method uses the physical,integration,and optimization layers as a three-layer modeling *** physical layer is used to describe the physical models of energy units in the *** the integration layer,the information flow is integrated into the physical model of energy unit in the IES to establish the state transition model,and the transition conditions between different states of the energy unit are *** optimization layer aims to minimize the operating cost of the IES and enables the operating state of energy units to be transferred to the target *** simulations show that,compared with the traditional modeling method,the state transition modeling method based on CPS achieves the observability of the operating state of the energy unit and its state transition in the dispatching cycle,which obtains an optimal state of the energy unit and further reduces the system operating costs.

关键词： Integrated energy system(IES) cyber-physical system(CPS) state transition modeling optimal dispatching

System Modeling and optimal dispatching of Multi-energy Microgrid with Energy Storage

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Journal of Modern Power Systems and Clean Energy 2020年第5期8卷 809-819页

作者： Liting Tian Lin Cheng Jianbo Guo Kuihua Wu Department of Elec trical Engineering Tsinghua UniversityBeijingChina China Electric Power Research Institute BeijingChina Economic&Technology Research Institute State Grid Shan dong Electric Power CompanyJinanShandongChina

The coordinated operation and comprehensive utilization of multi-energy sources require systematic research.A multi-energy microgrid(MEMG)is a coupling system with multiple inputs and *** this paper,a system model based on unified energy flows is proposed to describe the static relationship,and an analogue energy storage model is proposed to represent the time-dependency characteristics of energy transfer ***,the optimal dispatching model of an MEMG is established as a mixed-integer linear programming(MILP)problem using piecewise linear approximation and convex ***,the system model and optimal dispatching method are validated in an MEMG,including district electricity,natural gas and heat supply,and renewable *** proposed model and method provide an effective way for the energy flow analysis and optimization of MEMGs.

关键词： Energy flow energy storage multi-energy microgrid(MEMG) optimal dispatching

Trends of optimal dispatching of microgrid for fishery based on model predictive control

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Information Processing in Agriculture 2022年第1期9卷 135-147页

作者： Ran Zhao Maozhi Miao Yuntao Ju College of Information and Electrical Engineering China Agricultural UniversityBeijing 100083China National Innovation Center for Digital Fishery Beijing 100083China

As a constrained optimization strategy,model predictive control(MPC)is widely used in the optimal dispatch of *** optimization and feedback correction strategy can effectively deal with the impact due to the system uncertainty and model mismatch which ensures the stable operation of the *** to the uncertainty of distributed power sources,MPC can be applied to solve the problem of renewable energy output in microgrid for *** paper reviews the optimal dispatch of microgrid for fishery based on model predictive ***,this article introduces the basic principles and classification of model predictive control,and then explains the remaining problems and research *** characteristics of the microgrid optimal dispatching problem are described,and the analysis are focused on how MPC solves the uncertain problems in the microgrid optimal ***,perspectives and the future research direction of model pre-dictive control in microgrid energy dispatch is reviewed.

关键词： Model predictive control Microgrid for Fishery optimal dispatching New energy

Two-Stage optimal dispatching of Wind Power-Photovoltaic-Solar Thermal Combined System Considering Economic optimality and Fairness

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Energy Engineering 2023年第4期120卷 1001-1022页

作者： Weijun Li Xin Die Zhicheng Ma Jinping Zhang Haiying Dong School of New Energy&Power Engineering Lanzhou Jiaotong UniversityLanzhou730000China China Petroleum Pipeline Engineering Corporation Langfang065000China Electric Power Research Institute of State Grid Gansu Electric Power Company Lanzhou730000China

Aiming at the problems of large-scale wind and solar grid connection,how to ensure the economy of system operation and how to realize fair scheduling between new energy power stations,a two-stage optimal dispatching model of wind power-photovoltaic-solar thermal combined system considering economic optimality and fairness is ***,the first stage dispatching model takes the overall economy optimization of the system as the goal and the principle of maximizing the consumption of wind and solar output,obtains the optimal output value under the economic conditions of each new energy station,and then obtains the maximum consumption space of the new energy ***,based on the optimization results of the first stage,the second stage dispatching model uses the dispatching method of fuzzy comprehensive ranking priority to prioritize the new energy stations,and then makes a fair allocation to the dispatching of the wind and solar ***,the analysis of a specific example shows that themodel can take into account the fairness of active power distribution of new energy stations on the basis of ensuring the economy of system operation,make full use of the consumption space,and realize the medium and long-term fairness distribution of dispatching plan.

关键词： Economic optimality fairness combined power generation the fuzzy comprehensive ranking priority optimal dispatching

optimal dispatching method of traffic incident rescue resource for freeway network

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Journal of Southeast University(English Edition) 2013年第3期29卷 336-341页

作者：柴干冉旭夏井新东南大学智能运输系统研究中心南京210096 东南大学常州研究院常州213014

An optimal resource dispatching method is proposed to solve the multiple-response problem under the conditions of potential incidents on freeway *** time of the response vehicle is selected instead of route distance as the weight to reflect the impact of traffic conditions on the decisions of rescue *** to the characteristics of different types of rescue vehicles the dispatching decision-making time is revised to show the heterogeneity among different rescue vehicle dispatching modes. The genetic algorithm is used to obtain the solutions to the rescue resources dispatching model. A case study shows that the proposed method can accurately reveal the impact of potential incidents on the costs of rescues according to the variations in the types and quantities of rescue resources and the optimal dispatching plan with respect to potential incidents can be *** proposed method is applicable in real world scenarios.

关键词： optimal dispatching potential incident geneticalgorithm rescue resource freeway network

Study　on　optimal　dispatching　Model　for　Multilake－Reservoir　System　of　Kaidu－Kongque　River　and　Tarim　River^（12）

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Systems Science and Systems Engineering 1994年第4期4卷 351-356页

作者： MEI Shengwei ZHANG Huaxiao and QI Wenhua(Department of mathsmatics,Xingjiang University, Urimqi, Xingjiang,830046,P.R.China)HAN Xiankun LU Xinsheng(Administration of Bainguolen water resource,Kurle,Xingjiang,830000,P.R.China)

In this paper, the optimal dispatching model for multilake-reservoir system of KaiduKongque River and Tarim river is studied with mathematical *** optimal dispatching models belong to large system theory,which considers both wator supply and the effect of science and technology. The computation results shows that the model is feasible.

关键词： optimal dispatching discharge reservoir storage

Multi-time Scale dispatching Strategy for EV Charging Considering Wind Power 36

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Multi-time Scale Dispatching Strategy for EV Charging Consid...

A robust optimization model for demand response management with source-grid-load collaboration to consume wind-power

第36届中国控制会议

作者： Yueshuang Bao Qilong Huang Zhifeng Qiu Chunsheng Wang Weihua Gui School of Information Science and Engineering Central South University Intelligent and Network System Research Center Tsinghua University

ISBN: (纸本)9781538629185

This paper investigates the double randomness matching mechanism between electric vehicle（EV） charging and wind power in a distribution network. The Markov Decision Process is employed to model the uncertainties of both EV and wind power. The optimized dispatching models and strategies for EV charging under multi-time scale are developed to achieve the objective *** goal of this function is to maximize matching degree between EV charging and wind power as well as minimize the power losses fully taking the physical constraints of distribution network into account. This actualizes dynamic control of EV charging. The simulation results on IEEE 5 node system and IEEE 30 node system demonstrate that the optimal dispatching method can reduce the network power losses and improve the matching degree between the EV charging and wind power.

关键词： Electric vehicle optimal dispatching wind power randomness Markov decision process matching degree network losses

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Global Energy Interconnection 2023年第6期6卷 738-750页

作者： Xiangfeng Zhou Chunyuan Cai Yongjian Li Jiekang Wu Yaoguo Zhan Yehua Sun Zhongshan Power Supply Bureau of Guangdong Power Grid Co. Ltd.Zhongshan 528401GuangdongP.R.China School of Automation Guangdong University of TechnologyGuangzhou 510006GuangdongP.R.China

To accommodate wind power as safely as possible and deal with the uncertainties of the output power of winddriven generators,a min-max-min two-stage robust optimization model is presented,considering the unit commitment,source-network load collaboration,and control of the load demand *** the constraint functions are linearized,the original problem is decomposed into the main problem and subproblem as a matrix using the strong dual *** minimum-maximum of the original problem was continuously maximized using the iterative method,and the optimal solution was finally *** constraint conditions expressed by the matrix may reduce the calculation time,and the upper and lower boundaries of the original problem may rapidly *** results of the example show that the injected nodes of the wind farms in the power grid should be selected appropriately;otherwise,it is easy to cause excessive accommodation of wind power at some nodes,leading to a surge in reserve costs and the load demand response is continuously optimized to reduce the inverse peak regulation characteristics of wind ***,the most economical optimization scheme for the worst scenario of the output power of the generators is obtained,which proves the economy and reliability of the two-stage robust optimization method.

关键词： Renewable power system optimal dispatching Wind-power consumption Source-grid-load collaboration Load demand response Two-stage robust optimization model