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Distributionally robust electricity-carbon collaborative scheduling of integrated energy systems based on refined joint model of heating networks and buildings

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Renewable Energy 2025年 251卷

作者： Haipeng Chen Jianzhao Song Zhiwei Li Siyuan Shui Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology Ministry of Education Northeast Electric Power University Jilin 132012 China Department of Electrical Engineering Northeast Electric Power University Jilin 132012 China School of Automation and Engineering Northeast Electric Power University Jilin 132012 China Northeast Electric Power University Jilin 132012 China

The rapid increase in the grid integration demand of intermittent renewable energy (RE) has raised higher requirements for the flexible regulation and energy storage capacity of integrated energy systems (IES) with combined heat and power (CHP) units. To solve the issues of efficient accommodation of high proportion RE and low-carbon economic operation of the system, this study proposes an optimal scheduling method for IES based on a refined joint model of heating networks and buildings. Firstly, a refined thermal energy transmission model integrating heating networks and buildings is established to accurately depict the dynamic thermal energy transmission process within the system. Then, this paper proposes an electricity - carbon demand response considering the dynamic carbon emission factor, guiding users to use electricity in a low-carbon way. A distributionally robust optimization (DRO) scheduling model is established to quantify the impact of RE output uncertainty, which is efficiently solved using the column and constraint generation algorithm. The simulation results show that the proposed DRO model ensures the robustness of system operation while improving low-carbon economic benefits. Notably, the RE consumption rate is increased by 9.52 % compared with traditional scheduling methods, which provides an essential reference for promoting the sustainable development of IES.

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A method for generating wind power output scenarios based on improved conditional generative diffusion model

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Electric power systems Research 2025年 247卷

作者： Liu, Wei Wang, Changgang Cao, Yu Liang, Dong Li, Yang Mo, Jingshan Key Laboratory of Modern Power System Simulation and Control and Renewable Energy Technology Ministry of Education Northeast Electric Power University Jilin Jilin132012 China School of Electrical Engineering Northeast Electric Power University Jilin Jilin132012 China Jilin Power Supply Company Substation Secondary Maintenance Center Jilin Province Jilin132012 China

With the large-scale integration of wind power into the grid, accurately characterizing wind power uncertainty is crucial for power system *** address this, we propose an improved conditional generative diffusion model(ICGDM) for generating wind power output *** model is built upon a theoretical framework combining Markov chains and variational inference. First, a forward process transforms historical data into pure noise. Then, a reverse process, guided by conditional information, reconstructs scenarios that conform to the target distribution. Additionally, the noise schedule is modified to a cosine function, enhancing the quality of generated ***, the method is applied to wind power output data from the Flanders region. Results demonstrate that the proposed approach effectively and reliably generates wind power output scenarios with strong adaptability. © 2025 Elsevier B.V.

关键词： Markov chains

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Analysis of Subsynchronous Torsional Vibration of Wind-Thermal Bundling Delivery system via LCC-HVDC 6

Analysis of Subsynchronous Torsional Vibration of Wind-Therm...

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6th IEEE International Electrical and Energy Conference, CIEEC 2023

作者： Zhao, Yue Yan, Gangui Wang, Zhenyang Ren, Shuang Wang, Dazhong Guo, Jianyu Northeast Electric Power University Key Laboratory of Modern Power System Simulation Control and Green Power Technology Dept. Ministry of Education Jilin China

ISBN: (纸本)9798350346671

Recently, Wind-thermal bundled transmission via LCC-HVDC has become the main way of wind energy development and utilization in my country at present and in the future. The complex interaction between wind turbines, thermal power units, and LCC-HVDC needs to be further studied. In this paper, aiming at the direct-drive wind turbine group, thermal power unit and HVDC, the linearization model of the system is established, and the interactive coupling relationship between the connected equipment and the electrical damping of the thermal power unit is analyzed, and the mechanism of torsional vibration of thermal power unit shafting caused by wind-thermal bundling via LCC-HVDC is studied. mechanism. Based on the complex torque coefficient method, the influence of factors such as wind speed, control parameters, HVDC transmission power and control parameters on the electrical damping coefficient of thermal power units is studied. Finally, a time-domain simulation model is built in PSCAD/EMTDC, and the effectiveness of the electrical damping coefficient analysis results is verified through time-domain simulation and time-frequency analysis. © 2023 IEEE.

关键词： Wind

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Analytic Mechanism for the Cumulative Effect of Wind power Fluctuations from Single Wind Farm to Wind Farm Cluster

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CSEE Journal of power and Energy systems 2022年第5期8卷 1290-1301页

作者： Gang Mu Fangze Wu Xiaoping Zhang Ziheng Fu Bai Xiao Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology Ministry of Education(Northeast Electric Power University)Jilin 132012China Department of Electronic Electrical and Systems EngineeringSchool of EngineeringUniversity of BirminghamBirmingham B152TTU.K

The use of wind power is rapidly growing worldwide as a means of reducing carbon emissions for the energy *** has the world’s largest wind power installation and multiple large-scale wind farm clusters,each comprising dozens of wind *** the planning and operation of the power system,it is important to understand the power fluctuation characteristics of wind farm *** studies demonstrate that the relative power fluctuation of a wind farm cluster is less than that of a single wind *** this decreasing trend a random occurrence or does it have a regular pattern?This scientific question is addressed by investigating the mechanism of the cumulative effect of a wind farm *** this study,a cumulative model is proposed by examining the spatiotemporal relationships of wind power variations and wind farm *** gain function and critical cumulative frequency are defined as the foundations to analytically describing the cumulative *** investigating the cumulative effect mechanism,the relationship between power fluctuation and spatiotemporal parameters of the wind farm cluster are *** power fluctuation of a cluster can be predicted using the cumulative model even before it is completely *** mechanism of the cumulative effect is validated on the basis of the data of two actual wind farm clusters.

关键词： Analytic mechanism cumulative effect evolution regularity wind farm cluster wind power fluctuation

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Carbon Emissions Constraint Distributed Low-carbon Economic Dispatch of power system 7

Carbon Emissions Constraint Distributed Low-carbon Economic ...

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7th IEEE International Conference on power and Renewable Energy, ICPRE 2022

作者： Li, Junhui Shao, Yan Zhu, Xingxu Li, Cuiping Ministry of Education Northeast Electric Power University Key Laboratory of Modern Power System Simulation and Control and Renewable Energy Technology Jilin132012 China

ISBN: (数字)9781665450638

ISBN: (纸本)9781665450638

In order to meet the emission reduction requirements of integrated energy power system, the global inequality constraint is added to the economic dispatch model to reduce the carbon emission of the system by regulating the output of the unit, but it is difficult to achieve distributed solution. In order to solve the distributed low-carbon economic scheduling problem with global inequality constraints, a distributed economic scheduling solution method is proposed based on the existing research results. This method is based on dual theory and variable decomposition method to decompose it into sub-problems related to each virtual power generation unit (Agent). The alternating direction multiplier method (ADMM) algorithm is used to realize distributed economic scheduling through the exchange and iteration of Lagrange multiplier information between adjacent Agents, and meet the demand of "plug and play"of the optimization unit. Finally, the effectiveness of the proposed method is verified by an IEEE-6-bus system. © 2022 IEEE.

关键词： Lagrange multipliers

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Measurement of He2* density with an auxiliary measuring electrode in atmospheric pressure plasma jet

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Plasma Science and Technology 2019年第8期21卷 51-56页

作者： Bing QI Chunxu QIN Haikun SHANG Li XIONG Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology Ministry of EducationNortheast Electric Power UniversityJilin132012People’s Republic of China College of Biomedical Engineering Jilin Medical UniversityJilin132013People’s Republic of China

In this study, the density of metastable He2* in an atmospheric-pressure plasma jet operating in helium with 0.001% nitrogen has been measured using an auxiliary measuring electrode *** the glow discharge mode, waveforms from two grounding electrodes, including one main discharge electrode and one auxiliary electrode, are *** isolated current peak formed by Penning ionization in waveforms from the auxiliary measuring electrode is identified to calculate the density of metastable He2*.In our discharge environment, the helium metastable densities along the jet axis direction are between 2.26×1013 and 1.74×1013 cm-3,which is in good agreement with the results measured by other *** measurement technique can be conveniently applied to the diagnosis of metastable He2* in an atmospheric-pressure plasma jet array.

关键词： atmospheric plasma jet dielectric barrier discharge density of metastable helium

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Equivalence of stability criteria for time-delay systems

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Frontiers of Electrical and Electronic Engineering in China 2010年第2期5卷 207-217页

作者： Haiyun AN Hongjie JIA Yuan ZENG Wei WEI Key Laboratory of Power System Simulation and Control of Ministry of Education Tianjin UniversityTianjin 300072China

During the past few decades,there have been a number of new delay-dependent stability criteria based on linear matrix inequalities published in the *** criteria,to some extent,can reduce the *** fact,some criteria are *** this paper,we aim to theoretically establish equivalence of two stability *** was obtained by Sun et al.[Sun et ***:Proceedings of IEEE power&Energy Society General Meeting.2009,1–7]and the other was given by Xu et al.[Xu et *** Transactions on Automatic control,2005,50(3):384–387].Also,we theoretically establish equivalence of the robust stability criterion presented by Jia et al.[Jia et *** of Electric power systems,2010,34(3):6–11]and the one given by Xu et al.(2005).

关键词： delay-dependent stability criterion robust stability time-delay systems linear matrix inequality(LMI)

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Short-Term Load Forecasting of Smart Grid Based on Load Spatial-Temporal Distribution

Short-Term Load Forecasting of Smart Grid Based on Load Spat...

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2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019

作者： Yan, Gangui Han, Tianyi Zhang, Wei Zhao, Shujian Key Laboratory of Modern Power System Simulation and Control and Renewable Energy Technology Ministry of Education Northeast Electric Power University Ji Lin China

ISBN: (纸本)9781728135205

Various incentives in the smart grid, which force power consumer to take respond demand and change the characteristics of load, will affect power load forecasting. In this paper, it is concluded that the load spatial-temporal distribution and the load are relevant in the smart grid, and the impact of load spatial-temporal distribution is considered in forecasting model. It sifted multivariate load series highly relevant to prediction point with correlation analysis, and modeled the load series from the viewpoint of time with long short-term memory (LSTM). By comparing with the artificial neural network and support vector machine, it is verified that the model proposed has higher accuracy. © 2019 IEEE.

关键词： Long short-term memory

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FAULT DIAGNOSIS METHOD FOR DC DISTRIBUTION NETWORKS BASED ON SEMITENSOR PRODUCT BAYESIAN NETWORKS 6

FAULT DIAGNOSIS METHOD FOR DC DISTRIBUTION NETWORKS BASED ON...

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6th International Scientific and Technical Conference Relay Protection and Automation, RPA 2023

作者： Wang, He Li, Shiqiang Yu, Huanan Bian, Jing Wei, Bo Key Laboratory of Modern Power System Simulation and Control and Renewable Energy Technology Ministry of Education Northeast Electric Power University Jilin132012 China

ISBN: (纸本)9798350382334

关键词： Bayesian networks

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power grid frequency regulation participated by photovoltaic generation to adapt to different control modes of grid-side AGC 8

Power grid frequency regulation participated by photovoltaic...

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8th Renewable power Generation Conference, RPG 2019

作者： Yan, Gangui Hu, Wenbo Jia, Qi Wang, Dan Zhou, Guoqing Key Laboratory of Modern Power System Simulation and Control and Renewable Energy Technology Ministry of Education Northeast Electric Power University Jilin132012 China

ISBN: (纸本)9781839531255

Large-scale grid-connection of photovoltaic (PV) generation causes the power system to face the problem of insufficient inertia and insufficient frequency modulation capability. One of the important means to solve this problem is to take part in grid frequency regulation actively. On the basis of spare certain active power, this paper puts forward the active power-frequency droop control strategy. By modifying the original control structure of the inverter, PV generation actively takes part in the grid frequency primary regulation. In order to achieve non-error adjustment of frequency, this paper further proposes a secondary frequency regulation control strategy that adapts to different grid-side AGC control modes (constant frequency control mode, constant tie line power control mode and tie line power frequency deviation control mode). The effectiveness and feasibility of the control strategies are verified based on the PSCAD/EMTDC simulation platform. © 2019 Institution of Engineering and Technology. All rights reserved.

关键词： Frequency modulation

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