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6th IEEE Conference on Energy Internet and Energy system Integration, EI2 2022

作者： Yang, Huan Cai, Dongsheng Bamisile, Olusola Li, Jian Zhang, Zhenyuan Huang, Qi Chengdu University of Technology School of Nuclear Technology and Automation Engineering Chengdu China University of Electronic Science and Technology of China Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control Chengdu China

ISBN: (纸本)9798350347159

In the context of carbon neutrality, the power industry is becoming the main battlefield of carbon emission reduction. However, the low-carbon transformation of energy structure is a complex long-term task, it needs to be analyzed in combination with the actual situation. This paper is based on the microgrid in the grid connection mode, considering microgrid power output and carbon emission constraints. An optimal model is proposed to reduce carbon emission cost, the optimal economic operation, and build a low-carbon scheduling model of a microgrid system. In this paper, the improved multi-objective particle swarm optimization algorithm is used to solve the problem. Finally, the simulation results verify the effectiveness of the model and the superiority of the improved algorithm. © 2022 IEEE.

关键词： Emission control

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Calculation and Simulation Analysis of Current Carrying Capacity and Thermal Effect of 500kV Tunnel Cable 6

Calculation and Simulation Analysis of Current Carrying Capa...

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6th IEEE Conference on Energy Internet and Energy system Integration, EI2 2022

作者： Liang, Ruipeng Huang, Qi Bamisile, Olusola Li, Jian Zhang, Zhenyuan Cai, Dongsheng Chengdu University of Technology School of Nuclear Technology and Automation Engineering Chengdu China University of Electronic Science and Technology of China Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control Chengdu China

ISBN: (纸本)9798350347159

The Qinghai-Tibet Plateau contains the most abundant clean energy such as hydropower, wind and solar in the world. However, it is very difficult to add overhead transmission lines on the ground due to the complex geographical environment. The large-capacity tunnel cables which is less affected by the earth surface environment, may play an important role on the energy transmission in such area. Based on the cable thermal circuit model, the electrical-magnetic-thermal multiphysics coupling of the cable is modeled in COMSOL Multiphysics. The parameter changes of the material during the temperature rising process, the influence of different ventilation conditions and different current-carrying capacities on the changes of the cable temperature field are quantitatively analyzed. The results show that the proposed model is valid in certain conditions. The research on the current carrying capacity and thermal effect of tunnel cables is of great significance for the transportation and consumption of large-scale clean energy resources. © 2022 IEEE.

关键词： Cables

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A Hierarchical Optimization-Based Model for Microgrids with Energy Storage Considering Operation Cost and Net Load Mean Square Error 6

A Hierarchical Optimization-Based Model for Microgrids with ...

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6th IEEE Conference on Energy Internet and Energy system Integration, EI2 2022

作者： Guan, Zexiang Cai, Dongsheng Bamisile, Olusola Li, Jian Zhang, Zhenyuan Huang, Qi Chengdu University of Technology School of Nuclear Technology and Automation Engineering Chengdu China University of Electronic Science and Technology of China Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control Chengdu China

ISBN: (纸本)9798350347159

When a high proportion of renewable energy is connected to the grid, the net load fluctuation can be suppressed by configuring energy storage. However, the current cost of energy storage is high. This paper proposes a bi-level optimization model that takes into account the dynamic allocation of shared energy storage (SES) capacity in response to electric load demand. The upper-layer objective function adopts EO optimization algorithm, which is to maximize the income of the shared energy storage operator (SESO). The lower-layer multi-objective function is to minimize the sum of the operating cost and the net load mean square error of multiple microgrids, which can be classified as the mixed integer linear programming problem. Then, the solution flow of the algorithm is given. Finally, under the constraints of the hierarchical optimization-based model, solving the problem by the CPLEX solver on the MATLAB platform. The results demonstrate that the proposed method can allocate optimal capacity and reduce operating costs for microgrids. Simultaneously, this method increases the revenue of SESO and promotes the consumption of renewable energy. © 2022 IEEE.

关键词： Mean square error

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Design and implementation of substation communication software for IED

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Dianli Xitong Baohu yu Kongzhi/power system Protection and control 2011年第24期39卷 132-137页

作者： Hu, Feng-Kai Huang, Qi Jing, Shi Li, Jing The Power System Wide-area Measurement and Control Key Laboratory of Sichuan Province University of Electronic Science and Technology of China Chengdu 611731 China

With the development of smart grid, Intelligent Electronic Device (IED) will be increasingly used in substation protection, control and measurement. A kind of substation communication software for variety of IEDs is designed and implemented. This paper focuses on the overall flow of the system, function library, multithreading architecture, and the design of database. This software utilizes the Modbus TCP/IP which is an openly published, efficient, and widely used communication protocol in the industrial automation field. In order to make the system have a strong scalability, this paper also describes the implementation guide of Modbus based on IPv6. Finally, the performance of the library and the real time capability of the overall system are tested respectively, indicating that this software meets the requirements of being efficient and stable, reliable in the communication of substation.

关键词： Software testing

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Performance Testing on GOOSE and MSV Transmission in One Network

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Energy Procedia 2011年 12卷 185-191页

作者： Jing Li Qi Huang Feng-kai Hu Shi Jing Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control University of Electronic Science and Technology of China (UESTC) Chengdu Sichuan China

lEC 61850 “Communication networks and systems in substation” is not only the most advanced and universal standard for communication but also a comprehensive system oriented standard for substation automation system (SAS). This paper proposes a transmission solution for communication scheme which combines Multicast Sampled Value (MSV) and Generic Object Oriented Substation Event (GOOSE) information in one network (Transmit MSV and GOOSE simultaneously with a network transmission line). MSV and GOOSE are described detail in the next context, and then the traffic flow and the delay of the two messages are estimated respectively. In this article, transmission performance tests based on the architecture of a single network are designed and implemented. The single event and multi-event tests show that the latency of the packets is quite small and the real-time performance satisfies the requirement of the intelligent substation.

关键词： IEC 61850 MSV GOOSE SAS Transmission performance

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Development of a tool for the analysis of power system higher order oscillation

Development of a tool for the analysis of power system highe...

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IEEE General Meeting power& Energy Society

作者： Zhouqiang Wang Qi Huang Changhua Zhang Sichuan Provincial Key Laboratory of Power System Wide-area Measurement and Control University of Electronic Science and Technology Chengdu Sichuan China

The analysis of higher order modal interaction attracts much attention from scholars all over the world. The normal form theory and the modal series method offer new ideas for solving these problems. However, literature review and simulation show that modal analysis for a certain case with these approaches may obtain different results. In this paper, the currently available methods are integrated into a tool PSMAT (power system modal analysis tool), so that one can compare the results with different approaches, and then select the most appropriate method for his analysis purpose. The developed tool has all the functionalities in modal analysis as well as the quantitative indices. The design of the tool is described and case studies are presented. The results obtained with this tool are discussed. It is verified that this tool is effective, in both modal analysis and comparison of the approaches.

关键词： power system analysis computing Modal analysis power system modeling power system simulation power system stability power system interconnection Taylor series Signal analysis Performance analysis Equations

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Design of an adaptive on-load de-icing scheme for overhead power transmission line

Design of an adaptive on-load de-icing scheme for overhead p...

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IEEE General Meeting power& Energy Society

作者： Qi Huang Yong Chen Changhua Zhang Sichuan Provincial Key Laboratory of Power System Wide-area Measurement and Control University of Electronic Science and Technology Chengdu Sichuan China

This paper reports part of the results in the project to develop an on-load de-icing system. In the system, a high frequency high voltage excitation with adjustable frequency, is used to de-ice the ice covered on long power transmission line. The system is highly efficient in de-icing due to the joint heating effect brought by transmission line loss and dielectric loss. The mathematical model of the system is developed. And on the basis of analysis and numerical simulation results, an adaptive scheme is designed. In the system, networked sensors are deployed to monitor the ice condition on transmission line, and on-line regulate the frequency of the high-voltage excitation according to the monitored ice information, to ensure that there is no severe ice-covering spot on long transmission line.

关键词： power transmission lines Frequency Ice Dielectric losses Propagation losses Condition monitoring Voltage Heating Mathematical model Numerical simulation

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New type of fiber optic sensor network for smart grid interface of transmission system

New type of fiber optic sensor network for smart grid interf...

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IEEE General Meeting power& Energy Society

作者： Qi Huang Changhua Zhang Qunying Liu Yan Ning Yongxing Cao Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control University of Electronic Science and Technology Chengdu Sichuan China Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control SICHUAN Electric Power Test and Research Institute Chengdu Sichuan China

Smart Grid is aimed to incorporate monitoring, analysis, control and communication capabilities to improve reliability and energy efficiency. However, currently there is no enough sensor to provide information interface for the implementation of smart grid. Therefore, new types of sensors should be deployed to assist the implementation of smart grid. This paper proposes a novel scheme, in which new type of fiber optic sensors (as compared with traditional Farady effect based fiber optic sensor used in power system instrumentation) are used to provide multiple types of information for smart grid. The new Fiber Bragg Gratting (FBG) is advantageous in that it can collect variant types of information and can form a sensor network. A transmission line monitoring system with distributed fiber optic senor network is designed, and the procedures to evaluate the status of the overhead transmission line (such as sag, vibration, and galloping) are proposed. A testing setup is built at laboratory, and it is shown that the FBG sensor is capable of obtaining the comprehensive information for evaluating the status of the overhead transmission line.

关键词： power transmission lines Optical fiber sensors Transmission line measurements Optical fibers Fiber gratings Temperature measurement

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Hierarchical control Scheme for VSC-MTDC system with multiple Renewable Energy Sites Based on Optimal power Flow and Droop Scheme 6

Hierarchical Control Scheme for VSC-MTDC System with multipl...

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6th IEEE Conference on Energy Internet and Energy system Integration, EI2 2022

作者： Raza, Asif Huang, Qi Li, Jian Bamisile, Olusola Dongsheng, Cai Raza, Ghalib University of Electronic Science & Technology of China Sichuan Provincial Key Lab of Power System Wide -Area Measurement and Control School of Mechanical and Electrical Engineering China Chengdu University of Technology College of Nuclear and Automation Engineering Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control School of Mechanical and Electrical Engineering University of Electronic Science & Technology of China China University of Electronic Science & Technology of China China Chengdu University of Technology College of Nuclear and Automation Engineering Sichuan China Benazir Bhutto Shaheed University of Technology & Skill Development Khairpur Pakistan

ISBN: (纸本)9798350347159

This paper designs a hierarchical control system to improve control performance in a multi-terminal high voltage direct current based on the voltage source converter (VSC-MTDC) transmission system. In this control scheme, the primary control layer employs droop control, while the secondary control layer has developed optimal power flow control (OPF) for maintaining the variation of DC voltage and regulating the active power, and simultaneously minimizing power loss. In the event of a power disturbance or a change in power generation or consumption in the DC system, based on OPF results a new stable droop operating mode is established to stabilize DC voltage variation and regulate active power in the network. A ±400 kV four-terminal VSC-MTDC test network has been developed by using PSCAD and MATLAB simulation tools to assess the proposed control scheme. The primary controller is designed in PSCAD, and the secondary optimum control technique is applied in MATLAB. The results of steady-state and transient operating modes demonstrate that the planned control technique can achieve DC voltage regulation and keep active power, and minimize the power losses in the MTDC system. © 2022 IEEE.

关键词： MATLAB

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Blockchain Based Domestic Appliances Scheduling in Community Microgrids

Blockchain Based Domestic Appliances Scheduling in Community...

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2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019

作者： Afzal, M. Umer, Khalid Amin, Waqas Naeem, M. Cai, Dongshang Zhenyuan, Zhang Huang, Qi Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China Chengdu611731 China Department of Electrical and Computer Engineering COMSATS University Islamabad Wah Campus Pakistan

ISBN: (纸本)9781728135205

This paper proposes an optimization model for community microgrid. The proposed scheme performs the scheduling of domestic appliances in a community microgrid using renewable energy resources. The objective of the scheme is to minimize the total operating cost in the whole community. The optimization problem is solved using the branch and bound algorithm. Blockchain (BC) technology is introduced for secure implementation of the proposed approach. Machine to machine interaction is facilitated using BC technology. The transaction information/ data is stored in the distributed shared ledger. The smart contract is used to automatically trigger the flow of electricity and the movement of funds once the necessary conditions are met. © 2019 IEEE.

关键词： Blockchain

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