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Annual Conference of Industrial Electronics Society

作者： Yawen Ding Fei Gao Yingwei Jiang Kai Hou Donghui Zhang Xuewei Shi Key Laboratory of Control of Power Transmission and Conversion Ministry of Education College of Smart Energy Shanghai Jiao Tong University Shanghai China Dept. of Electrical Engineering Key Laboratory of Control of Power Transmission and Conversion Ministry of Education Shanghai Jiao Tong University Shanghai China NARI Group Corporation (State Grid Electric Power Research Institute) Nanjing China State Grid Jibei Zhangjiakou Wind and Solar Energy Storage and Transportation New Energy Co. Ltd Zhangjiakou China

To deal with the problem that uncertain parameter in Affinity Propagation (AP) clustering algorithm affects the clustering results, this paper proposes a clustering method based on AP clustering algorithm and Genetic Algorithm (GA) for Photovoltaic (PV) power stations. Firstly, the modeling of PV power stations is established and clustering index are determined according to the dynamic characteristics of PV power stations. Then the proposed method takes the silhouette index, which is used to evaluate the quality of the clustering result, as the fitness function of GA. The bias parameter placed on the main diagonal of the similarity matrix in the AP clustering algorithm is constantly iterated and updated until obtaining the optimization result. Finally, the studied case verifies the better clustering performance of the proposed method. The 20 PV power stations in the Taoling Substation can be simplified into three groups, reducing the complexity and calculation time for equivalent modeling.

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Carbon-oriented Local Integrated Energy System Multi-energy Coupling Market Design

Carbon-oriented Local Integrated Energy System Multi-energy ...

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IEEE Conference on Energy Internet and Energy System Integration (EI2)

作者： Jifeng Li Jinghua Li Xingtang He Hao Luo Dalian Electric Power Supply Company State Grid Liaoning Electric Power Supply Co. Ltd Dalian China Key Laboratory of the Ministry of Education on Smart Power Grids Tianjin University Tianjin China Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology Northeast Electric Power University Jilin China

ISBN: (纸本)9781665434263

Under the background that countries all over the world constantly advocate energy conservation and emission reduction and seek to deepen the reform of power systems and introduce new energy trading policies, this study constructed a carbon-oriented local integrated energy system multi-energy coupling market architecture. This construct was aimed at problems that current multi-energy coupling market research has not considered, including multi-energy substitution characteristics and carbon emission factors. First, taking the local integrated energy system as the main physical architecture, a multi-energy coupling market architecture was constructed combining the main market participants of different energy subsystems. Second, a model of the subsystem markets in the energy coupling market, and the joint clearing method were proposed. Finally, the guiding role of the energy coupling market was analyzed by simulation for reasonable pricing and carbon emission reductions of different energy market operators.

关键词： Couplings Analytical models Costs Uncertainty Energy conservation Carbon dioxide Pricing

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Analysis and Testing of U.S.-China key Technology for Charging Interoperability of Electric Vehicles

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IOP Conference Series: Earth and Environmental Science 2021年第1期701卷

作者： X Zhang J Cui W Zhang J D Ye X L Li NARI Group Corporation/State Grid Electric Power Research Institute Nanjing 211106 China State Key Laboratory of Smart Grid Protection and Control Nanjing Nanjing 211106 China

At present, China has overtaken the United states to become the world's largest new energy vehicle market. Due to differences in developmental trajectory, developmental mode, and charging standards, China and the U.S. have common interests and the foundation for cooperation, which can work together for a win-win development. Charging interoperability is the basis for ensuring charging safety and interchangeability of electric vehicles. This study examined and compared the differences between China and the U.S. in the standards for conductive AC charging of electric vehicles. The requirements for a control pilot circuit, proximity circuit, current capacity, and charging-state transition timing were analysed. Hierarchical and layered interoperability test cases based on GB/T 34657 and SAE J2953 series were presented. A dual interface interoperability test system was constructed and used to verify the test method rationale. The results provided a mutual inspection solution for AC charging equipment between China and the U.S. and accelerated global application and promotion of the electric vehicle industry.

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Calculation of the Maximum Hosting Capacity of Distributed Photovoltaics in Distribution Networks Considering Flexible Interconnections

Calculation of the Maximum Hosting Capacity of Distributed P...

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IEEE International Conference on Power and Power and Renewable Energy (ICPRE)

作者： Tong Sun Yi Song Kai Yuan Ruosong Hou Jiakun An Wenguang Jin Shenxi Zhang Haozhong Cheng College of Smart Energy Shanghai Jiao Tong University Shanghai China State Grid Economic and Technological Research Institute Co. Ltd. Beijing China Economic and Technological Research Institute of State Grid Hebei Electric Power Co. Ltd Hebei China Key Laboratory of Control of Power Transmission and Conversion Ministry of Education Shanghai Jiao Tong University Shanghai China

Large-scale access to distributed photovoltaics leads to power imbalance and frequent voltage fluctuations in distribution station areas, increasing the difficulty of operation control of distribution networks. To solve these challenges while improving the utilization rate of distributed photovoltaics, this study proposes a method for calculating the maximum hosting capacity (HC) of distributed photovoltaics in distribution networks, considering the flexible interconnection of low-voltage distribution station areas. First, two types of networking modes of the flexible interconnection of distribution station areas are analyzed and mathematical models are developed for them. Then, an optimization model of the maximum HC of distributed photovoltaics in a distribution network that considers the flexible interconnection of distribution station areas is established, and the increasingly tight linear-cut algorithm is used to solve it, which aims to narrow the gap introduced by the convex relaxation to get the optimal solution. Finally, the accuracy of the model and algorithm is checked in the modified IEEE 33-node distribution network.

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A Chip Data Security Transmission Method based on Command control Word Mode

A Chip Data Security Transmission Method based on Command Co...

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International Conference on Information Systems and Computer Aided Education (ICISCAE)

作者： Liu Jia Qingqin Fu Zhengquan Ang Qian Zhang Ling Yi Tingzheng Feng Xuesong Bai Yuejie Shi Beijing Smart Chip Microelectronics Technology Company Limited Beijing Electric Power High Reliability Integrated Circuit Design Engineering Research Center Beijing China Beijing aerospace flight control center Beijing China Beijing Smart Chip Microelectronics Technology Company Limited State Grid Key Laboratory of Power Industrial Chip Design and Analysis Technology Beijing China

ISBN: (数字)9781728130668

ISBN: (纸本)9781728130675

Aiming at the shortcomings of traditional security chip data transmission, a method of security chip data transmission based on command control word is proposed. The method divides the read command mode and write command mode of the security chip files into two kinds of representation methods. The read command and write command of the security chip files are transmitted by different data transmission methods. In the control word of read and write command mode of security chip files, the read and write commands of security chip files are transmitted in four ways: plaintext, ciphertext, plaintext + MAC and ciphertext + MAC. The properties of prohibit adding and updating are added to the writing command control word of security chip files. In the control word of read command and write command of security chip files, define the permissions that read command and write command operation need to satisfy.

关键词： Data communication Writing Authentication Process control Cryptography

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The operation analysis of the CCHP driven by Gas-steam combined cycle

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IOP Conference Series: Earth and Environmental Science 2020年第5期558卷

作者： Junyu Liang Xingyu Yuan Jiangqi Gu Yunnan Electric Power Research Institute CSG China NARI Group Co. Ltd The State Key Laboratory of Smart Grid Protection and Operation Control

In combined cooling heating and power system, the gas-steam combined cycle is gradually used more and more. The common operation mode in CCHP is mainly to determine heat by electricity and heat by electricity. This paper defines an index indicator and analyzes the difference between the two operating modes in different intervals through the system energy supply interval chart, finally analyzes the difference in the indicators between the two operating modes through the actual load method. It is concluded that in winter operating conditions, the following the thermal load (FTL) operation mode is better; in summer operating conditions, the indicator of following the electric load (FEL) is better; during the transition season, the value of PEC is better in the case of following the thermal load.

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A Frequency control Method that Allows Regulation Sharing Among Interconnected control Areas

A Frequency Control Method that Allows Regulation Sharing Am...

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Power and Electrical Engineering (ACPEE), 5th Asia Conference on

作者： Lifeng Wang Xiaobi Teng Hua Lin Bingbing Song Kangping Qin Yutong Li Zijie Chen Dispatch and Control Branch Center East China Branch of State Grid Corporation of China Shanghai China SPIC ShanDong Energy Marketing CO. LTD Jinan China College of Smart Energy Shanghai Jiao Tong University Shanghai China Key Laboratory of Control of Power Transmission and Conversion Ministry of Education Shanghai Jiao Tong University Shanghai China

ISBN: (数字)9798350309638

ISBN: (纸本)9798350309645

Current large-scale interconnected power grids predominantly adopt the Tie-Line Bias control (TBC), where each control area is independently responsible for the power balance within its region. However, under this control mode, if a control area within the interconnected grid lacks sufficient frequency regulation capacity, the frequency of the entire interconnected grid can be affected. To allow sharing of frequency regulation capacity across multiple control areas, this article proposes a market scheme for inter-area frequency regulation capacity sharing, along with a supporting frequency control method for interconnected power grids. After meeting their own frequency regulation capacity requirements, control areas can contribute surplus capacity to a regional frequency regulation capacity market. The awarded capacity is then centrally dispatched by the regional grid, with each control area using the TBC mode and the regional grid employing the Flat Frequency control(FFC) mode. Simulation results indicate that, compared to the traditional TBC mode, our proposed scheme effectively improves the frequency quality of the interconnected grid and achieves optimized resource allocation.

关键词： Electrical engineering Simulation Asia Power grids Regulation Steady-state Resource management

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Corrigendum to“Research on DC protection Strategy in Multi-Terminal Hybrid HVDC System”[Engineering 7(2021)1064-1075]

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Engineering 2022年第3期8卷 183-183页

作者： Yuping Zheng Jiawei He Bin Li Tonghua Wu Wei Dai Ye Li State Key Laboratory of Smart Grid Protection and Control State Grid Electric Power Research Institute(NARI Group Corporation)Nanjing 211106China Key Laboratory of Smart Grid of Ministry of Education Tianjin UniversityTianjin 300072China College of Energy and Electrical Engineering Hohai UniversityNanjing 210098China

This work was supported by the Headquarter Science and Technology Project of state grid Corporation of China(Research on the transient protection for AC/DC hybrid grid with high-proportion renewable energy,SGAH0000TKJ... 详细信息

关键词： Strategy transient funding

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A Flame Detection Algorithm Based on Improved YOLOv3 and Thermograph Generation

A Flame Detection Algorithm Based on Improved YOLOv3 and The...

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Computing and Big Data (ICCBD), International Conference on

作者： Yong Zhang Jiaqing Zhang Jianhua Zhang Weijie Xing Xcmg Fire-fighting Safety Equipment Co. Ltd. Xuzhou China Anhui Province Key Laboratory of Electric Fire and Safety Protection State Grid Anhui Electric Power Research Institute Hefei China School of Information and Control Engineering China University of Mining and Technology Xuzhou China

Aiming at the low accuracy of flame detection in complex environment, a new flame detection method based on improved YOLOv3 and gray thermograph is proposed. For the insufficient thermograph of actual flame data sets, a temperature filling algorithm based on radial basis function is proposed. Based on the open data sets, the actual flame image and thermograph are added to build the initial flame data sets, which improves the model training efficiency and generalization performance. The obtained flame gray scale thermograph and R, G, B image are combined to form a four-channel data and input into the improved YOLOv3 network convolution network layer to obtain the multi-channel characteristics of the data. The experimental results on public and self-built data sets show that the algorithm combines gray thermal image to expand image data and improves the detection accuracy of flame recognition.

关键词： Training Thermal expansion Temperature distribution Image recognition Convolution Fires Feature extraction

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Virtual Inertia Enhancement of DC Microgrid Based on Adaptive Motor Load control

Virtual Inertia Enhancement of DC Microgrid Based on Adaptiv...

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IEEE International Conference on Power and Power and Renewable Energy (ICPRE)

作者： Sizhe Hu Yong Li Cheng Fan Zheng Feng Yangyang He Nengling Tai Qi Liu Key Laboratory of Control of Power Transmission and Conversion Ministry of Education Shanghai Jiao Tong University Shanghai China Xinjiang Silk Road Kunyuan Energy Co. Ltd College of Smart Energy Shanghai Jiao Tong University Shanghai China State Grid Shanghai Electric Power Company Shanghai China

To enhance the dynamic stability and security of voltage and improve the inertial response of the DC microgrid after disturbances, this paper proposes a model predictive control (MPC) based method for regulating the speed of motor load, effectively utilizing controllable load resources without the need for additional energy storage devices. Firstly, a linear discrete model of the DC microgrid with motor load is established to predict the future trends of various system state variables. Secondly, a controller is designed with the objective of restraining the rate of DC voltage variation, and constraints are imposed on the rate of change of motor speed and their maximum response range. At each sampling time, the optimal speed adjustment is computed to achieve active response of the motor load. Finally, the feasibility and effectiveness of the proposed method are validated through MATLAB/Simulink simulation under typical operating conditions.

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