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检索条件"机构=State Key Laboratory of Intelligent Power Grid Protection and Operation Control"

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Path Planning for Distribution Network Robots with Adaptive Simulated Annealing-Enhanced Artificial Potential Field Method 26

Path Planning for Distribution Network Robots with Adaptive ...

引用

26th International Conference on Industrial Technology, ICIT 2025

作者： Zhang, Baichao Chen, Xin Chen, Jinge Li, Jinbin Wang, Xiaokai Jian, Xu School of Automation China University of Geosciences Wuhan430074 China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan430074 China Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education Wuhan430074 China State Grid Hubei Electric Power Co. Ltd. Electric Power Science Research Institute Wuhan430077 China Hubei Fangyuan Dongli Electric Power Science Research Co. Ltd Wuhan430077 China

ISBN: (纸本)9798331521950

In this paper, we propose a hybrid algorithm that combines an improved Artificial Potential Field (APF) method with the Simulated Annealing (SA) algorithm for path planning of an electric power operation robot manipulator in complex distribution grid environments. To address the unreachable target issue inherent in traditional APF, we introduce a distance regulation factor to optimize the repulsive function. This modification allows the manipulator to smoothly approach the target point as it nears, while the repulsion from obstacles gradually decreases. Additionally, to overcome the limitations of the traditional SA algorithm, such as its tendency to get trapped in local minimum solutions and its inefficiency in complex environments, we propose an adaptive temperature rise strategy. This strategy increases the temperature, enhancing the probability of escaping local optimal solutions. When the APF algorithm becomes trapped in a local optimum, the improved SA algorithm is applied to escape the local minimum. Once the local optimum is avoided, the algorithm switches back to APF to continue the path planning process. Simulation results demonstrate that the proposed improved APF-SA algorithm adapts effectively to various complex environments, achieving shorter planning times and higher success rates compared to traditional APF and SA algorithms. It successfully resolves the unreachable target and local minimum problems associated with APF. Finally, the feasibility of the proposed APF-SA fusion algorithm is validated through experiments conducted on an electric power operation robot experimental platform for distribution grid applications. © 2025 IEEE.

关键词： Motion planning

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Capacity optimization and economic evaluation of battery energy storage system for qinghai province based on time series simulation technology 4

Capacity optimization and economic evaluation of battery ene...

引用

4th IEEE Conference on Energy Internet and Energy System Integration, EI2 2020

作者： Dong, Ling Sang, Zhencheng Li, Pai Li, Qing Li, Jian Cao, Chunlian State Grid Qinghai Electric Power Company QingHai China China Electric Power Research Institute State Key Laboratory of Operation and Control of Renewable Energy Storage Systems Beijing China

ISBN: (纸本)9781728196060

With the rapid development of renewable energy power in Qinghai province, the utilization rate of renewable energy has become to a new challenge. Large-scale battery energy storage system (BESS) is an effective way to promote the utilization of renewable energy. In this paper, a method on capacity optimization and economic evaluation of BESS is proposed based on sequential production simulation technology. An optimization model is established to maximize the utilization of renewable energy, considering constraints of system power balance, operation mode of BESS and conventional units. The annual power outputs of renewable energy are incorporated as inputs for optimizing the hourly charging and discharging power of BESS. The discount cash flow method is adopted to evaluate the economic benefits of BESS. In case studies, a set of scenarios for Qinghai province with different power rating and energy capacity of BESS are tested, and the best plans of BESS in Qinghai province is obtained. The testing results verify the effectiveness of the proposed method. © 2020 IEEE.

关键词： Battery storage

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Optimization Scheme for the SSC Discrimination Logic of Xinsong-Dongfang HVDC under Small Islanded operation Mode

Optimization Scheme for the SSC Discrimination Logic of Xins...

引用

IEEE International Conference on power and Energy Systems (ICPES)

作者： Yukun Zhu Chengxiang Li Yihua Zhu Dongxu Chang Shengnan Li Yong Chen State Key Laboratory of HVDC China Southern Power Grid Electric Power Research Institute Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System CSG Key Laboratory for Power System Simulation China Southern Power Grid Electric Power Research Institute Guangzhou China Electric Power Research Institute Yunan Power Grid Co Ltd Kunming China

ISBN: (纸本)9781665413268

The sending end of HVDC in islanded operation mode is a weak AC system, the security and stability control (SSC) system is very important for the operation of the islanded system. In this paper, the SSC strategy of Xinsong-Dongfang HVDC under islanded mode is deeply analyzed, and the defects and risks of the SSC discrimination logic for the small islanded operation mode is exposed during the RTDS simulation tests, as a result, some of the generators cannot be cut off. In addition, Then the research of the action sequence of SSC reveals the improper time coordination between the small islanded mode signal and the cut-off command. Based on the above work, an optimized scheme to discriminate the small islanded operation mode is proposed, and the correctness and effectiveness are verified through the same RTDS tests. This new method has great significance in the SSC design and implementation in HVDC transmission project with similar techniques.

关键词： HVDC transmission Standardization power system stability control systems Stability analysis Generators power grids

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Optimization of Robot End-Effector Load Gravity Compensation for Unmanned Live Work in Electric power Distribution Networks Based on Improved PSO Algorithm

Optimization of Robot End-Effector Load Gravity Compensation...

引用

Chinese Automation Congress (CAC)

作者： Jinge Chen Xin Chen Chenyu Hu Guangxian Huang Shu Sun Xu Jian School of Automation China University of Geosciences Wuhan China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan China Engineering-Research Center of Intelligent Technology for Geo-Exploration Ministry of Education Wuhan China Distribution Department State Grid Hubei Electric Power Co. Ltd. Xianning Power Supply Company Xianning China Equipment Technology Center State Grid Hubei Electric Power Co. Ltd. Electric Power Science Research Institute Wuhan China

In the field of electric power distribution network operation, most tasks involve contact operations. A key technology to enable the flexible operation of robots in live distribution network tasks is the installation of six-dimensional force sensors on the robot's end flange. These sensors allow the robot to perceive external environmental contact forces. However, the presence of the end load interferes with the accurate perception of external forces. Aiming at the gravity compensation of robot end load, an optimization algorithm of gravity compensation based on particle swarm optimization is proposed. In this method, the optimal solution model is established with the objective of minimum sum of squared errors, and the particle swarm optimization algorithm is used to estimate the mounting declination angle of the force sensor and improve the precision of gravity compensation. The experiments show that the proposed method can effectively reduce the maximum gravity compensation error and the average gravity compensation error in each direction after optimization, in which the maximum gravity compensation error of the resultant force is reduced by 9.11% and the average gravity compensation error of the resultant force is reduced by 12.34%.

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Multi-task Transient Contingency Screening with Temporal Graph Convolutional Network in power Systems

Multi-task Transient Contingency Screening with Temporal Gra...

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作者： Yinsheng Su Jiyu Huang Haicheng Yao Lin Guan Mengxuan Guo Zhi Zhong Department of Power System Operation China Southern Grid Co.Ltd. School of Electric Power South China University of Technology Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System

Rapid transient stability assessment(TSA) is an essential requirement for power system *** real-world applications,transient contingency screening(TCS) applies TSA approaches to address the pre-defined contingency sets under online operation *** by time domain simulation(TDS) is time-consuming,hence we propose a high-speed temporal graph convolutional network(TGCN) that achieves TSA decisions such that a large-scale contingency set can be scanned quickly with enough *** on multi-graph inputs to reflect the transient process,the TGCN utilizes the graph convolutional network(GCN) to extract topology representations and temporal convolution(TC) layers to encode temporal *** above graph embedding,two downstream networks are designed for stability classification and critical generator prediction,*** results on IEEE 39 Bus system demonstrate its superiority over existing models under different operation topologies,fault locations and clearing modes.

关键词： Temporal graph convolutional network (TGCN) Temporal convolution (TC) Transient contingency screening(TCS) Critical generator prediction

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Optimal configuration of multi-energy capacity based on complementary characteristics of wind, solar, hydro, thermal, and battery energy 4

Optimal configuration of multi-energy capacity based on comp...

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4th IEEE Conference on Energy Internet and Energy System Integration, EI2 2020

作者： Ma, Yanhong Zhou, Qiang Wang, Dingmei Chen, Yue Yang, Shiyou Gansu Key Laboratory of Renewable Energy Integration Operation and Control State Grid Gansu Electric Power Corporation Lanzhou China State Grid Gansu Electric Power Research Institute Lanzhou China Zhejiang University Hangzhou China

ISBN: (纸本)9781728196060

To alleviate the disruptive effects of the random-ness in wind and solar energy on the normal operation of a power grid, a multi-objective optimal configuration model for the wind-solar-hydro-thermal-batteiy capacity is first developed based on the complementary characteristics and operation strategies of wind, solar, hydro, thermal and battery. A scaling technique is then introduced to address the large difference in the amplitudes of different objective functions. Finally, a genetic algorithm is employed to solve the optimal configuration problem of wind power, photovoltaic, thernial power and energy storage capacity in a wind-solar-hydro-themial-batteiy power generation system. The numerical results on a case study have validated the feasibility and applicability of the proposed multi-energy complementaiy system optimization configuration model and algorithm. © 2020 IEEE.

关键词： Genetic algorithms

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Research and Application of Simplified Service Bus in New Generation Dispatching Technical Support System and Heterogeneous System

Research and Application of Simplified Service Bus in New Ge...

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

作者： Yi Qiang Wan Shupeng Wang Zhemin He Weihua Zhang Ping Zhang Feng System R&D Center NARI Group Corporation(State Grid Electric Power Research Institute) NARI Technology Co. Ltd Nanjing China State Grid Shanxi Electric Power Co. Ltd Taiyuan China System R&D Center State Key Laboratory of Smart Grid Protection and Control Nanjing China

With the rapid development of UHV AC / DC hybrid power grid, in order to cope with the large-scale access of new energy, the power market reform has been continuously promoted. Therefore, it is proposed to build a new generation of dispatching technical support system to meet the needs of future power system development and safe, stable and high-quality operation. This paper proposes a simplified service bus that supports a new generation of service-oriented architecture, and meets the deployment characteristics of cloud terminals that are cross platform, lightweight, easy to deploy, open and efficient. The simplified service bus can well meet the location independent characteristics and be easily deployed in and out of the system. The flexible protocol processing mode cooperating with the gateway can meet the needs of accessing the services of the system and external systems. At the same time, it supports multiple man-machine network and automatic switching of service network shutdown under N-1 mode, which greatly improves the availability and stability of the system, Which Provide a strong guarantee for the safe, stable and efficient operation of the new generation system.

关键词： Cloud computing Protocols Switches System integration power system stability Logic gates Dispatching

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Research on Automatic Construction and Correlation Method of Virtual and Real Loops in UHV DC control and protection System

Research on Automatic Construction and Correlation Method of...

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Sustainable power and Energy Conference (iSPEC)

作者： Yuanhong Lu Qi Guo Zhijiang Liu Shuyong Li Haiping Guo Guanming Zeng State Key Laboratory of HVDC Electric Power Research Institute China Southern Power Grid National Energy Power Grid Technology R&D Centre Guangzhou China State Key Laboratory of HVDC Electric Power Research Institute China Southern Power Grid Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System Guangzhou China State Key Laboratory of HVDC Electric Power Research Institute China Southern Power Grid CSG Key Laboratory for Power System Simulation Electric Power Research Institute Guangzhou China

ISBN: (纸本)9781665414401

At present, in the research on virtual and real loops of control and protection systems, scholars at home and abroad are mainly focusing on the field of AC digital substations, and there is less research on the virtual and real loops of UHV DC control and protection systems. Aiming at this problem, this paper proposes an automatic construction and correlation method for virtual and real loops of UHV DC control and protection system. This method automatically constructs the real circuit by analyzing the design drawings and the optical cable inventory, analyzing the DC visualization program to automatically construct the virtual circuit, and then automatically correlates the virtual and real circuits based on the graph depth traversal algorithm. The practical application in UHV DC engineering shows that this method can help relevant personnel complete the automatic construction and correlation of virtual and real loops, and improve the convenience of operation and maintenance of the UHV DC control and protection system.

关键词： Visualization Correlation Substations Optical design Conferences Focusing Maintenance engineering

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Reliability analysis of autonomous controllable protection device in power system 8

Reliability analysis of autonomous controllable protection d...

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8th International Conference on power Electronics Systems and Applications, PESA 2020

作者： Li, Chen. Yutao, Qiu. Jianing, Chen. Xuliang, Huang. State Key Laboratory of Smart Grid Protection and Control China Co. Ltd Nanjing China State Grid Zhe Jiang Electric Power Co .LTD. China State Grid Zhejiang Electric Power Company Hangzhou Power Supply Company China

ISBN: (纸本)9781728193823

With the deepening of the concept of autonomous control in the power system, more and more attention is paid to the stability of the protection device itself. Compared with the primary equipment condition monitoring, the fault of the secondary protection device will be more concealed. This paper analyzes the factors affecting the reliability of protection devices, forms the life cycle prediction method of substation protection devices, and ensures the safe and stable operation of intelligent substation. Analyzed the reliability of the relay protection device related concepts, from the failure mechanism, through the establishment of joint aging failure based on the Arrhenius model and Weibull distribution model, and based on grid relay protection device, the data is using LM method for joint failure rate estimate the parameters of the model, get old equipment failure rate model of concrete, to determine the reliability of the protection device and the effective service life. An example shows that the model proposed in this paper can effectively predict the failure trend and life boundary of the device, and provide a theoretical basis for the daily maintenance of smart substation. © 2020 IEEE.

关键词： Weibull distribution

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A Novel Non-unit Frequency-Based Line protection Scheme for Flexible DC grids

A Novel Non-unit Frequency-Based Line Protection Scheme for ...

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2020 IEEE/IAS Industrial and Commercial power System Asia, I and CPS Asia 2020

作者： Zhang, Yunqi Cong, Wei Zhang, Yuxi Shandong University Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education Jinan China State Grid Liangshan Power Supply Company Liangshan China

ISBN: (纸本)9781728143033

To address the problems still existing in line protection for flexible DC grids currently, this paper proposes a non-unit frequency-based line protection scheme for flexible DC grids. Firstly, the values of the initial voltage traveling waves (IVTWs) generated by the fault point under internal and external faults are respectively calculated based on the equivalent model of the four-terminal flexible DC grid. Due to the boundary effect of the current limiting inductors on both ends of DC lines, the attenuation rates of the IVTWs with the increase of frequency under internal and external faults have different characteristics. The detail coefficients of the IVTW in different frequency bands are extracted by stationary wavelet transform at different scales, and the amplitudes of the IVTW in different frequency bands are expressed by wavelet transform modulus maximums (WTMMs). A criterion to identify internal and external faults is constructed based on the square of the frequency-domain equivalent attenuation rate of the IVTW. Lastly, simulation results under diverse fault conditions validate the availability of the proposed protection method. © 2020 IEEE.

关键词： Wavelet transforms

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