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

共 564 条记录，以下是61-70 订阅

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A High Precision location method for Substation personnel based on the Fusion of 3D Real-scene Map and foot Detection 5

A High Precision location method for Substation personnel ba...

引用

5th International Conference on Artificial Intelligence and Electromechanical Automation, AIEA 2024

作者： Zhang, Yubo Lu, Yufeng Zhang, Wei Liu, Xu Electric Power Research Institute of Guangxi Power Grid Co. Guangxi Key Laboratory of Intelligent Control and Operation and Maintenance of Power Equipment Nanning China Electric Power Research Institute of Guangxi Power Grid Co. Nanning China Southern Power Grid Research Institute Co. Ltd Guangdong Guangzhou510000 China

ISBN: (纸本)9798350366174

The existing personnel positioning methods require wearing transmitting devices on personnel and installing receiving devices inside substations, which cannot meet the accuracy requirements of personnel positioning in complex scenarios of substations. This article applies ankle joint detection to personnel positioning. Firstly, YOLOV4 tiny is used for personnel detection, followed by OpenPose for ankle joint point detection. Then, based on camera extrinsic parameters, the two-dimensional coordinates of the ankle joint point are mapped to a three-dimensional real-world map. Finally, the personnel positioning information is obtained. Due to the closer distance between the ankle joint and the ground, the positioning is more accurate, and the average confidence level of target recognition is 0.95, The recognition accuracy is 100%, the average positioning error is 0.05 m, and it can reach 0.02 m in key areas, fully meeting the actual needs of risk control for substation operators. The application of three-dimensional realistic maps combined with ankle joint detection in substation personnel positioning can not only achieve efficient, accurate, and stable personnel positioning, but also improve the intelligence and level of personnel positioning strategies. © 2024 IEEE.

关键词： Risk management

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Mid-Iong Term Photovoltaic power Forecasting Method Considering Periodicity Characterization

Mid-Iong Term Photovoltaic Power Forecasting Method Consider...

引用

2024 IEEE IAS Industrial and Commercial power System Asia, I and CPS Asia 2024

作者： Zhuo, Minyi Yang, Ming Li, Peng Sun, Yi Liu, Rui Zheng, Zhijie Shi, Bingke Shandong University Key Laboratory of Power System Intelligent Dispatch and Control Jinan China Economic & Technology Research Institute State Grid Shandong Electric Power Company Power Grid Planning Research Department Jinan China

ISBN: (纸本)9798350352290

Accurate forecasting of mid-long term photovoltaic power plays a key role in site planning, operation scheduling and mid-long term plan development for new power system. Meanwhile, the uncertainty in solar power generation is a key factor influencing the precision of its forecasting. This paper proposes a mid-long term PV power forecasting method considering periodic characterization, which first obtains the key meteorological factors through the maximal information coefficient, and extracts the timing features through ARIMA model for mid-long term PV power periodic component prediction. Then the results obtained from above are inputted to the LSTM model, which is trained using raw data to obtain the final PV power prediction results with high accuracy. Validation is carried out through the model's RMSE, MAE and MAPE metrics and the comparison of the model's forecasting results with traditional GRU model. © 2024 IEEE.

关键词： Solar power generation

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Research on control Strategy of Transient Disturbance Based on the Three-level Hybrid Energy Storage Converter

Research on Control Strategy of Transient Disturbance Based ...

引用

2022 International Conference on New Energy, Energy Storage and power Engineering, NESP 2022

作者： Chen, Jinyu Dai, Liyu Li, Zhicheng Deng, Chaoping State Grid Fujian Electric Power Research Institute Fuzhou China Fujian Key Laboratory of Protection and Operation Control for Smart Grid Fuzhou China

This paper proposes a control strategy of transient disturbance based on the three-level hybrid energy storage converter. The hybrid energy storage control strategy switches to the supercapacitor when the voltage sag occurs. Its characteristics of high power density can provide rapid and smooth voltage support for the distribution network so that the distribution network system will not be greatly affected by the impact. In the case of long-term voltage sag or power failure, it is important to switch to the energy storage battery and use its characteristics of high energy density to provide an emergency power supply to support the continuous operation of essential equipment. The control strategy proposed in this paper can realize the coordinated working between supercapacitor and energy storage battery and the fast and stable switching between two different working states of the energy storage system, which effectively solves voltage sag in the main power grid. Finally, a prototype is built, and the simulation and experimental results both verify the correctness and feasibility of the proposed control strategy. © 2022 Institute of Physics Publishing. All rights reserved.

关键词： Electric power supplies to apparatus

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A capacitor-type DC circuit breaker for offshore all-DC grids 4

A capacitor-type DC circuit breaker for offshore all-DC grid...

引用

4th International Conference on Energy, power and Electrical Engineering, EPEE 2024

作者： Xu, Qianqian Liu, Qihui Cai, Xipeng Zhu, Yihua Luo, Chao North China Electric Power University State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources Beijing China National Energy Power Grid Technology R&d Centre Laboratory of Hvdc Electric Power Research Institute China Southern Power Grid Guangzhou China National Energy Power Grid Technology R&d Centre Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System Laboratory of Hvdc Electric Power Research Institute China Southern Power Grid Guangzhou China

ISBN: (纸本)9798331518066

Full DC of offshore wind farms is the future development trend of large-scale offshore wind farms, however, the probability of DC line faults is high, and the use of DC circuit breakers can realise the fault ride-through of offshore full DC wind farms, improve the safe operation of the system during faults, and is one of the mainstream solutions to realise DC fault isolation. In this paper, a capacitive DC circuit breaker suitable for offshore full DC grid is proposed, which can effectively suppress the fault current by introducing a current limiting device. The topology and working principle of this circuit breaker are analysed, and the circuit breaker fault handling process is theoretically analysed. Finally, for the single-end equivalent system using capacitor-type DC circuit breaker, a simulation model is established in Matlab/Simulink software for verification, and the simulation results show that the proposed circuit breaker has a better current limiting effect and has the ability to isolate faults quickly. © 2024 IEEE.

关键词： Offshore wind farms

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Research on Active Support control Strategy and its Performance of Renewable Energy power Station with Multiple Energy Sources 7

Research on Active Support Control Strategy and its Performa...

引用

7th IEEE Conference on Energy Internet and Energy System Integration, EI2 2023

作者： Zeng, Guanming Tu, Liang Zhu, Yihua Hu, Yun Luo, Chao Li, Shengnan State Key Laboratory of Hvdc Electric Power Research Institute China Southern Power Grid National Energy Power Grid Technology R&d Centre Guangzhou China Guangdong Provincial Key Laboratory of Intelligent Operation and Control For New Energy Power System Csg Key Laboratory For Power System Simulation Electric Power Research Institute China Southern Power Grid 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 China Southern Power Grid Guangzhou China National Energy Power Grid Technology R&d Centre Guangdong Provincial Key Laboratory of Intelligent Operation and Control For New Energy Power System Guangzhou China Yunnan Power Grid Co. Ltd. Electric Power Research Institute Yunnan Kunming China

ISBN: (纸本)9798350345094

The increasing integration of renewable energy reduces the inertia and frequency support capacity of the power system. The issue of frequency stability has become one of the core issues in the security and stability of power system and the efficient consumption of renewable energy nowadays. To improve the performance of renewable energy power station (REPS), based on the analysis of typical active support control logic and relative performance requirements of REPS with single energy source (SES), an active support control strategy and coordinated control logic of active power of REPS with multiple energy sources (MES) are proposed in this paper. The performance of proposed strategy is theoretically analyzed from the aspect of dominant energy source and the effect of the capacity of energy storage. The effectiveness of the proposed strategy and the accuracy of the theoretical analysis of performance are verified by realtime simulation. © 2023 IEEE.

关键词： Renewable energy

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Analysis on Participation Strategy of Independent Energy Storage Station in Electricity Spot Market 8

Analysis on Participation Strategy of Independent Energy Sto...

引用

8th Asia Conference on power and Electrical Engineering, ACPEE 2023

作者： You, Daning Zhang, Guoqiang Song, Shihang Liu, Hanghang Cai, Yanbin Wang, Yuanyuan Zhang, Li State Grid Shandong Electric Power Company Power Dispatching Control Center Jinan China Intelligent Dispatch and Control Shandong University Key Laboratory of Power System Jinan China State Grid Shandong Electric Power Company Dongying Power Supply Company Dongying China Key Laboratory of Power System Intelligent Dispatch and Control Shandong University Jinan China

ISBN: (纸本)9798350345520

To implement the carbon peaking and carbon neutrality goals, improving market mechanism to maximize the utilization of energy storage is attracting more and more attention. This paper addresses the trading strategy of independent energy storage station participating in both energy market and frequency regulation market. A restrictive coefficient of available capacity of energy storage participating in frequency regulation market is introduced, which characterizes the constraints of the energy storage between the two markets. Consequently, the market optimization model with the restrictive coefficient is constructed. Then, different strategies are set based on the capacity allocation of energy storage in the two markets, and the energy storage station's role and revenue are analyzed. Simulations under different participation strategies are done, the results show that with the increase of renewable energy connected to the grid, taking the energy storage more as an excellent frequency regulation resource is beneficial to renewable energy consumption and system operation. © 2023 IEEE.

关键词： Carbon

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A Transient Voltage Stability Preventive control Strategy for DC Receiving-end power System 8

A Transient Voltage Stability Preventive Control Strategy fo...

引用

8th International Conference on power and Renewable Energy, ICPRE 2023

作者： Tu, Lian Zhang, Shuiping Guo, Hengdao Bao, Bo Zhu, Yihua Zuo, Jian Power Dispatch and Control Center of Guangdong Power Grid Co. Ltd China Southern Power Grid 510000 China State Key Laboratory of HVDC Electric Power Research Institute China Southern Power Grid 510663 China National Energy Power Grid Technology R&D Centre 510663 China Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System 510663 China

ISBN: (纸本)9798350328813

With the increase of DC feed power and the decrease of the number of synchronous machines, receiving-end power system takes a serious threat to the transient voltage stability. Therefore, a transient voltage stability preventive control strategy for DC receiving-end power system is proposed in this paper. The whole method is decomposed into three sub-problems: transient voltage stability assessment, sensitivity computation and optimal control. A transient voltage stability index suitable for the sensitivity method is used to construct the transient voltage stability constraints. The accuracy and efficiency of the solution algorithm are improved by limiting the effective control interval of sensitivity and selection of the initial control set. The method has been applied in a provincial power grid in southern China. The results verifies the effectiveness of the proposed method. © 2023 IEEE.

关键词： DC receiving-end power system preventive control sensitivity transient voltage stability

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An Assessment Method for the Contribution of Electrochemical Energy Storage to the FM Auxiliary Service Market

An Assessment Method for the Contribution of Electrochemical...

引用

2022 Asian Conference on Frontiers of power and Energy, ACFPE 2022

作者： Xiong, Jiali Chen, Dawei Li, Zhicheng Zhang, Weijun Cai, Qiang Dai, Liyu Chao, Wujie Electric Power Research Institute State Grid Fujian Electric Power Co. Ltd Fujian Key Laboratory of Smart Grid Protection and Operation Control Fujian China

ISBN: (数字)9781665470841

ISBN: (纸本)9781665470841

This paper proposes an evaluation method for energy storage (ESS) to participate in the FM auxiliary service market. The Area control Error is used as an influencing variable reflecting the FM effect of ESS, the correlation between 'FM power of ESS' and 'Area control Error' is established, and the FM effect value of ESS on Area control Error is obtained, eventually constructing an index to measure the FM contribution of ESS. Analyze the distribution of the FM contribution index of ESS based on confidence level, determining the contribution and economic benefits of energy storage in the FM market. Measure and calculate based on the actual operation data of a provincial power grid, this method can measure the FM contribution of ESS, providing a reference for the investment in ESS and development of mechanisms for participating in FM auxiliary service. © 2022 IEEE.

关键词： Investments

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Multi-Objective Coordination and Stability control of High Proportion Wind power System Based on K-Domain Tuning Damping 19th

Multi-Objective Coordination and Stability Control of High P...

引用

19th Annual Conference of China Electrotechnical Society, ACCES 2024

作者： Zhang, Qingtao Gao, Diju Zhang, Dan Cai, Haiqing Gu, Haohan Chen, Wei Wu, Wencong Chen, Zhihao Institute of Logistics Engineering Shanghai Maritime University Shanghai China Institute of Logistic Science and Engineering Shanghai Maritime University Shanghai China 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 Guangzhou China National Energy Power Grid Technology R&D Centre Guangzhou China CSG Key Laboratory for Power System Simulation Electric Power Research Institute China Southern Power Grid Guangzhou China

ISBN: (纸本)9789819608966

With the further development of "double high" characteristics of power system, the traditional stability problem dominated by synchronous generator has gradually evolved into a new stability problem dominated by power electronic equipment control. In addition, different types of failure problems can occur in wind power systems. In order to achieve multi-objective coordinated and stable operation of high proportion wind power system, a damping control method with parameters tuning is proposed, which includes the design of filtering link and proportional amplification link. Among them, the key parameters of the proportional link are adjusted. Finally, the feasibility of the proposed control method is verified by simulation tests. © Beijing Paike Culture Commu. Co., Ltd. 2025.

关键词： Electric power system stability

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A Rapid Evaluation Method for Transformer Insulation Status 3

A Rapid Evaluation Method for Transformer Insulation Status

引用

2023 3rd International Conference on Energy, power and Advanced Thermodynamic Systems, EPATS 2023

作者： Liang, Qinqin Han, Fangyuan Yu, Min Tang, Bin Luo, Zongchang Guangxi Power Grid Electric Power Research Institute Nanning530023 China Guangxi Key Laboratory of Intelligent Control Operation of Electric Power Equipment Guangxi Power Grid Co. LTD. Electric Power Research Institute Nanning China

A method for rapid analysis of transformer insulation status indicated by moisture content in insulation paper was developed by microwave-assisted solvent extraction coupled with Fourier transform infrared spectroscopy (FTIR). The results show that acetonitrile is the best extraction solvent, and the second derivative based on the difference spectrum is obviously better than the difference spectrum. For the acetonitrile spectrum of extracting water, the sensitivity of hoh bending vibration 1680 cm-1 is higher than that of OH stretching vibration 3615 cm-1. For all test samples, the results of this method are basically consistent with the standard method and show excellent precision. The study shows that it is feasible to rapidly analyze the moisture content of transformer insulation paper by solvent extraction coupled with FTIR. © Published under licence by IOP Publishing Ltd.

关键词： Fourier transform infrared spectroscopy

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