Showing 661 - 680 results of 1,047 for search '"power systems"', query time: 0.08s Refine Results
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    Research on High Voltage Direct Current Power Supply System for Telecommunications by Li Lu, Shineng Lai, Wenbo Sun, Fuping Hou

    Published 2013-08-01
    “…The analysis was made for the nominal voltage selection and system design method which was based on energy efficiency prompt and power reliability increasing,these different goals to replace AC power system by DC power system,and these two direct current power supply system was introduced.It was compared that the reliability,the efficiency,the security and the input/output ratio which could prove the scientifically and large-scale application feasibility of 240V direct current power supply system.…”
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  9. 669

    Matching and Optimization for the Parameter of Electric City Vehicle Powertrain by Li Wenwen, Sun Houhuan, Xu Xiaowen

    Published 2017-01-01
    “…Under the double pressures of energy crisis and environmental problems,the governments and the automobile enterprises have paid much attention to the pure electric vehicle which has advantages of zero emission,low noise and wide range of energy sources.Electric car is not very different from conventional cars,whether in the main structure or in the appearance.The main change is made in terms of drivetrain.Taking the pure electric city car as our research target,the power transmission system parameter is analyzed and designed,according to the vehicle parameters,power and economy requirements,the vehicle power system parameter is matched.The matched parameters of power system preliminarily is optimized from improving the transmission efficiency,taking the shortest time of acceleration and working conditions driving range maximum as optimization goal.The fitness function of transmission speed ratio is constituted of objective function and constraints condition by using a penalty function.The optimization is carried out by genetic algorithm,the optimal parameters of power system are obtained.…”
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  10. 670

    Key technology of power big data for global real-time analysis by Guoliang ZHOU, Linjie LV, Guilan WANG

    Published 2016-04-01
    “…For power big data collected during smart grid construction process,based on the demand of power system global and real-time data analysis,ideas of solving power system security and reliability,real-time status monitoring,energy global dynamic balance scheduling and other key issues were explored. …”
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    Techno-economic dataset for energy market and capacity payment co-optimization in the Dominican Republicʼs power marketMendeley Data by René Báez-Santana, Miguel Aybar-Mejía, Máximo A. Domínguez-Garabitos, Víctor S. Ocaña-Guevara

    Published 2025-02-01
    “…These modelling tools need data to simulate different scenarios in the power system to clarify the design of energy policies. …”
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    A Novel Method for Screening the PMU Phase Angle Difference Data Based on Hyperplane Clustering by Ancheng Xue, Shuang Leng, Yecheng Li, Feiyang Xu, Kenneth E. Martin, Jingsong Xu

    Published 2019-01-01
    “…The high reporting speed provides dynamic characteristics of the power system frequency, voltage, and current measurement. …”
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    Security technologies in 4G network for power grid by Jian LI, Yun LIU, Chunyan AN, Jianwei REN

    Published 2015-12-01
    “…4G technologies with high data rate is flexible and has matured sufficiently,it has a promising application prospect in automatic distribution systems.However,communication networks for power grid should be more security,but the security protection of 4G network for power gird is not mature.Based on the application mode of 4G network in power system,the security risk was analyzed,then the specific safety protection methods were presented,which would guide the further application of 4G network in power system.…”
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    Thinking and Prospect of Power Chip Specificity by Fuqi Ma, Min Li, Xuzhu DONG, Bo WANG, Yinyu ZHOU, Jincan Li, Lei FENG, Mohamed A. Mohamed

    Published 2021-01-01
    “…The contradiction between the demand of massive intelligent scene caused by the interconnection of things in power system and the bottleneck of the chip itself is becoming more and more serious. …”
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