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    Complex energy system in bidirectional energy network and control method thereof
    3.
    发明授权
    Complex energy system in bidirectional energy network and control method thereof 有权

    公开(公告)号：US11257173B2

    公开(公告)日：2022-02-22

    申请号：US15393490

    申请日：2016-12-29

    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

    Inventor： Soo Bin Han ,  Seaseung Oh ,  Su Yong Chae ,  Jaejoon Choi

    IPC: G06Q50/06 ,  G06Q10/06 ,  G06Q30/02 ,  G05F1/66

    Abstract: Provided is a control method of a complex energy system that supplies heat and power to energy consumers through a heat network and a power network. The control method includes monitoring energy consumption information of the energy consumers and confirming an energy price applied to each of the energy consumers, calculating a total energy consumption cost of the energy consumers according to the energy price and the energy consumption information, and controlling a cogenerator and a heat generator so that a sum of a power supply amount of the cogenerator and a power consumption amount from an external power grid is equal to a total power consumption amount of the energy consumers, a sum of a heat supply amount of the cogenerator and a heat supply amount of the heat generator is equal to a total heat consumption amount of the energy consumers, and a target function value obtained by subtracting the total energy consumption cost from a sum of a power consumption cost from the external power grid and operating costs of the cogenerator and the heat generator is maximized.

    Arc detection apparatus, arc detecting method, and power system
    6.
    发明授权
    Arc detection apparatus, arc detecting method, and power system 有权

    公开(公告)号：US09837809B2

    公开(公告)日：2017-12-05

    申请号：US15165233

    申请日：2016-05-26

    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

    Inventor： Su Yong Chae ,  Seung Weon Yu ,  Jin Ju Park ,  Sea Shung Oh ,  Gyu Duk Kim ,  Suk In Park

    IPC: H02H1/00 ,  G01R31/12

    CPC classification number: H02H1/0015 ,  G01R31/1272

    Abstract: The present provides an arc detection apparatus that includes: a current sensor configured to sense the first current that flows through the first line of a system in which the influence of noise according to the operation is detected in the first frequency band; a frequency data creator configured to digitally process sensed values of the first current in the first time period and the second time period, respectively, in order to thereby create the first frequency data and the second frequency data for the first frequency band; and an arc determination unit configured to determine the possibility of the generation of an arc of the system according to comparison data between the first frequency data and the second frequency data.

    Converter system using efficient map and method of controlling same
    7.
    发明授权
    Converter system using efficient map and method of controlling same 有权

    公开(公告)号：US09774254B2

    公开(公告)日：2017-09-26

    申请号：US14525846

    申请日：2014-10-28

    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

    Inventor： Su Yong Chae ,  Yu Jin Song ,  Sea Seung Oh ,  Yoon Dong Sung ,  Jin Ju Park

    IPC: H02M3/157 ,  H02M3/158 ,  H02M1/00

    CPC classification number: H02M3/157 ,  H02M3/1584 ,  H02M2001/0032 ,  Y02B70/16 ,  Y10T307/549

    Abstract: Provided is a converter system including: a plurality of converter modules connected to one power source in parallel; and a controller for storing mapping information of first parameters corresponding to processing power of the converter modules and second parameters corresponding to the number of converter modules that optimally process the processing power among the converter modules, configuring a value of the first parameter according to a measurement value of power input into the converter modules or power output from the converter modules, calculating a value of the second parameter by substituting the value of the first parameter into the mapping information, selecting the number of converter modules corresponding to the value of the second parameters as active converter modules from the converter modules and processing the processing power by using the active converter modules, and controlling output power of the active converter module to gradually increase or decrease in a transient state where the value of the second parameter is changed.

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