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公开(公告)号：US10651680B2
公开(公告)日：2020-05-12
申请号：US16021413
申请日：2018-06-28
Inventor： Sewan Heo , Wan Ki Park , Jinsoo Han
Abstract: An uninterruptible power supply apparatus and method. The uninterruptible power supply apparatus includes a first generator, an energy storage, a first power converter connected to the energy storage, a second power converter connected to the energy storage, a first switch connected to the first power converter and a first load, a second switch connected to the second power converter, the first generator and a second load, and a third switch connected to a power grid, the first generator, the second power converter, the first switch and the second switch. In a normal state in which the first switch and the third switch are connected, the power grid supplies power to the first load or the second load. In an independent operating state in which the third switch is turned off, the first generator or the energy storage uninterruptibly supplies power to the first load or the second load.
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公开(公告)号：US09602032B2
公开(公告)日：2017-03-21
申请号：US14862139
申请日：2015-09-22
Inventor： Minki Kim , Jung Hee Suk , Yil Suk Yang , Jimin Oh , Sewan Heo
CPC classification number: H02P6/182
Abstract: Provided is a BrushLess Direct Current (BLDC) motor system including a motor driving circuit configured to control a pulse-width-modulation (PWM) inverter in a first operation mode or a second operation mode according to a control signal, and output a switching signal according to each operation mode, the PWM inverter configured to receive the switching signal to output first three-phase voltages having a first frequency in the first operation mode, and output second three-phase voltages having a second frequency in the second operation mode, a sensorless BLDC motor configured not to operate in the first operation mode by operating based on three-phase voltages having a frequency in a different band from the first frequency, and operate in the second mode by operating based on three-phase voltages having a frequency in an identical band to the second frequency, and a parameter detecting circuit configured to calculate parameter information on the sensorless BLDC motor in the first operation mode by using sensing voltages sensed in the PWM inverter.
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公开(公告)号：US09000737B2
公开(公告)日：2015-04-07
申请号：US13903014
申请日：2013-05-28
Inventor： Sewan Heo , Yil Suk Yang , Jong-Kee Kwon
CPC classification number: H02J3/385 , H02M3/1588 , Y02B70/1466 , Y02E10/58
Abstract: Provided is a maximum power extraction devices including: a battery; a voltage control unit adjusting a size of a first power outputted from the battery according to a resistor selected from a plurality of resistors, and generating a compare signal according to a size difference between an operating voltage adjusting the size of the first power depending on the selected resistor and a reference voltage; a switching unit connected between the battery and a load and adjusting a size of the operating voltage according to a size difference of the compare signal in response to first and second switching control signals; a switching control unit generating the first and second switching control signals to allow a size between the operating voltage according to the compare signal and the reference voltage to be within an error range; and a maximum power control unit measuring the number of first operations obtained by counting the occurrence number of the first or second switching control signals for a predetermined time, when the compare signal is within the error range.
Abstract translation: 提供了一种最大功率提取装置，包括：电池; 电压控制单元，根据从多个电阻器中选择的电阻器，调整从电池输出的第一功率的大小，并根据调整第一功率的大小的工作电压之间的尺寸差产生比较信号， 选择电阻和参考电压; 连接在电池和负载之间的开关单元，并且响应于第一和第二开关控制信号，根据比较信号的尺寸差来调整工作电压的大小; 切换控制单元，其产生第一和第二切换控制信号，以允许根据比较信号的工作电压和参考电压之间的尺寸在误差范围内; 以及最大功率控制单元，当所述比较信号在所述误差范围内时，测量在预定时间内对所述第一或第二切换控制信号的出现次数进行计数而获得的第一操作的数量。
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Patent Agency Ranking
公开(公告)号：US09325261B2
公开(公告)日：2016-04-26
申请号：US14201163
申请日：2014-03-07
Inventor： Jimin Oh , Minki Kim , Jung Hee Suk , Sewan Heo , Yil Suk Yang
Abstract: Provided is a motor driving circuit which transmits a driving signal to a motor, including a gate driver generating the driving signal corresponding to a pulse width modulation signal, a pulse width modulation signal generator generating the pulse width modulation signal according to Hall sensor signals received from Hall sensors mounted in the motor, a current sensor measuring a link current provided to the gate driver, a low pass filter outputting a filter current that high frequency components are removed from the measured link current, and a minimum power consumption estimating unit generating a lead angle according to a start signal with reference to the filter current, wherein the pulse with modulating signal is changed according to the lead angle.
Abstract translation: 提供了一种电动机驱动电路，其将驱动信号发送到电动机，包括产生与脉宽调制信号相对应的驱动信号的栅极驱动器，脉宽调制信号发生器，根据接收到的霍尔传感器信号产生脉宽调制信号 安装在电动机中的霍尔传感器，测量提供给栅极驱动器的链路电流的电流传感器，输出从所测量的链路电流中除去高频分量的滤波电流的低通滤波器，以及产生引线的最小功耗估计单元 相对于滤波器电流根据起始信号的角度，其中具有调制信号的脉冲根据引导角度而改变。
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5.发明授权公开(公告)号：US12166347B2
公开(公告)日：2024-12-10
申请号：US17473791
申请日：2021-09-13
Inventor： Sewan Heo , Tai-yeon Ku , Wan Ki Park
Abstract: Provided is a capacity design method and apparatus for performing solar power generation of a residential complex that may calculate a capacity of a solar power generator and an energy storage device to achieve energy independence of a residential complex including a plurality of housings and reduce burden affecting a grid.
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公开(公告)号：US11038353B2
公开(公告)日：2021-06-15
申请号：US16833946
申请日：2020-03-30
Inventor： Sewan Heo , Wan Ki Park , Jinsoo Han
Abstract: An output controlling apparatus of an energy storage apparatus for a reliability of an output of a photovoltaic power generation is provided. The output controlling apparatus includes a power generation amount predictor configured to predict a next day's power generation amount of a photovoltaic power generator, a target output generator configured to determine a target output based on a charging state of an energy storage apparatus used for a photovoltaic power generation, a real-time output criterion generator configured to generate an output criterion used for outputs from the photovoltaic power generator and the energy storage apparatus to a system in units of time based on the target output and the charging state of the energy storage apparatus, and a charging/discharging controller configured to control charging and discharging of the energy storage apparatus such that an output to the system follows the output criterion.
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7.发明授权公开(公告)号：US09219437B2
公开(公告)日：2015-12-22
申请号：US14148142
申请日：2014-01-06
Inventor： Minki Kim , Yil Suk Yang , Jimin Oh , Jung Hee Suk , Sewan Heo
IPC: H02P6/16
CPC classification number: H02P6/16
Abstract: Provided is a motor including a motor driving unit outputting a plurality of switching signals and any one of estimated three-phase voltages, in response to a control signal and a compensated position signal; a pulse width modulation (PWM) inverter outputting three-phase voltages and any one of estimated three-phase currents corresponding to the one estimated phase voltage, in response to the plurality switching signals; a motor unit operating based on the three-phase voltages and outputting a position signal according to the operation; and a position signal compensation unit receiving the position signal, the estimated phase voltage and the estimated phase current, detecting a phase difference between the estimated phase voltage and the estimated phase current and compensating for the position signal in response to the detected phase difference.
Abstract translation: 提供一种电动机，其包括电动机驱动单元，其响应于控制信号和补偿位置信号而输出多个开关信号和估计的三相电压中的任一个; 响应于所述多个开关信号，输出三相电压和对应于所述一个估计相电压的估计三相电流中的任一个的脉宽调制（PWM）变换器; 基于三相电压工作的电动机单元，并根据操作输出位置信号; 以及位置信号补偿单元，接收位置信号，估计相电压和估计相电流，检测估计相电压和估计相电流之间的相位差，并响应于检测到的相位差补偿位置信号。
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公开(公告)号：US12199322B2
公开(公告)日：2025-01-14
申请号：US18074602
申请日：2022-12-05
Inventor： Sewan Heo , Tai-yeon Ku , Wan Ki Park
IPC: H01M8/04664 , H01M8/0432 , H01M8/04537 , H01M8/04701 , H01M8/04858 , H01M8/04955 , H01M10/44 , H01M10/48 , H01M16/00 , H02J7/00
Abstract: A power supply apparatus according to an example embodiment includes an abnormal state determiner configured to determine a maximum output of a fuel cell by determining whether there is an abnormality in the fuel cell, a fuel cell controller configured to control output power of the fuel cell within the maximum output based on demand power of a load, an energy storage configured to charge with power by receiving the power from the fuel cell and supply the power to the load, a charging state determiner configured to determine a charging state of the energy storage based on a charging amount of the energy storage, and a storage controller configured to control charging and discharging of the energy storage based on a difference between the demand power of the load and the output power of the fuel cell.
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