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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 17. Отображено 17.
08-11-2017 дата публикации

APPARATUS AND METHOD FOR OPERATING MICROGRID WITH CONSIDERATION FOR EFFICIENCY OF PCS

Номер: KR101795301B1
Автор: CHAE, WOO KYU, LEE, HAK JU, PARK, JUNG SUNG, WON, JONG NAM, SIM, JUN BO
Принадлежит: KOREA ELECTRIC POWER CORPORATION

The present invention relates to an apparatus and a method for operating a microgrid and, more particularly, to an apparatus and a method for operating a microgrid with consideration for efficiency of a power conditioning system (PCS). The apparatus for operating a microgrid of the present invention comprises: a scheduling unit scheduling output of an emergency internal combustion power generator, a controllable load, and a battery operated in a microgrid; and an operation control unit controlling operation of the battery, the emergency internal combustion power generator, and the controllable load in accordance with charging and discharging of the battery, the output of the emergency internal combustion power generator, and the output of the controllable load which are scheduled by the scheduling unit. The scheduling unit schedules the charging and discharging of the battery such that a state of charge (SOC) of the battery is maintained within a predetermined range with consideration for ...

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Номер записи: 1
28-03-2018 дата публикации

METHOD FOR CONTROLLING FREQUENCY OF INDEPENDENT MICRO-GRID AND POWER CONVERSION DEVICE FOR ENERGY STORAGE DEVICE FOR CONTROLLING SAME

Номер: KR1020180031455A
Автор: LEE, HAK JU, WON, JONG NAM, SIM, JUN BO, CHAE, WOO KYU, PARK, JUNG SUNG
Принадлежит:

The present invention relates to a method for controlling the frequency of an independent micro-grid which operates an independent micro-grid energy storage device as a main power by controlling the battery power conditioning system (PCS) of a stand-alone micro-grid in a constant voltage constant frequency (CVCF) mode. According to the present invention, it is possible to operate frequency stably while considering the power generation efficiency and fuel cost of the independent micro-grid. COPYRIGHT KIPO 2018 (AA) Starting an operation of an independent micro-grid (BB) Controlling a battery energy storage system (BESS ) power conditioning system (PCS) in a constant voltage constant frequency (CVCF ) mode (S10,S22,S32) Measuring a value of BESS PCS (S20) SOC < lower criteria 1 (S21) Blocking controllable load (S23) SOC < lower criteria 2 (S24) Operating a diesel generator and transmitting an output command (S30) SOC > upper Criteria 1 (S31) Inserting controllable load (S33) SOC > upper Criteria ...

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Номер записи: 2
24-01-2017 дата публикации

독립형 마이크로그리드 시스템

Номер: KR0101699135B1
Автор: 이학주, 채우규, 황성욱, 원종남
Принадлежит: 한국전력공사

... 본 발명의 일 실시예는 독립형 마이크로그리드 시스템에 관한 것으로, 해결하고자 하는 기술적 과제는 기존의 EMS 독립형 마이크로그리드 시스템의 단점을 극복하기 위해 보다 저렴하고 효율적인 운영이 가능한 EMS가 없는 도서용 독립형 마이크로그리드 시스템을 제공하는데 있다. 이를 위해 본 발명은 부하에 전원을 공급하여 방전하거나, 또는 충전이 가능한 배터리 에너지 저장 장치; 부하에 전원을 공급하거나, 또는 배터리 에너지 저장 장치를 충전하는 신재생 에너지원; 및, 부하에 전원을 공급하거나, 또는 배터리 에너지 저장 장치를 충전하는 디젤 엔진 발전 장치를 포함하고, 배터리 에너지 저장 장치가 신재생 에너지원 및 디젤 엔진 발전 장치를 직접 제어하는 독립형 마이크로그리드 시스템을 개시한다.

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Номер записи: 3
28-03-2018 дата публикации

SYSTEM AND METHOD FOR SWITCHING LINE SHORT-CIRCUIT FAULT SECTION IN INVERTER-BASED INDEPENDENT MICROGRID

Номер: KR1020180031456A
Автор: WON, JONG NAM, CHAE, WOO KYU, LEE, HAK JU, PARK, JUNG SUNG, SIM, JUN BO
Принадлежит:

The present invention relates to a system and a method for switching a line short-circuit fault section in an inverter-based independent microgrid. The system comprises: a plurality of intelligent switches provided on a line in an independent microgrid to control opening or closing of the line; a battery inverter having a current limiter to limit output current; and an operating system for receiving short-circuit fault information of the line from the plurality of intelligent switches to determine a fault section and controlling the battery inverter to limit the output current. The system is capable of quickly and precisely switching a line short-circuit fault section occurring in the independent microgrid which does not have a separate shutdown facility such as a recloser. COPYRIGHT KIPO 2018 (AA) Battery (BB) Invertor (CC) Operating system (DD) Output current limiting command (EE) Electricity (FF) Communication (GG) Breaker #1 (HH) Breaker #2 (I1,I2,I3,I4) Switch (JJ) Transmitting/receiving ...

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Номер записи: 4
18-09-2017 дата публикации

SYSTEM AND METHOD FOR MANAGING TEMPERATURE OF BATTERY

Номер: KR1020170104763A
Автор: WON, JONG NAM, CHAE, WOO KYU, LEE, HAK JU, PARK, JUNG SUNG, SONG, IL KEUN
Принадлежит:

Disclosed are a system and a method for managing the temperature of a battery to set one of the normal temperature range and the extreme temperature range as a reference value by using renewable energy information, weather information, load information and battery information of an independent microgrid system and to control operations of a heating and cooling device based on the reference value and the battery temperature. A ratio value between the average consumable power of the heating and cooling device and an average discharge power prediction value of the battery is calculated based on the battery condition decided by using the provided battery information. One of the normal temperature range and the extreme temperature range is set as a reference value based on the calculated ratio value and the predetermined ratio set value, and the operation of the heating and cooling device is controlled based on the set reference value and the battery temperature. COPYRIGHT KIPO 2017 (600) Heating ...

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Номер записи: 5
17-03-2023 дата публикации

독립계통에서의 하이브리드 발전소 운영 방법 및 시스템

Номер: KR20230038012A
Автор: 원종남, 채우규, 김우현
Принадлежит:

... 본 발명의 독립계통에서의 하이브리드 발전소 운영 방법은, 제어 스케쥴을 수립하는 단계; ESS의 배터리를 공유하는 다수의 PCS들에 대하여, 각 PCS의 제어 용도 및 순위를 결정하는 단계; 상기 제어 스케쥴의 제어 대상이 되는 각 단위 시간 구간에서 ESS 충방전량을 계산하는 단계; 상기 ESS 충방전량을 상기 다수의 PCS들에 대하여 배분하는 단계; 상기 배분된 충방전량에 따라 각 PCS를 운전하면서 배터리의 SOC를 확인하여 SOC에 따른 조치를 수행하는 단계; 및 PCS의 충방전량 배분값과 운전 중인 PCS의 충방전량과의 차이에 따른 조치를 수행하는 단계를 포함할 수 있다.

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Номер записи: 6
26-03-2020 дата публикации

METHOD FOR DERIVING SETTING VALUE OF VOLTAGE REGULATOR FOR COORDINATED CONTROL OF PLURALITY OF VOLTAGE REGULATORS ON BASIS OF POWER DATA MEASUREMENT

Номер: WO2020059964A1
Автор: NAMKOONG, Won, SHIN, Chang Hoon, WEON, Jong Nam, JUNG, Won Wook, CHU, Cheol Min
Принадлежит:

The present invention relates to a method for deriving a setting value of a voltage regulator for coordinated control of a plurality of voltage regulators on the basis of power data measurement. For the coordinated control of a plurality of voltage regulators, a control unit derives a range for high voltage operation which is an operation reference for each voltage regulator, through a first process of acquiring high voltage and low voltage for each section and time; a second process of converting the high voltage at all times to a designated same reference and applying the same to the low voltage; a third process of calculating upper and lower limit margins of the low voltage reference and deriving minimum ranges for the upper and lower limit margins; and a fourth process of deriving a range for high voltage operation for each section on the basis of the first to third processes.

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Номер записи: 7
07-02-2017 дата публикации

INDEPENDENT-TYPE MICROGRID OPERATION APPARATUS AND METHOD THEREOF

Номер: KR101704252B1
Автор: PARK, JUNG SUNG, SONG, IL KEUN, LEE, HAK JU, CHAE, WOO KYU, JUNG, WON WOOK, WON, JONG NAM
Принадлежит: KOREA ELECTRIC POWER CORPORATION

The present invention relates to an operation apparatus and an operation method for a small-sized independent-type microgrid system which is separated from a power system and is operated. The independent-type microgrid operation apparatus comprises: a data acquisition unit which collects measurement information and weather information with respect to power generators, an energy storage unit, and a load which are included in an independent-type microgrid system; a prediction unit which calculates a predicted power generation amount and a predicted load amount for a second period of renewable power generation facilities among the power generators for a next first period based on the measurement information and the weather information; a control amount calculation unit which outputs control parameters for the power generators, the energy storage unit, and the load for the second period based on the predicted power generation amount and the predicted load amount for the second period; and a ...

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Номер записи: 8
29-03-2018 дата публикации

SYSTEM AND METHOD FOR SWITCHING LINE SHORT-CIRCUIT FAULT SECTION IN INVERTER-BASED STAND-ALONE MICROGRID

Номер: WO2018056503A1
Автор: WON, Jong-Nam, CHAE, Woo-Kyu, LEE, Hak-Ju, PARK, Jung-Sung, SIM, Jun-Bo
Принадлежит:

The present invention provides a system and a method for switching a line short-circuit fault section in an inverter-based stand-alone microgrid, the system comprising: multiple intelligent switchgears disposed on a line in a stand-alone microgrid so as to control opening or closing of the line; a battery inverter having a built-in current limiter so as limit a current output therefrom; and an operating system for receiving short-circuit fault information of the line from the multiple intelligent switchgears, determining a fault section, and controlling the battery inverter to limit the output current. The present invention can quickly and accurately switch a line short-circuit fault section occurring in a stand-alone microgrid which does not include separate cutoff equipment such as a recloser.

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Номер записи: 9
22-03-2018 дата публикации

METHOD FOR DISTRIBUTING ACTIVE POWER BETWEEN MICROGRIDS IN MULTI MICROGRID

Номер: WO2018052162A1
Автор: SIM, Jun-Bo, LEE, Hak-Ju, CHAE, Woo-Kyu, SHIN, Chang-Hoon, PARK, Jung-Sung, WON, Jong-Nam
Принадлежит:

The present invention relates to a method for distributing active power between microgrids in a multi microgrid, comprising the steps of: collecting output information of each microgrid in the multi microgrid; calculating a total output, of the multi microgrid, which is required for frequency control of an entire power system frequency; classifying microgrids, which can participate in frequency control, of the multi microgrid; calculating an output command for the participating microgrids classified in the step of classifying the microgrids, which can participate, with respect to the total output calculated in the step of calculating the total output; and distributing, to the participating microgrids, the output command calculated in the step of calculating the output command. According to the present invention, active power between microgrids participating in frequency control in a multi microgrid can be efficiently distributed.

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Номер записи: 10
22-03-2018 дата публикации

PCS EFFICIENCY-CONSIDERED MICROGRID OPERATION DEVICE AND OPERATION METHOD

Номер: WO2018052163A1
Автор: CHAE, Woo-Kyu, LEE, Hak-Ju, PARK, Jung-Sung, WON, Jong-Nam, SIM, Jun-Bo
Принадлежит:

The present invention relates to a power conditioning system (PCS) efficiency-considered microgrid operation device comprising: a scheduling unit for scheduling outputs of a controllable load, a battery, and an emergency internal combustion generator operated in a microgrid; and an operation control unit for controlling the operation of the battery, the emergency internal combustion generator, and the controllable load according to charging/discharging of the battery, the output of the emergency internal combustion generator, and the output of the controllable load, which have been scheduled by the scheduling unit, wherein the scheduling unit schedules charging/discharging by considering the efficiency of a PCS such that a state of charge (SOC) of the battery is maintained within a preset range. According to the present invention, the microgrid can be efficiently operated by considering the charging/discharging efficiency of the PCS.

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Номер записи: 11
23-01-2017 дата публикации

INVERTER DEVICE FOR MICROGRID AND CONTROLLING METHOD THEREOF

Номер: KR101699174B1
Автор: CHAE, WOO KYU, LEE, HAK JU, WON, JONG NAM, SONG, IL KEUN, PARK, JUNG SUNG, HWANG, SUNG WOOK
Принадлежит: KOREA ELECTRIC POWER CORPORATION

The present invention relates to an inverter device for a microgrid and a controlling method thereof. The inverter device for a microgrid includes a waveform sensing unit which senses a voltage waveform and a current waveform applied to a load, a control unit which determines whether a sine wave is generated based on the sensed voltage waveform and current waveform and performs a voltage control or a low-order harmonic compensation according to a determination result, and a switching unit which generates a voltage waveform of a sine wave shape by being turned on/off according to a control signal received from the control unit and supplies the generated voltage waveform of the sine wave shape to a load side. Accordingly, the present invention can compensate the distortion of the voltage waveform. COPYRIGHT KIPO 2017 (100,FF) Inverter (AA) Solar generator (BB) Battery (CC) Governor (DD) Exciter (EE) Solar light (GG) Diesel generator (HH) Diesel (II) Wind power (JJ) Wind generator (KK,OO) ...

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Номер записи: 12
23-03-2023 дата публикации

배전 계통에 구비된 태양광 설비들의 발전량 추정 방법 및 시스템

Номер: KR20230040608A
Автор: 김정헌, 추철민, 심재성, 정원욱, 원종남
Принадлежит:

... 본 발명의 배전 계통에 구비된 태양광 설비들의 발전량 추정 방법은, 대상 배전 계통에 구비된 태양광 설비들에 대한 AMI 검침 데이터를 포함한 관련 정보들을 수집하여 정리하는 데이터 수집/정리 단계; 정리된 상기 태양광 설비들에 대한 관련 정보들로부터 각 태양광 설비들을 분류하는 PV 분류 단계; 미계측 PV가 아닌 것으로 분류된 각 태양광 설비들에 대하여 AMI 검침 데이터로부터 발전량의 실시간 계측 데이터를 정밀추정하는 정밀추정 단계; 및 정밀추정된 상기 실시간 계측 데이터를 기반으로 미계측 PV로 분류된 각 태양광 설비들의 발전량을 추정하는 미계측 PV 추정 단계를 포함할 수 있다.

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Номер записи: 13
30-07-2018 дата публикации

인버터 기반 독립형 마이크로그리드 내 선로 단락 고장구간 절체 시스템 및 절체 방법

Номер: KR0101883558B1
Автор: 원종남, 채우규, 이학주, 박중성, 심준보
Принадлежит: 한국전력공사

... 본 발명은 독립형 마이크로그리드 내 선로 상에 복수로 마련되어 선로의 개방 또는 투입을 제어하는 지능화 개폐기, 전류리미터를 내장하여 출력전류의 제한이 가능한 배터리 인버터 및 상기 복수의 지능화 개폐기로부터 상기 선로의 단락고장 정보를 수신하여 고장구간을 판단하고, 상기 배터리 인버터가 출력전류를 제한하도록 제어하는 운영시스템을 포함하는 인버터 기반 독립형 마이크로그리드 내 선로 단락 고장구간 절체 시스템 및 절체 방법으로서, 리클로저(Recloser)와 같은 별도의 차단설비가 구비되지 못하는 독립형 마이크로그리드 내에서 발생하는 선로 단락 고장구간을 신속하고 정확하게 절체하는 것이 가능하다.

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Номер записи: 14
29-03-2018 дата публикации

METHOD FOR CONTROLLING FREQUENCY OF STAND-ALONE MICROGRID AND POWER CONVERTER FOR ENERGY STORAGE DEVICE FOR CONTROLLING SAME

Номер: WO2018056504A1
Автор: LEE, Hak-Ju, WON, Jong-Nam, SIM, Jun-Bo, CHAE, Woo-Kyu, PARK, Jung-Sung
Принадлежит:

The present invention relates to a method for controlling the frequency of a stand-alone microgrid wherein an energy storage device of the stand-alone microgrid is operated as a main power source by controlling a battery power conditioning system (PCS) of the stand-alone microgrid in a constant voltage constant frequency (CVCF) mode. According to the present invention, it is possible to operate the frequency stably while considering the fuel cost and power generation efficiency of a stand-alone microgrid.

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Номер записи: 15
16-03-2017 дата публикации

INVERTER DEVICE FOR MICROGRID, AND METHOD FOR CONTROLLING SAME

Номер: WO2017043750A1
Автор: CHAE, Woo-Kyu, LEE, Hak-Ju, WON, Jong-Nam, SONG, Il-Keun, PARK, Jung-Sung, HWANG, Sung-Wook
Принадлежит:

The present invention relates to an inverter device for a microgrid, and a method for controlling the same, the inverter device for a microgrid comprising: a waveform detection part for detecting a voltage waveform and a current waveform applied to a load; a control part for determining whether a sine wave has been generated on the basis of the detected voltage waveform and current waveform, and performing voltage control or low-order harmonics compensation according to the determination result; and a switching part for generating a voltage waveform in the form of a sine wave while being turned on/off according to a control signal received from the control part, and supplying the generated voltage waveform in the form of a sine wave to the load.

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Номер записи: 16
08-07-2016 дата публикации

INDEPENDENT MICROGRID SYSTEM

Номер: KR1020160081216A
Автор: LEE, HAK JU, CHAE, WOO KYU, HWANG, SUNG WOOK, WON, JONG NAM
Принадлежит:

An embodiment of the present invention relates to an independent microgrid system. A technical task to be performed is to provide an independent microgrid system for islands, which is cheaper and can be operated efficiently, to overcome the shortcoming of a traditional EMS-independent microgrid system. For the purpose, the present invention provides an independent microgrid system comprising: a battery energy storage device capable of being discharged by providing power to a load or being charged; a new and renewable energy source for supplying power to a load or charging the battery energy storage device; and a diesel engine power generation device for supplying power to a load or charging the battery energy storage device, wherein the battery energy storage device directly controls the new and renewable energy source and the diesel engine power generation device. COPYRIGHT KIPO 2016 ...

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Номер записи: 17