KR101301214B1 - Generate for cutting peak of grid-connected maximum demand power - Google Patents

Generate for cutting peak of grid-connected maximum demand power Download PDF

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KR101301214B1
KR101301214B1 KR1020130041573A KR20130041573A KR101301214B1 KR 101301214 B1 KR101301214 B1 KR 101301214B1 KR 1020130041573 A KR1020130041573 A KR 1020130041573A KR 20130041573 A KR20130041573 A KR 20130041573A KR 101301214 B1 KR101301214 B1 KR 101301214B1
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South Korea
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power
emergency
emergency generator
automatic controller
generator
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KR1020130041573A
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Korean (ko)
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문희봉
조영숙
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(주)이스트파워
조영숙
오성기전주식회사
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J3/144—Demand-response operation of the power transmission or distribution network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

PURPOSE: A grid-connected peak control generator reduces power prices and maintains power quality by reducing the maximum power demand value at a point when power consumption is increased using an emergency generator. CONSTITUTION: A control generator includes a comprehensive automatic controller (100). The comprehensive automatic controller monitors the maximum power demand value when power consumption of a load side exceeds first step reference power and is continuously increased. The comprehensive automatic controller applies a control signal for operating emergency electricity generation to an emergency generator (200) when it is predicted that the monitored maximum power demand value exceeds a predetermined target peak value. The comprehensive automatic controller controls the peak value to be reduced by operating a power system and the emergency generator of a power plant in parallel using a synchronous detection function when an electricity generation voltage reaches a rated voltage. [Reference numerals] (100) Comprehensive automatic controller; (200) Emergency generator; (AA) Power plant side lead-in line; (BB) Transformer 1; (CC) Transformer 2; (DD) Normal load low voltage board 1; (EE) Normal load low voltage board 1; (FF) Emergency load

Description

계통연계형 피크제어 발전기{GENERATE FOR CUTTING PEAK OF GRID-CONNECTED MAXIMUM DEMAND POWER}Grid-connected peak control generator {GENERATE FOR CUTTING PEAK OF GRID-CONNECTED MAXIMUM DEMAND POWER}

본 발명은 계통연계형 최대수요전력 초과 방지 발전 시스템 및 이를 이용한 비상발전기 운전 방법에 관한 것으로 더욱 상세하게는, 전력소비가 증가되는 시점에 비상발전기를 활용하여 최대수요전력치(피크치)를 낮추(Peak Cut)어 전력요금을 절감시키는 기술에 관한 것이다.The present invention relates to a grid-connected maximum demand exceeding power generation prevention system and a method of operating an emergency generator using the same in more detail, by lowering the maximum demand power (peak) by utilizing an emergency generator at the time when the power consumption is increased ( Peak Cut) It is related to a technology for reducing power bills.

일정 규모 이상의 전기 수용가는 한전에서 전력을 수전하여 사용하는 데에 있어서 전력요금이 건물의 운영 및 공장운영 등에 크게 부담이 되는 것이 사실이다. 전력요금은 기본요금과 사용량요금으로 구성되는데, 하절기 및 동절기 등 전력 수요가 타 계절보다 증가되는 시기에는 전력사용량의 증가와 더불어 기본요금 부과의 근거가 되는 최대수요전력도 상승하게 된다.It is true that the electricity bill is a huge burden on the operation of the building and the operation of the plant when receiving electricity over a certain scale. The electricity bill consists of the basic fee and the usage fee. When the demand for electricity in summer and winter seasons is higher than in other seasons, the electricity consumption increases and the maximum demand power, which is the basis for the basic charges, also increases.

그러나, 일단 최대수요전력치를 한번이라도 상승하여 경신하게 되면 1년 동안 이 경신치로 기본요금을 적용받게 됨에 따라 전력요금 절감을 위해 다양한 노력이 뒤따르고 있다.However, once the maximum demand power value has been raised and renewed, various efforts have been made to reduce the power rate as the base rate is applied to the renewed value for one year.

현재는 대부분의 수용가에서 고가의 전력요금을 부담하거나, 이 피크치를 줄이기 위하여 부하의 우선순위를 정하여 인위적으로 일부 부하에 공급되는 전력을 차단하여 피크치를 줄이는 노력이 계속되고 있다. 그러나, 전력공급을 인위적으로 차단함에 따라 조업의 축소 및 많은 불편이 초래되는 문제점이 있다. At present, efforts are being made to reduce the peak value by most of the consumers paying an expensive power rate or by prioritizing the load to cut off the power artificially supplied to some loads in order to reduce the peak value. However, there is a problem that the reduction of the operation and a lot of inconvenience caused by artificially blocking the power supply.

대한민국 등록특허 제10-1157651호(피크시 발전기로 전원절체 가능한 최대수요전력 관리장치 및 그 제어방법)에는, 최대수요전력이 목표전력 이상인 경우, 발전기를 기동하도록 발전기 감시제어부를 제어하고, 자동전환스위치(ATS)가 발전기의 전원을 공급전원으로 선택하도록 ATS 감시제어부를 제어하고, 발전기의 전원으로 절체되어 복수의 부하를 운용하는 경우, 발전기가 비정상상태일 때, 발전기에 연결된 복수의 부하의 가동을 소정 순서에 의해 오프하도록 부하 감시제어부를 제어하는 최대수요전력 관리장치에 기술이 개시되어 있다.In Korean Patent No. 10-1157651 (the maximum demand power management device capable of switching power to a peak generator and its control method), when the maximum demand power is higher than the target power, the generator supervisory control unit is controlled to start the generator, and is automatically switched. When the switch (ATS) controls the ATS supervisory control unit to select the power of the generator as the supply power, and switches to the power of the generator to operate a plurality of loads, when the generator is in an abnormal state, operation of the plurality of loads connected to the generator is performed. The technique is disclosed in the maximum demand power management device for controlling the load monitoring control unit to turn off the power in a predetermined order.

그러나, 전술한 선행특허의 경우, 기존에 비상발전기가 설치된 건물 또는 공장에는 최대수요전력 관리장치를 적용이 불가능하기 때문에 장치 설치에 많은 비용이 발생하는 문제점이 있다.However, in the case of the above-described prior patent, there is a problem in that the installation of the emergency generator is not possible to apply the maximum demand power management device in the building or the factory is a high cost to install the device.

본 발명의 목적은, 전력소비가 증가되는 시점에 비상발전기를 활용하여 최대수요전력치(피크치)를 낮춤(Peak Cut)으로써, 전력요금을 절감시키는데 그 목적이 있다.An object of the present invention is to reduce the electricity bill by reducing the maximum demand power (peak) by utilizing an emergency generator at the time when the power consumption is increased.

또한, 본 발명의 목적은, 기존에 설치된 비상발전기 및 신설되는 비상발전기에도 적용이 가능함으로써, 소비자의 부담을 최소화 할 수 있고 동시에 절체시 무정전으로 작동하므로 전력품질 유지에도 탁월한 최대수요전력 초과 방지 시스템을 제공하는데 그 목적이 있다.In addition, the object of the present invention, it can be applied to the existing emergency generator and the newly installed emergency generator, it is possible to minimize the burden on the consumer and at the same time operating uninterrupted at the same time, the maximum demand power exceeding prevention system excellent in maintaining the power quality The purpose is to provide.

또한, 본 발명의 목적은, 비상발전장치와 최대수요전력치 제어장치를 통합적으로 공급함으로써, 수요자의 요구에 부합하는 시스템을 제공하는데 그 목적이 있다.It is also an object of the present invention to provide a system that meets the needs of the consumer by integrating the emergency power generator and the maximum demand power value control device.

그리고, 본 발명의 목적은, 운영자의 편리성을 도모하기 위하여 로컬운전을 기본으로 유무선 선로를 이용하여 전용단말기, 인터넷망에 연결된 컴퓨터 또는 스마트폰을 이용하여 원격감시제어를 제공하는데 그 목적이 있다.In addition, an object of the present invention is to provide a remote monitoring control using a dedicated terminal, a computer or a smart phone connected to the Internet network using a wired or wireless line based on local operation in order to facilitate the operator's convenience. .

이러한 기술적 과제를 달성하기 위한 본 발명의 계통연계형 최대수요전력 초과 방지 발전 시스템은, 발전소로부터의 수전이 정상적으로 이루어지되, 부하측의 소비전력이 기 설정된 1단계 기준전력을 초과하여 지속적으로 증가하는 경우, 수전용 인입간선에 설치된 계기용 변압기(PT) 및 변류기(CT)의 전기신호를 인가받아 최대수요전력치(피크치)를 연속적으로 모니터링하되, 모니터링 중인 최대수요전력치가 지속적으로 증가하여 1단계 설정치를 초과하여 기 설정된 목표 피크치를 초과할 것으로 예측되는 경우, 비상발전기 가동을 위한 제어신호를 비상발전기(200)로 인가하며, 발전전압 및 주파수가 정격에 도달하는 경우, 동기검출 기능을 이용하여 발전소의 전력계통과 비상발전기(200)를 병렬 운전하여 피크치를 낮추(Peak Cut)도록 제어하는 종합자동제어기(100);를 포함한다.
In the system-connected maximum demand power prevention system of the present invention for achieving the above technical problem, when the power receiving from the power plant is normally made, the power consumption of the load side is continuously increased beyond the preset first stage reference power. In order to continuously monitor the maximum demand power value (peak value) by receiving electric signals from the instrument transformer (PT) and the current transformer (CT) installed on the incoming lead line, the maximum demand power value being monitored is continuously increased to set the 1st stage. When it is predicted to exceed the predetermined target peak value exceeds, the control signal for operating the emergency generator is applied to the emergency generator 200, and when the generation voltage and frequency reaches the rating, by using the synchronous detection function Total automatic control to lower the peak value by operating the power system and emergency generator 200 in parallel It includes; controller 100.

그리고, 전술한 시스템을 기반으로 하는 본 발명의 계통연계형 최대수요전력 초과 방지 발전 시스템을 이용한 비상발전기 운전 방법은, 종합자동제어기가 부하측의 소비전력이 기 설정된 1단계 기준전력을 초과하여 지속적으로 증가하는지 여부를 판단하는 (a) 단계; (a) 단계의 판단결과, 부하측의 소비전력이 기 설정된 1단계 기준전력을 초과하여 지속적으로 증가하는 경우, 종합자동제어기가 수전용 인입간선에 설치된 계기용 변압기(PT) 및 변류기(CT)의 전기신호를 인가받아 최대수요전력치(피크치)를 연속적으로 모니터링하는 (b) 단계; 종합자동제어기가 모니터링 중인 최대수요전력치가 지속적으로 증가하여 기 설정된 목표 피크치의 초과를 예측하는 (c) 단계; 모니터링 중인 최대수요전력치가 지속적으로 증가하여 기 설정된 목표 피크치의 초과가 예측되는 경우, 종합자동제어기가 비상발전 가동을 위한 제어신호를 비상발전기로 인가하는 (d) 단계; 종합자동제어기가 발전전압이 정격전압 및 주파수에 도달하는지 여부를 판단하는 (e) 단계; (e) 단계의 판단결과, 정격전압 및 주파수가 정격에 도달하는 경우, 종합자동제어기가 동기검출 기능을 이용하여 발전소의 전력계통과 비상발전기를 병렬 운전하도록 제어하여 피크치를 낮추는 (f) 단계; 및 모니터링결과 전력수요가 기 설정된 1단계 기준전력 미만으로 감소하는 경우, 종합자동제어기가 비상발전 가동을 중단시키는 제어신호를 비상발전기로 인가하여 비상발전기를 정지시키는 (g) 단계;를 포함한다.In addition, the emergency generator operation method using the grid-connected maximum demand electric power exceeding prevention power generation system of the present invention based on the above system, the integrated automatic controller continuously exceeds the preset one-stage reference power consumption of the load side (A) determining whether to increase; (a) As a result of determining in step (a), when the power consumption on the load side continuously increases beyond the preset 1st stage reference power, the integrated automatic controller of the transformer (PT) and current transformer (CT) (B) continuously monitoring the maximum demand power value (peak value) by receiving an electric signal; (C) predicting the exceeding of the preset target peak value by continuously increasing the maximum demand power value being monitored by the integrated automatic controller; (D) applying a control signal for emergency power generation to the emergency generator by the integrated automatic controller when the maximum demand power value being monitored is continuously increased to exceed the preset target peak value; (E) determining, by the integrated automatic controller, whether the generated voltage reaches the rated voltage and frequency; (f) lowering the peak value by controlling the integrated power controller to operate the power system of the power plant and the emergency generator in parallel by using a synchronous detection function when the rated voltage and frequency reach the rated result as a result of step (e); And (g) stopping the emergency generator by applying a control signal for stopping the emergency power generation to the emergency generator when the power demand decreases below the preset first stage reference power as a result of the monitoring.

상기와 같은 본 발명에 따르면, 전력소비가 증가되는 시점에 비상발전기를 활용하여 최대수요전력치(피크치)를 낮춤(Peak Cut)으로써, 전력요금을 절감시키는 효과가 있다.According to the present invention as described above, by lowering the maximum demand power value (Peak value) using the emergency generator at the time when the power consumption is increased (Peak Cut), there is an effect of reducing the power bill.

또한, 본 발명에 따르면, 기존에 설치된 비상발전기 및 신설되는 비상발전기에도 적용이 가능함으로써, 소비자의 부담을 최소화 할 수 있고 동시에 절체시 무정전으로 작동하므로 전력품질 유지에도 탁월한 최대수요전력 초과 방지 시스템을 제공하는 효과가 있다.In addition, according to the present invention, it is possible to apply to the existing emergency generator and the newly installed emergency generator, which can minimize the burden on the consumer and at the same time operate uninterrupted when switching, the maximum demand power exceeding prevention system excellent in maintaining the power quality It is effective to provide.

또한, 본 발명에 따르면, 비상발전기를 계통에 연계시키는 종합제어장치 및 비상발전장치(비상발전장치는 선택 사항)를 통합적으로 공급함으로써, 수요자의 요구에 부합하는 시스템을 제공하는 효과가 있다.In addition, according to the present invention, by providing the integrated control unit and the emergency power generator (emergency power generator optional) to link the emergency generator to the system, there is an effect of providing a system that meets the needs of the consumer.

그리고, 본 발명에 따르면, 운영자의 편리성을 도모하기 위하여 로컬운전을 기본으로 유무선 선로를 이용하여 전용단말기, 인터넷망에 연결된 컴퓨터 또는 스마트폰을 이용하여 원격감시제어를 제공하는 효과가 있다.In addition, according to the present invention, there is an effect of providing a remote monitoring control using a dedicated terminal, a computer or a smart phone connected to the Internet network using a wired or wireless line based on local operation in order to facilitate the operator's convenience.

도 1은 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템을 도시한 구성도.
도 2는 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템을 이용한 비상발전기 운전 방법을 도시한 순서도.
도 3은 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템을 이용한 비상발전기 운전 방법의 제S60단계 이후과정을 도시한 순서도.
도 4는 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템을 이용한 비상발전기 운전 방법의 제S70단계 이후과정을 도시한 순서도.1 is a block diagram showing a grid-connected maximum demand power exceeding power generation system according to the present invention.
2 is a flowchart illustrating a method of operating an emergency generator using a grid-connected maximum demand power prevention power generation system according to the present invention.
Figure 3 is a flow chart illustrating a process after step S60 of the emergency generator operation method using a grid-connected maximum demand power exceeding power generation system according to the present invention.
Figure 4 is a flow chart illustrating a process after step S70 of the emergency generator operation method using a grid-connected maximum demand power exceeding power generation system according to the present invention.

본 발명의 구체적인 특징 및 이점들은 첨부도면에 의거한 다음의 상세한 설명으로 더욱 명백해질 것이다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 발명자가 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야 할 것이다. 또한, 본 발명에 관련된 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는, 그 구체적인 설명을 생략하였음에 유의해야 할 것이다.Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms and words used in the present specification and claims are to be interpreted in accordance with the technical idea of the present invention based on the principle that the inventor can properly define the concept of the term in order to explain his invention in the best way. It should be interpreted in terms of meaning and concept. In addition, when it is determined that the detailed description of the configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, it should be noted that the detailed description is omitted.

도 1에 도시된 바와 같이, 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템(S)은 종합자동제어기(100) 및 비상발전기(200)를 포함한다.As shown in FIG. 1, the grid-connected maximum demand power generation prevention system S according to the present invention includes a comprehensive automatic controller 100 and an emergency generator 200.

구체적으로, 도 1을 참조하여 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템(S)의 제1 운전모드 에 대해 살피면 아래와 같다.Specifically, referring to FIG. 1, the following description will be made about the first operation mode of the grid-connected maximum demand power exceeding generation power generation system S according to the present invention.

종합자동제어기(100)는 발전소로부터의 수전이 정상적으로 이루어지되, 부하측의 소비전력이 기 설정된 1단계 기준전력을 초과하여 지속적으로 증가하는 경우, 수전용 인입간선에 설치된 계기용 변압기(PT) 및 변류기(CT)의 전기신호를 인가받아 최대수요전력치(피크치)를 연속적으로 모니터링 한다.The integrated automatic controller 100 receives power from the power plant normally, but when the power consumption on the load side continuously increases beyond the preset first-stage reference power, the instrument transformer (PT) and the current transformer installed in the incoming lead line The maximum demand power value (peak value) is continuously monitored by receiving electric signal of (CT).

이때, 모니터링 중인 최대수요전력치가 지속적으로 증가하여 기 설정된 목표 피크치를 초과할 것으로 예측되는 경우, 종합자동제어기(100)가 비상발전 가동을 위한 제어신호를 비상발전기(200)로 인가하며, 발전전압 및 주파수가 정격에 도달하는 경우, 동기검출 기능을 이용하여 발전소의 전력계통과 비상발전기(200)를 병렬 운전하여 피크치를 낮추(Peak Cut)도록 제어한다.At this time, when it is predicted that the maximum demand power value being monitored is continuously increased to exceed the preset target peak value, the integrated automatic controller 100 applies a control signal for emergency power generation to the emergency generator 200 and generates power. And when the frequency reaches the rating, by using the synchronous detection function to control the power system of the power plant and the emergency generator 200 in parallel to control the peak value (Peak Cut).

또한, 종합자동제어기(100)는 비상발전기(200)와 한전전력계통과 병렬운전시, 한전의 분산전원의 연계기술기준에 의거 어떠한 경우에라도 비상발전기가 단독운전을 수행하는 것을 방지하며, 비상발전기(200)에서 발전소와 연결된 계통측으로 전력이 역 송전되는 것을 방지한다.In addition, the integrated automatic controller 100 prevents the emergency generator from performing a single operation in any case based on the technical standards of the distributed power generation of KEPCO during parallel operation with the emergency generator 200 and the KEPCO power system. At 200, the power is prevented from being reversed to the grid side connected to the power plant.

또한, 종합자동제어기(100)는 모니터링결과 전력수요가 기 설정된 1단계 기준전력 미만으로 감소하는 경우, 비상발전 가동을 중단시키는 제어신호를 비상발전기(200)로 인가하여 비상발전기(200)를 정지시킨다.In addition, the integrated automatic controller 100 stops the emergency generator 200 by applying a control signal for stopping the emergency power generation to the emergency generator 200 when the power demand decreases below the preset first stage reference power. Let's do it.

그리고, 종합자동제어기(100)는 모니터링한 최대수요전력치(피크치)를 기 설정된 전용단말기, 인터넷망에 연결된 컴퓨터 또는 스마트폰으로 전송하여 관리자가 전력계통 상태를 실시간으로 확인하도록 한다.In addition, the integrated automatic controller 100 transmits the monitored maximum demand power value (peak value) to a preset dedicated terminal, a computer or a smart phone connected to the Internet network, so that the administrator checks the power system status in real time.

이하에서는 그 구체적인 언급을 생략하겠으나, 본 발명에 따른 시스템에는 단독운전 방지장치 및 역송전 방지장치가 구비되어있어 전기안전에 문제가 없으며, 한전의 분산전원 연계기술기준에도 100% 만족하도록 구성되어있다.
In the following, the detailed description will be omitted, but the system according to the present invention is equipped with a single operation prevention device and a reverse power transmission prevention device, so there is no problem in electrical safety, and is configured to satisfy 100% of KEPCO's distributed power supply technology standards. .

이하, 도 1을 참조하여 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템(S)의 제2 운전모드 에 대해 살피면 아래와 같다.Hereinafter, a second operation mode of the grid-connected maximum demand power exceeding generation power generation system S according to the present invention will be described with reference to FIG. 1.

전술한 제1 운전모드 상태로 운전중에, 발전소로부터의 수전이 비정상적으로 중단되는 경우, 종합자동제어기(100)가 비상발전기(200)와 연결된 ATS(Auto Transfer Switch)를 경유하여 무정전으로 비상부하에 비상전력을 공급한다.If the faucet from the power plant is abnormally interrupted while operating in the above-described first operation mode, the integrated automatic controller 100 may be uninterrupted to the emergency load via the ATS (Auto Transfer Switch) connected to the emergency generator 200. Supply emergency power.

또한, 비상부하에 비상전력 공급 중에 발전소로부터의 전력공급이 복전되는 경우, 종합자동제어기(100)가 바이패스 ACB(Air Circuit Breaker)에 의해 비상발전기(200)가 병렬운전을 수행하도록 제어하되, 모니터링한 최대수요전력치(피크치)의 증가가 멈추는 경우, 종합자동제어기(100)가 ATS를 발전소측으로 전환함과 동시에 ACB를 차단시킨 후, 비상발전기(200)를 정지시켜서 비상부하에 무정전으로 전력을 공급하도록 제어한다.
In addition, when the power supply from the power plant is restored during the emergency power supply to the emergency load, the comprehensive automatic controller 100 controls the emergency generator 200 to perform parallel operation by the bypass ACB (Air Circuit Breaker), When the increase in the monitored maximum demanded power value (peak value) stops, the integrated automatic controller 100 switches the ATS to the power plant side and at the same time cuts off the ACB, stops the emergency generator 200 and uninterrupted power at emergency load. Control to supply.

그리고, 도 1을 참조하여 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템(S)의 제3 운전모드 에 대해 살피면 아래와 같다.In addition, referring to FIG. 1, the third operation mode of the grid-connected maximum demand power exceeding generation power generation system S according to the present invention is as follows.

발전소로부터 수전하고 비상발전기가 정지하고 있는 상태에서 발전소로부터의 수전이 중단되는 경우, 종합자동제어기(100)가 비상발전기(200)를 자동으로 가동시켜 비상부하에 전력을 공급하도록 제어하되, 발전소로부터의 전력공급이 복전되는 경우, 바이패스 ACB를 ON상태로 전환하여 병렬운전 상태를 만든 다음, ATS를 발전소측으로 전환한 후 바이패스 ACB를 차단하고, 비상발전기(200) 작동을 정지시킨다.
When receiving power from the power plant and receiving power from the power plant is stopped while the emergency generator is stopped, the comprehensive automatic controller 100 automatically operates the emergency generator 200 to control power to supply emergency load, but from the power plant When the power supply is restored, the bypass ACB is turned ON to create a parallel operation state, then the ATS is switched to the power plant side, the bypass ACB is cut off, and the emergency generator 200 is stopped.

그리고, 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템(S)의 제1 운전모드, 제2 운전모드 및 제3 운전모드 중에 어느 하나의 모드에서, 피크가 계속 증가되어 비상발전기(200)의 병렬운전만으로는 목표피크치 제어가 불가능한 경우, 종합자동제어기(100)가 종래의 최대수요전력제어기와 동일하게 부하의 중요도에 따라 미리 정한 순서대로 부하의 차단을 제어하도록 구성된다.In addition, in any one of the first operation mode, the second operation mode, and the third operation mode of the grid-connected maximum demand power exceeding generation power generation system S according to the present invention, the peak is continuously increased so that the emergency generator 200 If the target peak control is not possible only by parallel operation of), the integrated automatic controller 100 is configured to control the interruption of the load in a predetermined order according to the importance of the load in the same way as the conventional maximum demand power controller.

아울러, 전술한 바와 같이 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템(S)은, 제1 운전모드 내지 제3 운전모드 각각이, 1) 최대수요전력 감시기능, 2) 비상발전기 단독운전방지 기능, 3) 동기운전 기능, 4) 병렬운전시 발전전력 발전소측으로의 역송전방지 기능, 5) 병렬운전시 발전소측 전력이 비상발전기측으로의 유입 방지 기능, 6) 비상발전기의 전압조정 및 주파수제어, 출력제어 기능, 7) 각종 전기량 계측 기능, 8) 각종 안전 및 효율적인 운영을 위한 인터록 기능을 수행함으로써, 안전하고 효율적인 전력 운용을 제공한다.
In addition, as described above, the system-connected maximum demand power exceeding generation power generation system S according to the present invention includes a first operation mode and a third operation mode, respectively, 1) maximum demand power monitoring function, and 2) an emergency generator alone. Operation prevention function, 3) Synchronous operation function, 4) Reverse transmission prevention function to power generation power plant in parallel operation, 5) Prevention of inflow of power plant side to emergency generator in parallel operation, 6) Voltage regulation of emergency generator and Provides safe and efficient power operation by performing frequency control, output control function, 7) various electric quantity measurement function, 8) interlock function for various safety and efficient operation.

이하, 도 2를 참조하여 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템을 이용한 비상발전기 운전 방법에 대해 살피면 아래와 같다.Hereinafter, an emergency generator operating method using the grid-connected maximum demand electric power exceeding prevention power generation system according to the present invention will be described with reference to FIG. 2.

먼저, 종합자동제어기(100)가 부하측의 소비전력이 기 설정된 1단계 기준전력을 초과하여 지속적으로 증가하는지 여부를 판단한다(S10).First, the integrated automatic controller 100 determines whether the power consumption of the load side continuously increases beyond the preset first stage reference power (S10).

제S10단계의 판단결과, 부하측의 소비전력이 기 설정된 1단계 기준전력을 초과하여 지속적으로 증가하여 목표 최대수요전력의 초과가 예측되는 경우, 종합자동제어기(100)가 수전용 인입간선에 설치된 계기용 변압기(PT) 및 변류기(CT)의 전기신호를 인가받아 최대수요전력치(피크치)를 연속적으로 모니터링 한다(S20).As a result of the determination in step S10, when the power consumption of the load side is continuously increased beyond the preset first stage reference power, and the target maximum demand power is predicted to exceed, the integrated automatic controller 100 is installed on the incoming lead line. The electric power of the transformer (PT) and the current transformer (CT) is applied to continuously monitor the maximum demand power (peak) (S20).

뒤이어, 종합자동제어기(100)가 모니터링 중인 최대수요전력치가 지속적으로 증가하여 기 설정된 목표 피크치의 초과가 예측되는지 여부를 판단한다(S30).Subsequently, the integrated automatic controller 100 determines whether the maximum demand power value that is being monitored is continuously increased to predict the excess of the preset target peak value (S30).

제S30단계의 판단결과, 모니터링 중인 최대수요전력치가 지속적으로 증가하여 기 설정된 목표 피크치의 초과가 예측되는 경우, 종합자동제어기(100)가 비상발전 가동을 위한 제어신호를 비상발전기(200)로 인가한다(S40).As a result of the determination in step S30, when the maximum demand power value being monitored is continuously increased to exceed the preset target peak value, the integrated automatic controller 100 applies the control signal for emergency power generation to the emergency generator 200. (S40).

이어서, 종합자동제어기(100)가 발전전압이 정격전압 및 주파수가 정격에 도달하는지 여부를 판단한다(S50).Subsequently, the integrated automatic controller 100 determines whether the generated voltage reaches the rated voltage and the rated frequency (S50).

제S50단계의 판단결과, 발전전압이 정격전압 및 주파수가 정격에 도달하는 경우, 종합자동제어기(100)가 동기검출 기능을 이용하여 발전소의 전력계통과 비상발전기(200)를 병렬 운전하도록 제어하여 피크치를 낮춘다(S60).As a result of the determination in step S50, when the generated voltage reaches the rated voltage and the frequency, the integrated automatic controller 100 controls the parallel operation of the power system of the power plant and the emergency generator 200 using the synchronous detection function. Lower the peak value (S60).

그리고, 모니터링 결과 전력수요가 기 설정된 1단계 기준전력 미만으로 감소하는 경우, 종합자동제어기(100)가 비상발전 가동을 중단시키는 제어신호를 비상발전기(200)로 인가하여 비상발전기(200)의 가동이 정지하도록 제어한다(S70).When the power demand decreases below the preset first stage reference power, the integrated automatic controller 100 applies the control signal for stopping the emergency power generation to the emergency power generator 200 to operate the emergency power generator 200. It is controlled to stop (S70).

이하, 도 3을 참조하여 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템을 이용한 비상발전기 운전 방법의 제S60단계 이후과정에 대해 살피면 아래와 같다.Hereinafter, referring to FIG. 3, the process after step S60 of the emergency generator operating method using the grid-connected maximum demand power prevention system according to the present invention is as follows.

제S60단계 이후, 종합자동제어기(100)가 발전소로부터의 수전이 비정상적으로 중단되는지 여부를 판단한다(S80).After step S60, the integrated automatic controller 100 determines whether the power supply from the power plant is abnormally stopped (S80).

제S80단계의 판단결과, 발전소로부터의 수전이 비정상적으로 중단되는 경우, 종합자동제어기(100)가 비상발전기(200)와 연결된 ATS(Auto Transfer Switch)를 경유하여 무정전으로 비상부하에 비상전력을 공급한다(S90).As a result of the determination in step S80, when the power supply from the power plant is abnormally interrupted, the integrated automatic controller 100 supplies emergency power to the emergency load with an uninterruptible power via an ATS (Auto Transfer Switch) connected to the emergency generator 200. (S90).

이어서, 종합자동제어기(100)가 비상부하에 비상전력이 공급되는 중에 발전소로부터의 전력공급이 복전되는지 여부를 판단한다(S100).Subsequently, the integrated automatic controller 100 determines whether the power supply from the power plant is restored while emergency power is supplied to the emergency load (S100).

제S100단계의 판단결과, 비상부하에 비상전력 공급 중에 발전소로부터의 전력공급이 복전되는 경우, 종합자동제어기(100)가 바이패스 ACB(Air Circuit Breaker)에 의해 비상발전기(200)가 병렬운전을 수행하도록 제어한다(S110).As a result of the determination in step S100, when the power supply from the power plant is restored during the emergency power supply to the emergency load, the emergency generator 200 performs parallel operation by the bypass ACB (Air Circuit Breaker). Control to perform (S110).

그리고, 모니터링한 최대수요전력치(피크치)의 증가가 멈추는지 여부를 판단한다(S120).Then, it is determined whether the increase in the monitored maximum demand power value (peak value) is stopped (S120).

제S120단계의 판단결과, 최대수요전력치(피크치)의 증가가 멈춘 경우, 종합자동제어기(100)가 ATS를 발전소측으로 전환함과 동시에 ACB를 차단시킨 후, 비상발전기(200)를 정지시켜서 비상부하에 무정전으로 전력을 공급하도록 제어한다(S130).
As a result of the determination of step S120, when the increase in the maximum demand power value (peak value) stops, the integrated automatic controller 100 switches the ATS to the power plant side and simultaneously cuts off the ACB, thereby stopping the emergency generator 200 and making an emergency. Control to supply power uninterrupted to the load (S130).

이하, 도 4를 참조하여 본 발명에 따른 계통연계형 최대수요전력 초과 방지 발전 시스템을 이용한 비상발전기 운전 방법의 제S70단계 이후과정에 대해 살피면 아래와 같다.Hereinafter, referring to FIG. 4, the following steps of step S70 of the emergency generator operating method using the grid-connected maximum demand power prevention system according to the present invention are as follows.

제S70단계 이후, 종합자동제어기(100)가 발전소로부터의 수전이 비정상적으로 중단되는지 여부를 판단한다(S140).After step S70, the integrated automatic controller 100 determines whether the power supply from the power plant is abnormally stopped (S140).

제S140단계의 판단결과, 발전소로부터의 수전이 비정상적으로 중단되는 경우, 종합자동제어기(100)가 비상발전기(200)를 자동으로 가동시켜 비상부하에 전력을 공급하도록 제어한다(S150).As a result of the determination in step S140, when the faucet from the power plant is abnormally interrupted, the integrated automatic controller 100 automatically operates the emergency generator 200 to control power to supply the emergency load (S150).

이어서, 종합자동제어기(100)가 발전소로부터의 전력공급이 복전되는지 여부를 판단한다(S160).Subsequently, the integrated automatic controller 100 determines whether the power supply from the power plant is restored (S160).

제S160단계의 판단결과, 발전소로부터의 전력공급이 복전되는 경우, 종합자동제어기(100)가 바이패스 ACB를 ON상태로 전환하여 병렬운전 상태를 만든 다음, ATS를 발전소측으로 전환한 후 바이패스 ACB를 차단하고, 비상발전기(200) 작동을 정지시킨다(S170).As a result of the determination in step S160, when the power supply from the power plant is restored, the integrated automatic controller 100 switches the bypass ACB to the ON state to create a parallel operation state, and then switches the ATS to the power plant side and then bypasses the ACB. Shut off and stop the emergency generator 200 (S170).

이상으로 본 발명의 기술적 사상을 예시하기 위한 바람직한 실시예와 관련하여 설명하고 도시하였지만, 본 발명은 이와 같이 도시되고 설명된 그대로의 구성 및 작용에만 국한되는 것이 아니며, 기술적 사상의 범주를 일탈함이 없이 본 발명에 대해 다수의 변경 및 수정이 가능함을 당업자들은 잘 이해할 수 있을 것이다. 따라서 그러한 모든 적절한 변경 및 수정과 균등 물들도 본 발명의 범위에 속하는 것으로 간주되어야 할 것이다.While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

S: 계통연계형 최대수요전력 초과 방지 발전 시스템
100: 종합자동제어기 200: 비상발전기S: Grid-connected maximum demand power generation prevention system
100: integrated automatic controller 200: emergency generator

Claims (10)

계통연계형 최대수요전력 초과 방지 발전 시스템에 있어서,
발전소로부터의 수전이 정상적으로 이루어지되, 부하측의 소비전력이 기 설정된 1단계 기준전력을 초과하여 지속적으로 증가하는 경우, 수전용 인입간선에 설치된 계기용 변압기(PT) 및 변류기(CT)의 전기신호를 인가받아 최대수요전력치(피크치)를 연속적으로 모니터링하되,
모니터링 중인 최대수요전력치가 지속적으로 증가하여 기 설정된 목표 피크치를 초과할 것으로 예측되는 경우, 비상발전 가동을 위한 제어신호를 비상발전기(200)로 인가하며, 발전전압이 정격전압에 도달하고, 주파수가 정격에 도달하는 경우, 동기검출 기능을 이용하여 발전소의 전력계통과 비상발전기(200)를 병렬 운전하여 피크치를 낮추(Peak Cut)도록 제어하는 종합자동제어기(100);를 포함하되,
상기 종합자동제어기(100)는,
발전소로부터의 수전이 비정상적으로 중단되는 경우, 상기 비상발전기(200)와 연결된 ATS(Auto Transfer Switch)를 경유하여 무정전으로 비상부하에 비상전력을 공급하고,
비상부하에 비상전력 공급 중에 발전소로부터의 전력공급이 복전되는 경우, 바이패스 ACB(Air Circuit Breaker)에 의해 상기 비상발전기(200)가 병렬운전을 수행하도록 제어하되,
모니터링한 최대수요전력치(피크치)의 증가가 멈추는 경우, ATS를 발전소측으로 전환함과 동시에 ACB를 차단시킨 후, 상기 비상발전기(200)를 정지시켜서 비상부하에 무정전으로 전력을 공급하도록 제어하는 것을 특징으로 하는 계통연계형 최대수요전력 초과 방지 발전 시스템.In the grid-connected maximum demand power protection system,
When the power reception from the power plant is normal, but the power consumption on the load side continuously increases beyond the preset first-stage reference power, the electrical signals of the instrument transformer (PT) and the current transformer (CT) installed on the incoming lead line The maximum demand power value (peak value) is continuously monitored when
When it is predicted that the maximum demand power value being monitored is continuously increasing to exceed the preset target peak value, a control signal for emergency power generation is applied to the emergency generator 200, and the generation voltage reaches the rated voltage, and the frequency is increased. When the rating is reached, the integrated automatic controller 100 for controlling the peak cut by operating the power system of the power plant and the emergency generator 200 in parallel by using a synchronous detection function;
The integrated automatic controller 100,
When the power supply from the power plant is abnormally interrupted, the emergency power is supplied to the emergency load uninterrupted through the ATS (Auto Transfer Switch) connected to the emergency generator 200,
When the power supply from the power plant is restored during the emergency power supply to the emergency load, the emergency generator 200 is controlled to perform parallel operation by a bypass ACB (Air Circuit Breaker),
When the increase in the monitored maximum demanded power value (peak value) stops, switching the ATS to the power plant side and simultaneously shutting off the ACB, stops the emergency generator 200 to control power supply to the emergency load uninterruptedly. A grid-connected maximum demand power generation prevention system. 제 1 항에 있어서,
상기 종합자동제어기(100)는,
상기 비상발전기(200)와 한전전력계통과 병렬운전시, 한국전력의 분산전원의 연계기술기준에 의거 어떠한 경우에라도 비상발전기가 단독운전을 수행하는 것을 방지하며, 상기 비상발전기(200)에서 발전소와 연결된 계통측으로 전력이 역 송전되는 것을 방지하는 것을 특징으로 하는 계통연계형 최대수요전력 초과 방지 발전 시스템.The method of claim 1,
The integrated automatic controller 100,
In parallel operation with the emergency generator 200 and the KEPCO power system, the emergency generator prevents the emergency generator from performing a single operation in any case based on the linkage technology standard of the distributed power supply of KEPCO. A grid-connected maximum demand power generation prevention system, characterized in that to prevent the reverse transmission of power to the connected grid side. 제 1 항에 있어서,
상기 종합자동제어기(100)는,
모니터링결과 전력수요가 기 설정된 기준전력 미만으로 감소하는 경우, 비상발전 가동을 중단시키는 제어신호를 상기 비상발전기(200)로 인가하여 상기 비상발전기(200)를 정지시키는 것을 특징으로 하는 계통연계형 최대수요전력 초과 방지 발전 시스템.The method of claim 1,
The integrated automatic controller 100,
As a result of the monitoring, when the power demand decreases below the predetermined reference power, the grid-connected maximum characterized in that the emergency generator 200 is stopped by applying a control signal to stop the emergency generator operation to the emergency generator 200. Power generation excess protection power generation system. 제 1 항에 있어서,
상기 종합자동제어기(100)는,
모니터링한 최대수요전력치(피크치)를 기 설정된 전용단말기, 인터넷망에 연결된 컴퓨터 또는 스마트폰으로 전송하여 관리자가 전력계통 상태를 실시간으로 확인하도록 하는 것을 특징으로 하는 계통연계형 최대수요전력 초과 방지 발전 시스템.The method of claim 1,
The integrated automatic controller 100,
The maximum demand power monitoring (peak value) is transmitted to a preset dedicated terminal, a computer connected to the Internet network, or a smart phone to allow the administrator to check the power system status in real time. system. 삭제delete 삭제delete 제 1 항에 있어서,
상기 종합자동제어기(100)는,
발전소로부터 수전하고 비상발전기가 정지하고 있는 상태에서 발전소로부터의 수전이 중단되는 경우, 상기 비상발전기(200)를 자동으로 가동시켜 비상부하에 전력을 공급하도록 제어하되,
발전소로부터의 전력공급이 복전되는 경우, 바이패스 ACB를 ON상태로 전환하여 병렬운전 상태를 만든 다음, ATS를 발전소측으로 전환한 후 바이패스 ACB를 차단하고, 상기 비상발전기(200) 작동을 정지시키는 것을 특징으로 하는 계통연계형 최대수요전력 초과 방지 발전 시스템.The method of claim 1,
The integrated automatic controller 100,
When receiving power from a power plant and receiving power from the power plant is stopped while the emergency generator is stopped, the emergency generator 200 is automatically operated to supply power to the emergency load.
When the power supply from the power plant is restored, the bypass ACB is turned on to create a parallel operation state, then the ATS is switched to the power plant side, the bypass ACB is cut off, and the emergency generator 200 is stopped. The grid-connected maximum demand power generation prevention system. 삭제delete 삭제delete 삭제delete
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101376214B1 (en) * 2013-12-10 2014-03-25 (주) 동보파워텍 Cable-duct attaching type high-voltage switchgear, low-voltage switchgear, motor control center, distribution panel installed uninterrupted power peak-control system and hybrid monitoring-control system
KR20160148393A (en) 2015-06-16 2016-12-26 서영빈 Smart Grid System based on Self Power Generator Synchronization
CN110970991A (en) * 2018-09-30 2020-04-07 上海华为技术有限公司 Energy control method and energy control system
KR102458404B1 (en) * 2021-08-05 2022-10-26 (주)비츠로이에스 Emergency generator system operating in various modes and control method for the same

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JP2006246648A (en) * 2005-03-04 2006-09-14 Toshiba Corp Power supply system cooperation system
KR101223670B1 (en) * 2012-07-27 2013-01-23 (주) 동보파워텍 Switchgear installed power control unit with commercial-emergency power supply control function and method for operating thereof

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JP2006246648A (en) * 2005-03-04 2006-09-14 Toshiba Corp Power supply system cooperation system
KR101223670B1 (en) * 2012-07-27 2013-01-23 (주) 동보파워텍 Switchgear installed power control unit with commercial-emergency power supply control function and method for operating thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101376214B1 (en) * 2013-12-10 2014-03-25 (주) 동보파워텍 Cable-duct attaching type high-voltage switchgear, low-voltage switchgear, motor control center, distribution panel installed uninterrupted power peak-control system and hybrid monitoring-control system
KR20160148393A (en) 2015-06-16 2016-12-26 서영빈 Smart Grid System based on Self Power Generator Synchronization
CN110970991A (en) * 2018-09-30 2020-04-07 上海华为技术有限公司 Energy control method and energy control system
KR102458404B1 (en) * 2021-08-05 2022-10-26 (주)비츠로이에스 Emergency generator system operating in various modes and control method for the same

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