KR20190063888A - System for auto-diagnosing deterioration of distribution board of ESS - Google Patents

System for auto-diagnosing deterioration of distribution board of ESS Download PDF

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KR20190063888A
KR20190063888A KR1020170163003A KR20170163003A KR20190063888A KR 20190063888 A KR20190063888 A KR 20190063888A KR 1020170163003 A KR1020170163003 A KR 1020170163003A KR 20170163003 A KR20170163003 A KR 20170163003A KR 20190063888 A KR20190063888 A KR 20190063888A
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South Korea
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ess
battery
distribution board
deterioration
present
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KR1020170163003A
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Korean (ko)
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김대호
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주식회사 대경산전
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/392Determining battery ageing or deterioration, e.g. state of health
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16571Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold

Abstract

The present invention relates to a system for detecting battery deterioration of a DC panel board for an ESS, which comprises: multi-channel switches positioned between an ESS battery and a PCS; and a deterioration detection unit sequentially connecting the multi-channel switches in a state of opening a branch MCCB, comparing and analyzing a voltage with a current of each of the ESS battery to detect the ESS battery having a predetermined value of deviation in voltage or current, and determining and notifying the detected ESS battery as a deteriorated battery.

Description

ESS용 DC 분전반의 배터리 열화 감지 시스템 {System for auto-diagnosing deterioration of distribution board of ESS}[0001] The present invention relates to a battery deterioration detection system for an ESS DC distribution board,

본 발명은 ESS용 DC 분전반의 배터리 열화 감지 시스템에 관한 것으로서, 보다 구체적으로는 DC 분전반에 연결된 ESS 배터리의 열화를 보다 간단하게 감지 및 통보할 수 있도록 하는 ESS용 DC 분전반의 배터리 열화 감지 시스템에 관한 것이다.The present invention relates to a battery deterioration detection system for a DC distribution board for ESS, and more particularly, to a battery deterioration detection system for a DC distribution board for ESS which can more easily detect and notify deterioration of an ESS battery connected to a DC distribution board will be.

에너지 저장 시스템(ESS, Energy Storage System)은 외부 전력원, 예를 들면, 발전소에서 외부 전력을 공급받아 저장하여, 전력이 필요한 시점에 필요한 곳으로 전송하는 장치를 의미한다. 즉, 에너지 저장 시스템은 전력 저장용 배터리를 포함한 대용량 전력 저장 장치로서, 전력을 저장해 필요한 장소와 시간에 사용할 수 있도록 지원하는 저장 장치이다. 이에 따라 현재에는 신재생 에너지 저장 장치로서 각광받고 있다.An energy storage system (ESS) is an external power source, for example, a device that receives and stores external power from a power plant, and transmits the power to a required place at a required time. That is, the energy storage system is a high-capacity power storage device including a battery for storing electric power, and it is a storage device that can save power and use it at necessary place and time. As a result, it is now regarded as a new and renewable energy storage device.

최근에 들어, DC 분전반을 통해 ESS 배터리를 충전 또는 방전하도록 하는 기술이 제안된 바 있다. 그러나 종래의 ESS용 DC 분전반은 ESS 배터리의 열화를 보다 간단하게 감지 및 통보할 수 없는 단점이 있다. Recently, a technique for charging or discharging an ESS battery through a DC distribution board has been proposed. However, the conventional DC distribution board for ESS has a disadvantage that it can not detect and notify the deterioration of the ESS battery more easily.

(한국공개특허 제10-2015-0077006호, 2015년 07월 07일)(Korean Patent Laid-Open No. 10-2015-0077006, July 07, 2015)

본 발명의 목적은 DC 분전반에 연결된 ESS 배터리의 열화를 보다 간단하게 감지 및 통보할 수 있도록 하는 ESS용 DC 분전반의 배터리 열화 감지 시스템을 제공하는 것이다.It is an object of the present invention to provide a battery deterioration detection system of a DC distribution board for ESS that can more easily detect and notify deterioration of an ESS battery connected to a DC distribution board.

본 발명의 목적은 이상에서 언급한 목적으로 제한되지 않으며, 언급되지 않은 또 다른 목적들은 아래의 기재로부터 본 발명이 속하는 통상의 지식을 가진 자에게 명확히 이해될 수 있을 것이다.The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

위와 같은 목적을 달성하기 위하여, 본 발명의 실시예에 따른 ESS용 DC 분전반의 내진 제어 시스템은 ESS 배터리로부터 직류전원을 공급하는 전원케이블이 연결되어 내부에 소정공간이 형성된 함체에 구비되어 충방전을 모니터링하는 모니터링 제어부; 상기 함체에 장착되어 지진발생시 상기 함체에 발생하는 진동을 진동모듈; 상기 함체에 구비되는 스위치의 화재의 발생여부를 검출하는 초음파센서; 상기 진동모듈 센서의 진동검출 값의 기준에 따라 지진발생여부를 판단하여 전력을 차단하는 전력차단제어부;를 포함하며, 상기 전력차단제어부는 함체에 구비되는 도어의 문을 개폐할 때 발생하는 진동량의 범위를 갖고 있으며, 상기 진동모듈을 통해 센싱한 값이 상기 도어의 문을 개폐할 때의 진동량 범위일 경우에는 전력을 차단하지 않도록 하고, 상기 초음파센서를 통해 화재발생에 따른 초음파가 검출된 것으로 판단되면 전력을 차단하고, 상기 함체의 하단에는 지진 발생시 DC 분전반에 전달되는 지진하중을 소산시키는 내진장치를 구비한다.In order to achieve the above object, an earthquake-proof control system for a DC distribution board for an ESS according to an embodiment of the present invention includes a power supply cable for supplying a DC power from an ESS battery, A monitoring control unit for monitoring; A vibration module mounted on the housing to generate vibration generated in the housing when an earthquake occurs; An ultrasonic sensor for detecting the occurrence of a fire in a switch provided in the housing; And a power shut-off control unit for determining whether or not an earthquake has occurred according to a criterion of the vibration detection value of the vibration module sensor, and for interrupting power, wherein the power shut-off control unit detects a vibration amount generated when the door of the door, And when the value sensed by the vibration module is within the range of the vibration amount when the door of the door is opened and closed, power is not cut off, and ultrasound due to fire generation is detected through the ultrasonic sensor And the earthquake-proof device for dissipating the earthquake load transmitted to the DC distribution panel when an earthquake occurs is provided at the lower end of the enclosure.

본 발명에 의한 ESS용 DC 분전반의 내진 제어 시스템은 DC 분전반에 연결된 ESS 배터리의 열화를 보다 간단하게 감지 및 통보할 수 있도록 한다. The seismic control system of the DC distribution board for ESS according to the present invention makes it possible to more easily detect and notify deterioration of the ESS battery connected to the DC distribution board.

본 발명의 효과는 이상에서 언급한 효과로 제한되지 않으며, 언급되지 않은 또 다른 효과들은 아래의 기재로부터 본 발명이 속하는 통상의 지식을 가진 자에게 명확히 이해될 수 있을 것이다.The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

도 1은 본 발명의 실시예에 따른 ESS용 분전반의 도면이다.
도 2는 본 발명의 실시예에 따른 ESS용 DC 분전반에 구비된 열화 감지 장치를 도시한 도면이다.
BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a diagram of a distribution board for an ESS according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a deterioration sensing apparatus included in an ESS DC distribution panel according to an embodiment of the present invention. Referring to FIG.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다. 이때, 첨부된 도면에서 동일한 구성 요소는 가능한 동일한 부호로 나타내고 있음에 유의한다. 또한, 본 발명의 요지를 흐리게 할 수 있는 공지 기능 및 구성에 대한 상세한 설명은 생략할 것이다. 마찬가지 이유로 첨부 도면에 있어서 일부 구성요소는 과장되거나 생략되거나 개략적으로 도시되었다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.

또한, 명세서 전체에서, 어떤 부분이 어떤 구성요소를 “포함”한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있는 것을 의미한다. 또한, 명세서 전체에서, “~상에”라 함은 대상 부분의 위 또는 아래에 위치함을 의미하는 것이며, 반드시 중력 방향을 기준으로 상측에 위치하는 것을 의미하는 것은 아니다.Also, throughout the specification, when an element is referred to as " including " an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise. Also, throughout the specification, the term " on " means located above or below a target portion, and does not necessarily mean that the target portion is located on the upper side with respect to the gravitational direction.

도 1 및 도 2는 본 발명의 실시예에 따른 ESS용 DC 분전반의 배터리 열화 감지 시스템을 설명하기 위한 도면이다. FIG. 1 and FIG. 2 are views for explaining a battery deterioration detection system of a DC distribution board for ESS according to an embodiment of the present invention.

도 1을 참조하여 설명하면, 본 발명의 실시예에 따른 ESS용 DC 분전반은 디지털 분전반 계측 제어기는 배전반으로부터 RSTN전압을 받아들여 배선차단기능을 수행하는 메인MCCB(31)와, 상기 메인MCCB에 접속된 RSTN 부스바 상에 설치되어 각상 전류를 검출하는 일체형CT(32) 및 각상 부스바의 온도를 검출하는 온도센서(33~36)와, 상기 RSTN 부스바를 통해 유입되는 입력전력을 각각의 피더(#1~#10)측에 공급하는 ZCT내장 MCCB(20-1~20-10)와, 입력 부스바 측으로부터는 전압을 입력받고 상기 일체형CT(32)로부터는 각 상 전류를 입력받고 온도센서(33~36)로부터는 각상 부스바의 온도검출신호를 입력받고 각각의 MCCB(20-1~20-10)로부터는 내장 ZCT로부터 영상전류를 입력받아 연산 처리하여 분전반 소비전력량과 부스바 온도와 누설전류를 산출하여 디스플레이(12)상에 표시하고 각 부스바의 온도와 각 MCCB의 누설전류가 설정치를 초과하면 알람(13)의 작동을 제어하고 트립신호를 생성 출력하는 콘트롤러(10)로 이루어져 있다.1, a DC distribution board for ESS according to an embodiment of the present invention includes a main MCCB 31 for receiving a RSTN voltage from a distribution board and performing a wiring cutoff function, (32) for detecting a current of each phase and temperature sensors (33 to 36) for detecting the temperature of each bus bar, an input power supplied through the RSTN bus bar is supplied to each feeder ZCT built-in MCCBs 20-1 to 20-10 for supplying voltage to the input bus bar side and a phase sensor for receiving the phase currents from the integral type CT 32, 33 to 36 receives the temperature detection signals of the respective booth bars and receives the image currents from the built-in ZCTs from the respective MCCBs 20-1 to 20-10 and performs arithmetic processing to calculate the panel panel power consumption, the bus bar temperature, The current is calculated and displayed on the display 12, When the temperature of the bar and the leakage current of each MCCB exceeds the value set consists of a controller 10 for outputting control the operation of the alarm 13 to generate a trip signal.

또한, 본 발명의 ESS용 DC 분전반은 ESS 배터리의 열화를 감지할 수 있도록 하는 열화 감지 장치(40)를 더 포함할 수 있다. In addition, the DC distribution board for ESS of the present invention may further include a deterioration sensing device (40) for sensing deterioration of the ESS battery.

도 2에 도시된 바와 같이, 열화 감지 장치(40)는 ESS 배터리와 PCS 사이에 위치되는 다수 채널의 스위치(SW1~SS3), 열화 감지부(41)를 구비하며, 이들을 통해 분기 MCCB를 오픈시킨 상태에서 ESS 배터리 각각의 전압 및 전류를 비교 분석하여 열화 상태의 ESS 배터리를 감지 및 통보하도록 한다. 2, the deterioration detection device 40 includes switches SW1 to SS3 and a deterioration detection unit 41, which are located between the ESS battery and the PCS, and open the branch MCCB through them. , The voltage and current of each of the ESS batteries are compared and analyzed to detect and notify the degraded ESS battery.

즉, 다수 채널의 스위치(SW1~SS3)를 순차적으로 개방하면, ESS 배터리 각각의 전압 및 전류를 감지하고, 감지된 전압 및 전류를 비교 분석한 후, 전압 또는 전류간 편차가 기 설정값인 ESS 배터리를 검출하도록 한다. 그리고 검출된 ESS 배터리를 열화된 배터리로 판단 및 통보하도록 한다. That is, when the switches SW1 to SS3 of the plurality of channels are sequentially opened, the voltages and currents of the ESS batteries are sensed, and the sensed voltages and currents are compared and analyzed. Then, Thereby detecting the battery. Then, the detected ESS battery is judged and notified as a deteriorated battery.

한편, 본 명세서와 도면에 개시된 본 발명의 실시예들은 본 발명이 기술 내용을 쉽게 설명하고 본 발명의 이해를 돕기 위해 특정 예를 제시한 것일 뿐이며, 본 발명의 범위를 한정하고자 하는 것은 아니다. 여기에 개시된 실시예들 이외에도 본 발명의 기술적 사상에 바탕을 둔 다른 변형예들이 실시 가능하다는 것은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 자명한 것이다.It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate description of the present invention and to facilitate understanding of the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

Claims (1)

ESS용 DC 분전반의 열화 감지 시스템에 있어서,
ESS 배터리와 PCS 사이에 위치되는 다수 채널의 스위치; 및
분기 MCCB를 오픈시킨 상태에서, 상기 다수의 채널의 스위치를 순차적으로 연결하여 ESS 배터리 각각의 전압 및 전류를 비교 분석하여 전압 또는 전류간 편차가 기 설정값인 ESS 배터리를 검출하고, 상기 검출된 ESS 배터리를 열화된 배터리로 판단 및 통보하는 열화 감지부를 포함하는 ESS용 DC 분전반의 열화 감지 시스템.
In a deterioration detection system of a DC distribution board for ESS,
A multi-channel switch located between the ESS battery and the PCS; And
The ESS battery in which the deviation between the voltage and the current is a predetermined value is detected by comparing the voltage and the current of each of the ESS batteries by sequentially connecting the switches of the plurality of channels while the branch MCCB is opened, And a deterioration sensing unit for sensing and notifying the battery of the deteriorated battery.
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Cited By (3)

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Publication number Priority date Publication date Assignee Title
KR102059963B1 (en) 2019-08-30 2019-12-27 주식회사 대경산전 Distribution board having function of quarterly energy usage and deterioration monitoring
KR102128741B1 (en) * 2019-11-21 2020-07-08 주식회사 대경산전 Energy storage device with multi-branch sensitivity adjustment
KR20210150715A (en) * 2020-06-04 2021-12-13 전북대학교산학협력단 Energy storage device with fine deterioration monitoring function

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KR102059963B1 (en) 2019-08-30 2019-12-27 주식회사 대경산전 Distribution board having function of quarterly energy usage and deterioration monitoring
KR102128741B1 (en) * 2019-11-21 2020-07-08 주식회사 대경산전 Energy storage device with multi-branch sensitivity adjustment
KR20210150715A (en) * 2020-06-04 2021-12-13 전북대학교산학협력단 Energy storage device with fine deterioration monitoring function

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