WO2016029632A1 - 变电站故障跳闸声光报警装置 - Google Patents

变电站故障跳闸声光报警装置 Download PDF

Info

Publication number
WO2016029632A1
WO2016029632A1 PCT/CN2015/070987 CN2015070987W WO2016029632A1 WO 2016029632 A1 WO2016029632 A1 WO 2016029632A1 CN 2015070987 W CN2015070987 W CN 2015070987W WO 2016029632 A1 WO2016029632 A1 WO 2016029632A1
Authority
WO
WIPO (PCT)
Prior art keywords
module
alarm
circuit module
light alarm
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/070987
Other languages
English (en)
French (fr)
Inventor
田涛
陈昊
徐晶冉
黄翔
张锐
徐雯
韩笑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Jiangsu Electric Power Co Ltd
Maintenance Branch of State Grid Jiangsu Electric Power Co Ltd
State Grid Corp of China SGCC
Original Assignee
State Grid Jiangsu Electric Power Co Ltd
Maintenance Branch of State Grid Jiangsu Electric Power Co Ltd
State Grid Corp of China SGCC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Jiangsu Electric Power Co Ltd, Maintenance Branch of State Grid Jiangsu Electric Power Co Ltd, State Grid Corp of China SGCC filed Critical State Grid Jiangsu Electric Power Co Ltd
Publication of WO2016029632A1 publication Critical patent/WO2016029632A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network

Definitions

  • the invention relates to a substation fault trip sound and light alarm device, belonging to the technical field of high voltage power grid operation fault alarm.
  • Substation is an important part of power transmission and distribution, and it is an important task to receive and distribute electrical energy. At the same time, there are many equipments in the substation, and various faults often occur. When someone operates the equipment, if it fails, if it cannot stop and diagnose and recover in an accurate and timely manner, it will cause equipment damage or personal injury, and even cause other cascading failures to cause large-scale power outage, which seriously affects the normal operation of the power system.
  • the object of the present invention is to provide an audible and visual reminding device, which can promptly and effectively issue prompt information only by accessing the DC power source in the substation and the nearby fault signal.
  • Substation fault trip sound and light alarm device comprising a power module, a control circuit module, a signal acquisition module, an LED display module, an alarm module and a heat dissipation module, wherein the control circuit module and the signal acquisition module, the LED display module, the alarm module and The heat dissipation module is connected, and the power module provides working power of all the modules, wherein the control circuit module comprises an RS232 communication device, a human interface device, a fan heat dissipation control device, and a main control device connected to all the devices;
  • the signal acquisition module is provided with a signal receiving end, a current limiting resistor and a photocoupler connected in sequence; the photocoupler is connected to the main control device; and the human interface device is connected to the operating device of the substation.
  • the foregoing substation fault trip sound and light alarm device is characterized in that the power module comprises a PWM generating circuit module, a transformer circuit module, a filter circuit module and a voltage stabilizing circuit module.
  • the aforementioned substation fault trip sound and light alarm device is characterized in that the PWM generating circuit module adopts a current control type pulse width modulation chip UC3842.
  • the aforementioned substation fault trip sound and light alarm device is characterized in that the current limiting resistor is set to 30 K ⁇ , and the type of the photocoupler is PC817.
  • the aforesaid substation fault trip sound and light alarm device is characterized in that a capacitor is arranged between the current limiting resistor and the photocoupler.
  • the aforesaid substation fault trip sound and light alarm device is characterized in that the capacitor takes 0.01 ⁇ F and the current limiting resistor takes 10 k ⁇ to form a step low pass filter.
  • the beneficial effects achieved by the invention are that the trip signal flows through the photocoupler through the current limiting resistor, so that the conduction potential of the triode of the photocoupler changes, the change of the signal is collected by the main control device, and the “fault trip” is displayed by the LED display module.
  • the wording is triggered by the alarm module to alert the staff, so that the worker can reset the device and suspend the alarm through the human interface device. Even if the working position of the overhaul is far from the main control room, the on-site staff can effectively get the alarm signal and promptly and effectively send out the prompt information, which improves the work efficiency of the staff.
  • Figure 1 is a schematic block diagram showing the structure of the present invention
  • FIG. 2 is a structural block diagram of a control circuit module
  • Figure 3 is a partial circuit schematic diagram of Figure 1;
  • FIG. 4 is a circuit diagram of a signal power module of the present invention.
  • the working position for the maintenance is far from the main control room, and the on-site staff can not effectively obtain the corresponding sound prompt information, and the substation fault trip sound and light alarm device as shown in Fig. 1 is designed. It includes a power module, a control circuit module, a signal acquisition module, an LED display module, an alarm module, and a heat dissipation module.
  • the power module provides the operating power for all modules.
  • the control circuit module is respectively connected to the signal acquisition module, the LED display module, the alarm module and the heat dissipation module.
  • the “fault trip” prompt will be displayed in the LED display module, and the alarm module will be turned on to alarm. This enables the remote staff to find faults in a timely manner, solve problems in time, and improve work efficiency.
  • the internal structure of the control circuit module is shown in Figure 2, including RS232 communication device, human-machine interface device, fan heat-dissipation control device and main control device.
  • the main control device is respectively connected with the RS232 communication device, the human interface device, the fan heat dissipation control device, and the signal acquisition module.
  • the human-machine interface device is connected to the operating device of the substation to facilitate remote control of the worker.
  • the signal acquisition module obtains the trip signal through the DC220V active switch node or the Ethernet interface.
  • the active switch node is converted into a 5V weak electric signal for reading by two 470k ⁇ parallel and photoelectric isolation, and the Ethernet communication resolves the trip signal through the parsing device.
  • the signal acquisition module is provided with a signal receiving end, a current limiting resistor, a capacitor and a photocoupler connected in sequence, as shown in FIG.
  • the photocoupler is connected to the main control device.
  • the trip signal After the trip signal is received by the signal receiving end, it flows through the photocoupler after passing through the current limiting resistor, so that the conduction potential of the triode of the photocoupler changes, and the main control device collects the change of the signal, and displays the "fault trip" through the LED display module.
  • the alarm module is triggered by the alarm module to remind the staff that the staff can reset and suspend the alarm through the human interface device.
  • the current limiting resistor is set to 30K ⁇ .
  • the model of the optocoupler is PC817, which can realize the electrical isolation between the on-site switching quantity and the control circuit module, and improve the electrical insulation and anti-interference ability.
  • the capacitor takes 0.01 ⁇ F
  • the current limiting resistor takes 10k ⁇ to form a step low-pass filter, which filters out the high-frequency noise of the external switch information and reduces the glitch interference of the signal.
  • the power module includes a PWM generation circuit module, a transformer circuit module, a filter circuit module, and a voltage stabilization circuit module.
  • the PWM generation circuit module uses a current-controlled pulse width modulation chip UC3842.
  • the voltage of the power supply module is divided by R9 (20K ⁇ ) and R10 (3.6K ⁇ ) into the inverting input terminal of the error amplifier, R2 (130K ⁇ ) and C3 (10 ⁇ F).
  • the starting circuit, RT (10K ⁇ ) and CT (0.047 ⁇ F) determine the frequency of power oscillation.
  • R11 (150K ⁇ ) and C11 (100pF) are used to improve the gain and frequency characteristics.
  • the square wave of the output is R5 (27 ⁇ ) and R6 (100 ⁇ ).
  • the DC signal is converted into a square wave
  • the transformer has a coil turns ratio of 400:17 in the transformer circuit module, and the output end is filtered by a 0.1 mH inductor and a capacitance of 100 ⁇ F, and then connected to a 7805 integrated voltage regulator in the voltage regulator circuit module.
  • the chip, the output of the integrated voltage regulator chip is de-harmonized by a 10 ⁇ F capacitor and outputs a stable 5V voltage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

一种变电站故障跳闸声光报警装置，包括电源模块、控制电路模块、信号采集模块、LED显示模块、报警模块和散热模块。信号采集模块设置信号接收端（Uin）、限流电阻（R20）和光电耦合器。跳闸信号经限流电阻流过光电耦合器，使光电耦合器的三极管导通电位变化，主控装置采集到信号的变化，通过LED显示模块显示"故障跳闸"的字样；通过报警模块触发报警器报警，提醒工作人员注意，从而工作人员可以通过人机接口装置对设备进行复位和暂停报警的操作。检修的工作位置即使离主控室较远，现场工作人员也可以有效地得到报警信号，及时、有效地发出了提示信息，提高了工作人员的工作效率。

Description

变电站故障跳闸声光报警装置 技术领域
本发明涉及一种变电站故障跳闸声光报警装置，属于高压电网运行故障报警技术领域。
背景技术
变电站是电力系统输配电的重要环节，承担着接收电能和分配电能的重要任务。同时，变电站内设备众多，各种故障时常发生。当有人操作设备时发生故障，若不能准确、及时地停止工作并加以诊断和恢复，将造成设备损坏或者人身伤害，甚至导致其他连锁故障的发生造成大面积停电，严重影响电力系统的正常运行。
发明内容
为解决现有技术的不足，本发明的目的在于提供一种声光提醒装置，该声光提醒装置只需接入变电站内的直流电源及就近的故障信号，即可及时、有效地发出提示信息
为了实现上述目标，本发明采用如下的技术方案：
变电站故障跳闸声光报警装置，包括电源模块、控制电路模块、信号采集模块、LED显示模块、报警模块和散热模块，所述控制电路模块分别与所述信号采集模块、LED显示模块、报警模块和散热模块相连，所述电源模块提供所有模块的工作电源，其特征是，所述控制电路模块包括RS232通信装置、人机接口装置、风扇散热控制装置和与上述所有装置相连接的主控装置；所述信号采集模块设置有依次连接的信号接收端、限流电阻和光电耦合器；所述光电耦合器与主控装置相连；所述人机接口装置与变电站的操作装置相连接。
前述的变电站故障跳闸声光报警装置，其特征是，所述电源模块包括PWM生成电路模块、变压电路模块、滤波电路模块和稳压电路模块。
前述的变电站故障跳闸声光报警装置，其特征是，所述PWM生成电路模块采用电流控制型脉宽调制芯片UC3842。
前述的变电站故障跳闸声光报警装置，其特征是，所述限流电阻设置为30KΩ，所述光电耦合器的型号为PC817。
前述的变电站故障跳闸声光报警装置，其特征是，所述限流电阻和光电耦合器之间设置有电容。
前述的变电站故障跳闸声光报警装置，其特征是，所述电容取0.01μF、限流电阻取10kΩ构成阶低通滤波器。
本发明所达到的有益效果：跳闸信号经限流电阻流过光电耦合器，使光电耦合器的三极管导通电位变化，主控装置采集到信号的变化，通过LED显示模块显示“故障跳闸”的字样；通过报警模块触发报警器报警，提醒工作人员注意，从而工作人员可以通过人机接口装置对设备进行复位和暂停报警的操作。检修的工作位置即使离主控室较远，现场工作人员也可以有效地得到报警信号，及时、有效地发出了提示信息，提高了工作人员的工作效率。
附图说明
图1是本发明的结构示意框图；
图2为控制电路模块的结构框图；
图3为图1的部分电路原理图；
图4为本发明信号电源模块电路图。
具体实施方式
下面结合附图对本发明作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
针对检修的工作位置离主控室较远，现场工作人员无法有效地得到相应的声响提示信息，设计了如图1所示的变电站故障跳闸声光报警装置， 包括电源模块、控制电路模块、信号采集模块、LED显示模块、报警模块和散热模块。电源模块提供所有模块的工作电源。
控制电路模块分别与信号采集模块、LED显示模块、报警模块和散热模块相连。当跳闸信号传入到控制电路模块中时，会在LED显示模块中显示出“故障跳闸”的提示，同时会打开报警模块进行报警。这就使得远处的工作人员能够及时的发现故障，及时解决问题，提高了工作效率。
控制电路模块内部结构如图2所示，包括RS232通信装置、人机接口装置、风扇散热控制装置和主控装置。主控装置分别与RS232通信装置、人机接口装置、风扇散热控制装置、信号采集模块相连接。人机接口装置与变电站的操作装置相连接，方便工作人员的远程操控。
信号采集模块通过DC220V有源开关节点或者以太网接口获取跳闸信号，有源开关节点经过两个470kΩ并联和光电隔离转变为5V的弱电信号供读取，以太网通信经过解析装置解析出跳闸信号。信号采集模块设置有依次连接的信号接收端、限流电阻、电容和光电耦合器，如图3。光电耦合器与主控装置相连。跳闸信号经信号接收端接受后，经过限流电阻后流过光电耦合器，使光电耦合器的三极管导通电位变化，主控装置采集到信号的变化，通过LED显示模块显示“故障跳闸”的字样，同时通过报警模块触发报警器报警，提醒工作人员注意，工作人员可以通过人机接口装置对设备进行复位和暂停报警的操作。
本装置中，限流电阻设置为30KΩ。光电耦合器的型号为PC817，能够实现现场开关量与控制电路模块间的电气隔离,提高电绝缘和抗干扰能力。另外，电容取0.01μF、限流电阻取10kΩ构成阶低通滤波器，滤除外部开关量信息的高频噪声,减小信号的毛刺干扰。
如图4，电源模块包括PWM生成电路模块、变压电路模块、滤波电路模块和稳压电路模块。PWM生成电路模块采用电流控制型脉宽调制芯片UC3842，电源模块电压经R9(20KΩ)、R10(3.6KΩ)分压加到误差放大器的反相输入端，R2(130KΩ)和C3(10μF)构成起动电路，RT(10KΩ)和CT(0.047μF)决定着电力震荡的频率，R11(150KΩ)和C11(100pF)用于改善增益和频率特性，输出的方波经R5(27Ω)、R6(100Ω)、C8(270pF)分压后驱动MOSFET，电阻R8(0.83Ω)用于电流检测，经R7(1KΩ)、C9(470pF)滤波后反馈，通过PWM脉冲来控制MOSFET的导通与关断，从而把直流信号变成方波，经过变压电路模块中线圈匝数比为400:17的变压器，输出端经过0.1mH的电感和100μF的电容滤波后接稳压电路模块中的7805集成稳压芯片，集成稳压芯片的输出端经10μF的电容消谐后输出稳定的5V电压。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和变形，这些改进和变形也应视为本发明的保护范围。

Claims (6)

  1. 变电站故障跳闸声光报警装置，包括电源模块、控制电路模块、信号采集模块、LED显示模块、报警模块和散热模块，所述控制电路模块分别与所述信号采集模块、LED显示模块、报警模块和散热模块相连，所述电源模块提供所有模块的工作电源，其特征是，所述控制电路模块包括RS232通信装置、人机接口装置、风扇散热控制装置和与上述所有装置相连接的主控装置；所述信号采集模块设置有依次连接的信号接收端、限流电阻和光电耦合器；所述光电耦合器与主控装置相连；所述人机接口装置与变电站的操作装置相连接。
  2. 根据权利要求1所述的变电站故障跳闸声光报警装置，其特征是，所述电源模块包括PWM生成电路模块、变压电路模块、滤波电路模块和稳压电路模块。
  3. 根据权利要求2所述的变电站故障跳闸声光报警装置，其特征是，所述PWM生成电路模块采用电流控制型脉宽调制芯片UC3842。
  4. 根据权利要求1所述的变电站故障跳闸声光报警装置，其特征是，所述限流电阻设置为30KΩ，所述光电耦合器的型号为PC817。
  5. 根据权利要求4所述的变电站故障跳闸声光报警装置，其特征是，所述限流电阻和光电耦合器之间设置有电容。
  6. 根据权利要求5所述的变电站故障跳闸声光报警装置，其特征是，所述电容取0.01μF、限流电阻取10kΩ构成阶低通滤波器。
PCT/CN2015/070987 2014-08-26 2015-01-19 变电站故障跳闸声光报警装置 Ceased WO2016029632A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410424834.5A CN104269921A (zh) 2014-08-26 2014-08-26 变电站故障跳闸声光报警装置
CN201410424834.5 2014-08-26

Publications (1)

Publication Number Publication Date
WO2016029632A1 true WO2016029632A1 (zh) 2016-03-03

Family

ID=52161423

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/070987 Ceased WO2016029632A1 (zh) 2014-08-26 2015-01-19 变电站故障跳闸声光报警装置

Country Status (2)

Country Link
CN (1) CN104269921A (zh)
WO (1) WO2016029632A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108051692A (zh) * 2017-12-03 2018-05-18 国网江西省电力有限公司南昌供电分公司 电气设备外壳接地故障监测定位报警装置
CN112885008A (zh) * 2021-03-17 2021-06-01 北京零零易科技有限公司 一种大功率楼宇声光报警器
CN113870539A (zh) * 2021-11-02 2021-12-31 中车大连机车研究所有限公司 一种内燃机车无人警惕冗余声光报警装置
CN113986690A (zh) * 2021-10-19 2022-01-28 国网安徽省电力有限公司电力科学研究院 一种输变电设施二次保护用智能警报装置及其警报方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104269921A (zh) * 2014-08-26 2015-01-07 国家电网公司 变电站故障跳闸声光报警装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202383796U (zh) * 2011-12-13 2012-08-15 宋德利 矿用智能型防爆开关跳闸报警器
CN202475019U (zh) * 2011-12-29 2012-10-03 森泰集团有限公司 控制与保护开关电器的智能控制器
CN204012945U (zh) * 2014-08-26 2014-12-10 国家电网公司 变电站故障跳闸声光报警装置
CN104269921A (zh) * 2014-08-26 2015-01-07 国家电网公司 变电站故障跳闸声光报警装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2531357Y (zh) * 2002-02-09 2003-01-15 淄博中瑞电气有限公司 无人值班变电站事故综合预警装置
CN201489633U (zh) * 2009-08-13 2010-05-26 福建俊豪电子有限公司 一种用于电气火灾模块的控制主机电路
CN201535935U (zh) * 2009-10-10 2010-07-28 佛山市柏克电力设备有限公司 一种ups语音报警电路
CN202111810U (zh) * 2011-07-20 2012-01-11 浙江大华系统工程有限公司 变电站遥视系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202383796U (zh) * 2011-12-13 2012-08-15 宋德利 矿用智能型防爆开关跳闸报警器
CN202475019U (zh) * 2011-12-29 2012-10-03 森泰集团有限公司 控制与保护开关电器的智能控制器
CN204012945U (zh) * 2014-08-26 2014-12-10 国家电网公司 变电站故障跳闸声光报警装置
CN104269921A (zh) * 2014-08-26 2015-01-07 国家电网公司 变电站故障跳闸声光报警装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108051692A (zh) * 2017-12-03 2018-05-18 国网江西省电力有限公司南昌供电分公司 电气设备外壳接地故障监测定位报警装置
CN112885008A (zh) * 2021-03-17 2021-06-01 北京零零易科技有限公司 一种大功率楼宇声光报警器
CN113986690A (zh) * 2021-10-19 2022-01-28 国网安徽省电力有限公司电力科学研究院 一种输变电设施二次保护用智能警报装置及其警报方法
CN113870539A (zh) * 2021-11-02 2021-12-31 中车大连机车研究所有限公司 一种内燃机车无人警惕冗余声光报警装置

Also Published As

Publication number Publication date
CN104269921A (zh) 2015-01-07

Similar Documents

Publication Publication Date Title
WO2016029632A1 (zh) 变电站故障跳闸声光报警装置
CN107240230A (zh) 一种电力设备故障信号监测装置
CN203062057U (zh) 电焊机输入缺相保护电路
CN203434898U (zh) 一种智能型制动单元
CN204012945U (zh) 变电站故障跳闸声光报警装置
CN203180773U (zh) 一种无源型智能配电装置
CN204481570U (zh) 断路器智能控制器
CN204794108U (zh) 无功补偿监测系统
CN202712966U (zh) 一种新型数字化eps消防应急电源系统
CN218848227U (zh) 一种家庭用电的智能监管装置
CN113422430B (zh) 电力监测管理预警系统
CN202586369U (zh) 一种光伏并网逆变器
CN102904464B (zh) 一种配电网终端无源取电系统
CN204165598U (zh) 具有实时报警功能的燃气智能计量系统
CN202930748U (zh) 一种开关柜
CN201256381Y (zh) 同步脉冲发生装置
CN207557722U (zh) 一种控制板
CN105301343A (zh) 一种三相电源的电力监测系统
CN111211616A (zh) 一种远程智能控制变压器
CN107291205B (zh) 一种高效的计算机电源管理系统
CN205029340U (zh) 一种发电站直流隔离装置
CN204791448U (zh) 一种便携式厂站事故联动告警系统
CN105790237A (zh) 一种供电线路微机继电保护装置
CN203338504U (zh) 低压开关柜火灾报警系统
CN204231207U (zh) 一种逆变焊接电源主回路电路结构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15836781

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15836781

Country of ref document: EP

Kind code of ref document: A1