CN204256037U - External overvoltage intelligent monitor system in a kind of 110kV transformer station - Google Patents

External overvoltage intelligent monitor system in a kind of 110kV transformer station Download PDF

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Publication number
CN204256037U
CN204256037U CN201420694037.4U CN201420694037U CN204256037U CN 204256037 U CN204256037 U CN 204256037U CN 201420694037 U CN201420694037 U CN 201420694037U CN 204256037 U CN204256037 U CN 204256037U
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module
overvoltage
data processing
sensor
communication module
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李欣
刘赟
谢耀恒
段建家
赵世华
万勋
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
State Grid Hunan Electric Power Co Ltd
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
State Grid Hunan Electric Power Co Ltd
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Abstract

本实用新型公开了一种110kV变电站内外过电压智能监测系统,包括传感器组、信号调理模块、零序信号采集模块、数据处理模块、数据存储模块、接口模块、过电压预警模块、液晶显示器、鼠标、打印机和通信模块;所述的传感器组、信号调理模块、零序信号采集模块、数据处理模块、数据存储模块依次相接;所述的过电压预警模块、液晶显示器、鼠标、打印机和通信模块均通过接口模块与数据处理模块相接;所述的数据处理模块为PC机、工控机或数字逻辑电路;所述的传感器组包括10kV过电压传感器、35kV过电压传感器和110kV过电压传感器;该110kV变电站内外过电压智能监测系统易于实施,能自动进行故障检测及预警。

The utility model discloses an intelligent monitoring system for overvoltage inside and outside a 110kV substation, comprising a sensor group, a signal conditioning module, a zero-sequence signal acquisition module, a data processing module, a data storage module, an interface module, an overvoltage early warning module, a liquid crystal display, and a mouse , printer and communication module; the sensor group, signal conditioning module, zero-sequence signal acquisition module, data processing module, and data storage module are connected successively; the overvoltage early warning module, liquid crystal display, mouse, printer and communication module All are connected with the data processing module through an interface module; the data processing module is a PC, an industrial computer or a digital logic circuit; the sensor group includes a 10kV overvoltage sensor, a 35kV overvoltage sensor and a 110kV overvoltage sensor; the The 110kV substation internal and external overvoltage intelligent monitoring system is easy to implement, and can automatically perform fault detection and early warning.

Description

一种110kV变电站内外过电压智能监测系统A 110kV substation internal and external overvoltage intelligent monitoring system

技术领域technical field

本实用新型属于电力工程技术领域,涉及一种110kV变电站内外过电压智能监测系统,适用于110kV变电站的外部过电压和内部过电压信号实时监测和故障预警。The utility model belongs to the technical field of electric power engineering, and relates to a 110kV substation internal and external overvoltage intelligent monitoring system, which is suitable for real-time monitoring and fault early warning of external overvoltage and internal overvoltage signals of the 110kV substation.

背景技术Background technique

110kV变电站是向用户供电的枢纽站,110kV变电站的安全运行是保证供电可靠连续的重要前提。造成110kV变电站设备故障的原因较多,电力系统出现的各种外部和内部过电压是造成输变电设备绝缘损害的主要原因之一,严重威胁着电力系统的安全可靠稳定运行。当发生过电压故障时,为了及时查找故障原因,有必要对过电压进行实时监测。The 110kV substation is a hub station that supplies power to users, and the safe operation of the 110kV substation is an important prerequisite for ensuring reliable and continuous power supply. There are many reasons for the failure of 110kV substation equipment. Various external and internal overvoltages in the power system are one of the main reasons for the insulation damage of power transmission and transformation equipment, which seriously threatens the safe, reliable and stable operation of the power system. When an overvoltage fault occurs, in order to find the cause of the fault in time, it is necessary to monitor the overvoltage in real time.

因此,有必要设计一种新型的110kV变电站内外过电压智能监测系统。Therefore, it is necessary to design a new 110kV substation internal and external overvoltage intelligent monitoring system.

实用新型内容Utility model content

本实用新型所要解决的技术问题是提供一种110kV变电站内外过电压智能监测系统,该110kV变电站内外过电压智能监测系统易于实施,能自动进行故障检测及预警。The technical problem to be solved by the utility model is to provide a 110kV substation internal and external overvoltage intelligent monitoring system, the 110kV substation internal and external overvoltage intelligent monitoring system is easy to implement and can automatically perform fault detection and early warning.

实用新型的技术解决方案如下:The technical solution of the utility model is as follows:

一种110kV变电站内外过电压智能监测系统,包括传感器组、信号调理模块、零序信号采集模块、数据处理模块、数据存储模块、接口模块、过电压预警模块、液晶显示器、鼠标、打印机和通信模块;A 110kV substation internal and external overvoltage intelligent monitoring system, including a sensor group, a signal conditioning module, a zero-sequence signal acquisition module, a data processing module, a data storage module, an interface module, an overvoltage warning module, a liquid crystal display, a mouse, a printer and a communication module ;

所述的传感器组、信号调理模块、零序信号采集模块、数据处理模块、数据存储模块依次相接;所述的过电压预警模块、液晶显示器、鼠标、打印机和通信模块均通过接口模块与数据处理模块相接;The sensor group, the signal conditioning module, the zero-sequence signal acquisition module, the data processing module and the data storage module are successively connected; the described overvoltage early warning module, liquid crystal display, mouse, printer and communication module are all connected to the data The processing modules are connected;

所述的数据处理模块为PC机、工控机或数字逻辑电路;The data processing module is a PC, an industrial computer or a digital logic circuit;

所述的传感器组包括对应接110V变电站内的10kV系统、35kV系统和110kV系统的10kV过电压传感器、35kV过电压传感器和110kV过电压传感器;The sensor group includes a 10kV overvoltage sensor, a 35kV overvoltage sensor and a 110kV overvoltage sensor corresponding to the 10kV system, the 35kV system and the 110kV system connected to the 110V substation;

所述的信号调理模块包括滤波器、放大器和A\D转换器;Described signal conditioning module comprises filter, amplifier and A\D converter;

所述的零序信号采集模块包括用于将每一路的三相电压相加以获得零序信号的数字加法器。The zero-sequence signal acquisition module includes a digital adder for adding the three-phase voltages of each channel to obtain a zero-sequence signal.

所述的过电压预警模块包括用于报警的指示灯和蜂鸣器。The overvoltage warning module includes an indicator light and a buzzer for warning.

所述的通信模块包括有线网络端口和无线通信模块;无线通信模块包括GPRS、3G或4G通信模块中的至少一种。The communication module includes a wired network port and a wireless communication module; the wireless communication module includes at least one of GPRS, 3G or 4G communication modules.

数据处理模块为数字逻辑电路,可以是通过逻辑门和其他逻辑器件(如编码器等)搭建的逻辑电路,也可以是集成的逻辑电路,如单片机,DSP或ARM处理器等。The data processing module is a digital logic circuit, which can be a logic circuit built by logic gates and other logic devices (such as an encoder, etc.), or an integrated logic circuit, such as a single-chip microcomputer, DSP or ARM processor, etc.

有益效果:Beneficial effect:

本实用新型的110kV变电站内外过电压智能监测系统,能够自动记录和存储110kV变电站内出现的内部和外部过电压,能对过电压信号进行预警,以确保110kV变电站安全运行。The 110kV substation internal and external overvoltage intelligent monitoring system of the utility model can automatically record and store the internal and external overvoltages in the 110kV substation, and can give early warning to the overvoltage signal to ensure the safe operation of the 110kV substation.

本实用新型的优点如下:The utility model has the following advantages:

1)本实用新型专利的过电压传感器响应速度快、波形失真度小,能准确获取三个不同电压等级的操作过电压和雷电过电压;1) The overvoltage sensor of the utility model patent has fast response speed and small waveform distortion, and can accurately obtain operating overvoltage and lightning overvoltage of three different voltage levels;

2)本实用新型专利能对过电压波形进行自动采集、记录和智能预警。2) The utility model patent can automatically collect, record and intelligently warn the overvoltage waveform.

附图说明Description of drawings

图1为本实用新型专利所述110kV变电站内外过电压智能监测系统的总体结构框图。Figure 1 is a block diagram of the overall structure of the 110kV substation internal and external overvoltage intelligent monitoring system described in the utility model patent.

具体实施方式Detailed ways

以下将结合附图和具体实施例对本实用新型做进一步详细说明:The utility model will be described in further detail below in conjunction with accompanying drawing and specific embodiment:

实施例1:Example 1:

参见图1,一种110kV变电站内外过电压智能监测系统,包括传感器组、信号调理模块、零序信号采集模块、数据处理模块、数据存储模块、接口模块、过电压预警模块、液晶显示器、鼠标、打印机和通信模块;Referring to Figure 1, a 110kV substation internal and external overvoltage intelligent monitoring system, including a sensor group, a signal conditioning module, a zero-sequence signal acquisition module, a data processing module, a data storage module, an interface module, an overvoltage warning module, a liquid crystal display, a mouse, printer and communication module;

所述的传感器组、信号调理模块、零序信号采集模块、数据处理模块、数据存储模块依次相接;所述的过电压预警模块、液晶显示器、鼠标、打印机和通信模块均通过接口模块与数据处理模块相接;The sensor group, the signal conditioning module, the zero-sequence signal acquisition module, the data processing module, and the data storage module are connected successively; The processing modules are connected;

所述的数据处理模块为PC机、工控机或数字逻辑电路;The data processing module is a PC, an industrial computer or a digital logic circuit;

所述的传感器组包括对应接110V变电站内的10kV系统、35kV系统和110kV系统的10kV过电压传感器、35kV过电压传感器和110kV过电压传感器;The sensor group includes a 10kV overvoltage sensor, a 35kV overvoltage sensor and a 110kV overvoltage sensor corresponding to the 10kV system, the 35kV system and the 110kV system connected to the 110V substation;

所述的信号调理模块包括滤波器、放大器和A\D转换器;Described signal conditioning module comprises filter, amplifier and A\D converter;

所述的零序信号采集模块包括用于将每一路的三相电压相加以获得零序信号的数字加法器。The zero-sequence signal acquisition module includes a digital adder for adding the three-phase voltages of each channel to obtain a zero-sequence signal.

所述的过电压预警模块包括用于报警的指示灯和蜂鸣器。The overvoltage early warning module includes an indicator light and a buzzer for warning.

所述的通信模块包括有线网络端口和无线通信模块;无线通信模块包括GPRS、3G或4G通信模块中的至少一种。The communication module includes a wired network port and a wireless communication module; the wireless communication module includes at least one of GPRS, 3G or 4G communication modules.

数据处理模块为数字逻辑电路,可以是通过逻辑门和其他逻辑器件(如编码器等)搭建的逻辑电路,也可以是集成的逻辑电路,如单片机,DSP或ARM处理器等。The data processing module is a digital logic circuit, which can be a logic circuit built by logic gates and other logic devices (such as an encoder, etc.), or an integrated logic circuit, such as a single-chip microcomputer, DSP or ARM processor, etc.

工作过程说明:传感器组采集过电压信号;过电压信号经过信号调理模块的放大、滤波以及A/D转换出来后得到数字信号。数值信号经过零序信号采集模块的加法器的处理,得到零序信号并输出到数据处理模块进行处理,在数据处理模块中,当零序信号的幅值达到预设的阈值后,则给出报警(预警),液晶显示器显示相关的波形和报警信息,鼠标用于控制数据处理模块的工作,打印机用于打印相关数据,通信模块用于将采集的数据以及预警信息发送到远程数据中心,数据存储模块用于存储采集的数据和预警信息。Description of the working process: the sensor group collects the overvoltage signal; the overvoltage signal is amplified, filtered and A/D converted by the signal conditioning module to obtain a digital signal. The numerical signal is processed by the adder of the zero-sequence signal acquisition module, and the zero-sequence signal is obtained and output to the data processing module for processing. In the data processing module, when the amplitude of the zero-sequence signal reaches the preset threshold, it is given Alarm (early warning), the liquid crystal display displays relevant waveforms and alarm information, the mouse is used to control the work of the data processing module, the printer is used to print relevant data, the communication module is used to send the collected data and early warning information to the remote data center, the data The storage module is used to store the collected data and early warning information.

Claims (3)

1. external overvoltage intelligent monitor system in a 110kV transformer station, it is characterized in that, comprise sensor group, Signal-regulated kinase, zero sequence signal acquisition module, data processing module, data memory module, interface module, superpotential warning module, liquid crystal display, mouse, printer and communication module;
Described sensor group, Signal-regulated kinase, zero sequence signal acquisition module, data processing module, data memory module connect successively; Described superpotential warning module, liquid crystal display, mouse, printer and communication module are all connected with data processing module by interface module;
Described data processing module is PC, industrial computer or DLC (digital logic circuit);
Described sensor group comprises correspondence and connects the 10kV overvoltage sensor of 10kV system, 35kV system and 110kV system in 110V transformer station, 35kV overvoltage sensor and 110kV overvoltage sensor;
Described Signal-regulated kinase comprise wave filter, amplifier and A D converter;
Described zero sequence signal acquisition module comprises for being added the three-phase voltage on each road with the digital adder obtaining zero sequence signal.
2. external overvoltage intelligent monitor system in 110kV transformer station according to claim 1, is characterized in that, described superpotential warning module comprises pilot lamp for reporting to the police and hummer.
3. external overvoltage intelligent monitor system in 110kV transformer station according to claim 2, it is characterized in that, described communication module comprises wired network port and wireless communication module; Wireless communication module comprises at least one in GPRS, 3G or 4G communication module.
CN201420694037.4U 2014-11-18 2014-11-18 External overvoltage intelligent monitor system in a kind of 110kV transformer station Expired - Lifetime CN204256037U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104950164A (en) * 2015-05-25 2015-09-30 广东电网有限责任公司中山供电局 Lightning overvoltage monitoring system for substation secondary system
CN106230621A (en) * 2016-07-22 2016-12-14 安徽亚辉电气自动化有限公司 A kind of monitoring analysis system based on overvoltage protection device
CN111030046A (en) * 2019-12-18 2020-04-17 中石大蓝天(青岛)石油技术有限公司 A Multi-source Mutual Feed Wide Input DC Overvoltage Protector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104950164A (en) * 2015-05-25 2015-09-30 广东电网有限责任公司中山供电局 Lightning overvoltage monitoring system for substation secondary system
CN106230621A (en) * 2016-07-22 2016-12-14 安徽亚辉电气自动化有限公司 A kind of monitoring analysis system based on overvoltage protection device
CN111030046A (en) * 2019-12-18 2020-04-17 中石大蓝天(青岛)石油技术有限公司 A Multi-source Mutual Feed Wide Input DC Overvoltage Protector

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