CN110824262A - An instantaneous magnetic field interference detection system and detection method for power equipment operation - Google Patents
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Abstract
本发明提供了一种电力设备工作瞬时磁场干扰检测系统，所述瞬时磁场干扰检测系统包括信号采集单元、信号调理单元、A/D转换单元、控制处理单元、存储单元、显示单元、按键输入单元、报警单元、通信单元和驱动单元；所述瞬时磁场干扰检测系统智能采集所述电力设备工作瞬时磁场，并进行信息处理和分析，并进行存储、显示，当所述电力设备工作瞬时磁场异常时，及时通过所述报警单元、所述显示单元发出报警，并上传至监控中心。本发明提供一种电力设备工作瞬时磁场干扰检测系统和方法，针对电力设备瞬时磁干扰进行检测，及时发现异常瞬时磁场干扰，防止影响电力设备的正常可靠工作。
The invention provides an instantaneous magnetic field interference detection system for power equipment operation. The instantaneous magnetic field interference detection system includes a signal acquisition unit, a signal conditioning unit, an A/D conversion unit, a control processing unit, a storage unit, a display unit, and a key input unit. , an alarm unit, a communication unit and a drive unit; the instantaneous magnetic field interference detection system intelligently collects the instantaneous magnetic field of the power equipment, performs information processing and analysis, and stores and displays it. When the instantaneous magnetic field of the power equipment is abnormal , and send an alarm through the alarm unit and the display unit in time, and upload it to the monitoring center. The invention provides a system and method for detecting the instantaneous magnetic field interference of power equipment, which can detect the instantaneous magnetic interference of the power equipment, find the abnormal instantaneous magnetic field interference in time, and prevent the normal and reliable operation of the power equipment from being affected.
Description
技术领域technical field
本发明属于电力检测技术领域，特别涉及一种电力设备工作瞬时磁场干扰检测系统及其检测方法。The invention belongs to the technical field of electric power detection, and in particular relates to an instantaneous magnetic field interference detection system and a detection method for the operation of electric power equipment.
背景技术Background technique
随着电力行业的不断发展，电力设备使用越来越多、越来越复杂。而随着电力设备功能性的增强，尤其是自动化设备，其工作更容易受到电磁环境的影响。早在二十世纪六十年代，国外就己开始对电力系统中的电磁干扰和电磁兼容问题进行研究和测量，主要集中于测量和分析电磁脉冲产生的瞬态电磁场。本发明提出一种电力设备工作瞬时磁场干扰检测系统，针对电力设备瞬时磁干扰进行检测，及时发现异常瞬时磁场干扰，防止影响电力设备的正常可靠工作。With the continuous development of the power industry, more and more power equipment is used and more complex. With the enhancement of the functionality of electrical equipment, especially automation equipment, its work is more susceptible to the influence of the electromagnetic environment. As early as the 1960s, foreign countries have begun to study and measure electromagnetic interference and electromagnetic compatibility in power systems, mainly focusing on the measurement and analysis of transient electromagnetic fields generated by electromagnetic pulses. The invention proposes a system for detecting the instantaneous magnetic field interference of power equipment, which detects the instantaneous magnetic field interference of the power equipment, finds the abnormal instantaneous magnetic field interference in time, and prevents the normal and reliable operation of the power equipment from being affected.
发明内容SUMMARY OF THE INVENTION
本发明提供一种电力设备工作瞬时磁场干扰检测系统和方法，针对电力设备瞬时磁干扰进行检测，及时发现异常瞬时磁场干扰，防止影响电力设备的正常可靠工作。The invention provides a system and method for detecting the instantaneous magnetic field interference of power equipment, which can detect the instantaneous magnetic interference of the power equipment, find the abnormal instantaneous magnetic field interference in time, and prevent the normal and reliable operation of the power equipment from being affected.
本发明具体为一种电力设备工作瞬时磁场干扰检测系统，所述瞬时磁场干扰检测系统包括信号采集单元、信号调理单元、A/D转换单元、控制处理单元、存储单元、显示单元、按键输入单元、报警单元、通信单元和驱动单元，所述信号采集单元与所述信号调理单元、所述A/D转换单元、所述控制处理单元、所述驱动单元顺序环形连接，所述控制处理单元还分别于所述存储单元、所述显示单元、所述按键输入单元、所述报警单元、所述通信单元相连接；所述瞬时磁场干扰检测系统智能采集所述电力设备工作瞬时磁场，并进行信息处理和分析，并进行存储、显示，当所述电力设备工作瞬时磁场异常时，及时通过所述报警单元、所述显示单元发出报警，并上传至监控中心。The present invention is specifically an instantaneous magnetic field interference detection system for power equipment operation. The instantaneous magnetic field interference detection system includes a signal acquisition unit, a signal conditioning unit, an A/D conversion unit, a control processing unit, a storage unit, a display unit, and a key input unit. , an alarm unit, a communication unit and a drive unit, the signal acquisition unit is connected to the signal conditioning unit, the A/D conversion unit, the control processing unit, and the drive unit in sequence, and the control processing unit also The storage unit, the display unit, the key input unit, the alarm unit, and the communication unit are respectively connected; the instantaneous magnetic field interference detection system intelligently collects the instantaneous magnetic field of the power equipment, and conducts information Processing and analysis, and storage and display, when the instantaneous magnetic field of the power equipment is abnormal, an alarm is issued through the alarm unit and the display unit in time, and uploaded to the monitoring center.
所述信号采集单元采用三个相同的电磁传感器采集所述电力设备工作瞬时磁场信号，所述电磁传感器相互正交放置，输出三路差分信号，能够采集三维磁场信号；所述信号采集单元接收所述驱动单元的驱动信息智能采集所述磁场信号，并通过屏蔽电缆将所述磁场信号传输至所述信号调理单元。The signal acquisition unit uses three identical electromagnetic sensors to collect the instantaneous magnetic field signals of the power equipment, the electromagnetic sensors are placed orthogonally to each other, output three-way differential signals, and can collect three-dimensional magnetic field signals; the signal acquisition unit receives the The driving information of the driving unit intelligently collects the magnetic field signal, and transmits the magnetic field signal to the signal conditioning unit through a shielded cable.
所述信号调理单元包括放大模块、滤波模块，所述放大模块采用全差分仪表放大器对所述磁场信号进行放大处理，输出符合所述A/D转换单元输入要求的信号；所述滤波模块采用低通滤波器滤除干扰信号，提高所述瞬时磁场干扰检测系统的准确性。The signal conditioning unit includes an amplification module and a filter module, the amplification module uses a fully differential instrumentation amplifier to amplify the magnetic field signal, and outputs a signal that meets the input requirements of the A/D conversion unit; the filter module uses low The interference signal is filtered out through the filter, and the accuracy of the instantaneous magnetic field interference detection system is improved.
所述A/D转换单元采用AD9266芯片对输入的信号进行A/D转换，所述AD9266芯片拥有一个SPI接口，所述SPI接口与所述控制处理单元的功能引脚连接，通过所述控制处理单元控制所述AD9266芯片的配置；所述AD9266芯片的DCO数据输出时钟控制所述控制处理单元同步读取所述A/D转换单元输出的数字信号。The A/D conversion unit uses the AD9266 chip to perform A/D conversion on the input signal. The AD9266 chip has an SPI interface, and the SPI interface is connected to the functional pins of the control processing unit. The unit controls the configuration of the AD9266 chip; the DCO data output clock of the AD9266 chip controls the control processing unit to synchronously read the digital signal output by the A/D conversion unit.
所述按键输入单元结合所述存储单元、所述显示单元进行参数设置和信息查询，所述参数包括采样率、磁场报警值；所述显示单元采用LCD显示屏。The key input unit is combined with the storage unit and the display unit to perform parameter setting and information query, and the parameters include a sampling rate and a magnetic field alarm value; the display unit adopts an LCD display screen.
所述报警单元采用声光报警器对所述瞬时磁场干扰检测系故障情况进行报警，结合所述显示单元进行报警显示。The alarm unit uses an acousto-optic alarm to alarm the fault condition of the instantaneous magnetic field interference detection system, and performs alarm display in combination with the display unit.
所述通信单元采用RS485通信电路，具有很好的抗干扰性，能够将所述瞬时磁场干扰检测系统的检测结果和报警信号上传至所述监控中心；所述瞬时磁场干扰检测系统还能够通过所述通信单元接收所述监控中心的控制信号。The communication unit adopts RS485 communication circuit, which has good anti-interference, and can upload the detection results and alarm signals of the instantaneous magnetic field interference detection system to the monitoring center; the instantaneous magnetic field interference detection system can also pass all The communication unit receives the control signal of the monitoring center.
本发明还提供一种电力设备工作瞬时磁场干扰检测系统的检测方法，所述检测方法包括如下步骤：The present invention also provides a detection method for the instantaneous magnetic field interference detection system of power equipment operation, and the detection method includes the following steps:
步骤(1)：所述控制处理单元向所述驱动单元发出控制指令；Step (1): the control processing unit sends a control instruction to the drive unit;
步骤(2)：所述驱动单元驱动所述电磁传感器采集所述电力设备工作瞬时磁场信号；Step (2): the driving unit drives the electromagnetic sensor to collect the instantaneous magnetic field signal of the power equipment;
步骤(3)：经过所述放大模块进行信号放大；Step (3): amplify the signal through the amplifying module;
步骤(4)：经过所述滤波模块滤除干扰信号；Step (4): filter out the interference signal through the filtering module;
步骤(5)：经过所述A/D转换单元进行A/D转换；Step (5): carry out A/D conversion through the A/D conversion unit;
步骤(6)：通过所述显示单元将所述磁场信号进行显示；Step (6): displaying the magnetic field signal through the display unit;
步骤(7)：所述控制处理将所述磁场信号与所述磁场报警值进行比较，若大于所述磁场报警值，控制所述报警发出磁场异常报警，通过所述显示单元进行报警信息显示；Step (7): the control process compares the magnetic field signal with the magnetic field alarm value, and if it is greater than the magnetic field alarm value, controls the alarm to issue an abnormal magnetic field alarm, and displays the alarm information through the display unit;
步骤(8)：通过所述通信单元将所述瞬时磁场干扰检测系统检测信息上传至所述监控中心。Step (8): Upload the detection information of the instantaneous magnetic field interference detection system to the monitoring center through the communication unit.
附图说明Description of drawings
图1为本发明一种电力设备工作瞬时磁场干扰检测系统的结构示意图。FIG. 1 is a schematic structural diagram of an instantaneous magnetic field interference detection system for power equipment operation according to the present invention.
具体实施方式Detailed ways
下面结合附图对本发明一种电力设备工作瞬时磁场干扰检测系统的具体实施方式做详细阐述。The specific embodiments of the instant magnetic field interference detection system for power equipment operation of the present invention will be described in detail below with reference to the accompanying drawings.
如图1所示，本发明的瞬时磁场干扰检测系统包括信号采集单元、信号调理单元、A/D转换单元、控制处理单元、存储单元、显示单元、按键输入单元、报警单元、通信单元和驱动单元，所述信号采集单元与所述信号调理单元、所述A/D转换单元、所述控制处理单元、所述驱动单元顺序环形连接，所述控制处理单元还分别于所述存储单元、所述显示单元、所述按键输入单元、所述报警单元、所述通信单元相连接；所述瞬时磁场干扰检测系统智能采集所述电力设备工作瞬时磁场，并进行信息处理和分析，并进行存储、显示，当所述电力设备工作瞬时磁场异常时，及时通过所述报警单元、所述显示单元发出报警，并上传至监控中心。As shown in Figure 1, the instantaneous magnetic field interference detection system of the present invention includes a signal acquisition unit, a signal conditioning unit, an A/D conversion unit, a control processing unit, a storage unit, a display unit, a key input unit, an alarm unit, a communication unit and a driver The signal acquisition unit is connected to the signal conditioning unit, the A/D conversion unit, the control processing unit, and the driving unit in sequence in a circular connection, and the control processing unit is also connected to the storage unit, the The display unit, the key input unit, the alarm unit, and the communication unit are connected; the instantaneous magnetic field interference detection system intelligently collects the instantaneous magnetic field of the power equipment, and performs information processing and analysis, and stores, Display, when the instantaneous magnetic field of the power equipment is abnormal, an alarm is issued through the alarm unit and the display unit in time, and uploaded to the monitoring center.
所述信号采集单元采用三个相同的电磁传感器采集所述电力设备工作瞬时磁场信号，所述电磁传感器相互正交放置，输出三路差分信号，能够采集三维磁场信号；所述信号采集单元接收所述驱动单元的驱动信息智能采集所述磁场信号，并通过屏蔽电缆将所述磁场信号传输至所述信号调理单元。The signal acquisition unit uses three identical electromagnetic sensors to collect the instantaneous magnetic field signals of the power equipment, the electromagnetic sensors are placed orthogonally to each other, output three-way differential signals, and can collect three-dimensional magnetic field signals; the signal acquisition unit receives the The driving information of the driving unit intelligently collects the magnetic field signal, and transmits the magnetic field signal to the signal conditioning unit through a shielded cable.
所述信号调理单元包括放大模块、滤波模块，所述放大模块采用全差分仪表放大器对所述磁场信号进行放大处理，输出符合所述A/D转换单元输入要求的信号；所述滤波模块采用低通滤波器滤除干扰信号，提高所述瞬时磁场干扰检测系统的准确性。The signal conditioning unit includes an amplification module and a filter module, the amplification module uses a fully differential instrumentation amplifier to amplify the magnetic field signal, and outputs a signal that meets the input requirements of the A/D conversion unit; the filter module uses low The interference signal is filtered out through the filter, and the accuracy of the instantaneous magnetic field interference detection system is improved.
所述A/D转换单元采用AD9266芯片对输入的信号进行A/D转换，所述AD9266芯片拥有一个SPI接口，所述SPI接口与所述控制处理单元的功能引脚连接，通过所述控制处理单元控制所述AD9266芯片的配置；所述AD9266芯片的DCO数据输出时钟控制所述控制处理单元同步读取所述A/D转换单元输出的数字信号。The A/D conversion unit uses the AD9266 chip to perform A/D conversion on the input signal. The AD9266 chip has an SPI interface, and the SPI interface is connected to the functional pins of the control processing unit. The unit controls the configuration of the AD9266 chip; the DCO data output clock of the AD9266 chip controls the control processing unit to synchronously read the digital signal output by the A/D conversion unit.
所述按键输入单元结合所述存储单元、所述显示单元进行参数设置和信息查询，所述参数包括采样率、磁场报警值；所述显示单元采用LCD显示屏。The key input unit is combined with the storage unit and the display unit to perform parameter setting and information query, and the parameters include a sampling rate and a magnetic field alarm value; the display unit adopts an LCD display screen.
所述报警单元采用声光报警器对所述瞬时磁场干扰检测系故障情况进行报警，结合所述显示单元进行报警显示。The alarm unit uses an acousto-optic alarm to alarm the fault condition of the instantaneous magnetic field interference detection system, and performs alarm display in combination with the display unit.
所述通信单元采用RS485通信电路，具有很好的抗干扰性，能够将所述瞬时磁场干扰检测系统的检测结果和报警信号上传至所述监控中心；所述瞬时磁场干扰检测系统还能够通过所述通信单元接收所述监控中心的控制信号。The communication unit adopts RS485 communication circuit, which has good anti-interference, and can upload the detection results and alarm signals of the instantaneous magnetic field interference detection system to the monitoring center; the instantaneous magnetic field interference detection system can also pass all The communication unit receives the control signal of the monitoring center.
本发明还提供一种电力设备工作瞬时磁场干扰检测系统的检测方法，所述检测方法包括如下步骤：The present invention also provides a detection method for the instantaneous magnetic field interference detection system of power equipment operation, and the detection method includes the following steps:
步骤(1)：所述控制处理单元向所述驱动单元发出控制指令；Step (1): the control processing unit sends a control instruction to the drive unit;
步骤(2)：所述驱动单元驱动所述电磁传感器采集所述电力设备工作瞬时磁场信号；Step (2): the driving unit drives the electromagnetic sensor to collect the instantaneous magnetic field signal of the power equipment;
步骤(3)：经过所述放大模块进行信号放大；Step (3): amplify the signal through the amplifying module;
步骤(4)：经过所述滤波模块滤除干扰信号；Step (4): filter out the interference signal through the filtering module;
步骤(5)：经过所述A/D转换单元进行A/D转换；Step (5): carry out A/D conversion through the A/D conversion unit;
步骤(6)：通过所述显示单元将所述磁场信号进行显示；Step (6): displaying the magnetic field signal through the display unit;
步骤(7)：所述控制处理将所述磁场信号与所述磁场报警值进行比较，若大于所述磁场报警值，控制所述报警发出磁场异常报警，通过所述显示单元进行报警信息显示；Step (7): the control process compares the magnetic field signal with the magnetic field alarm value, and if it is greater than the magnetic field alarm value, controls the alarm to issue an abnormal magnetic field alarm, and displays the alarm information through the display unit;
步骤(8)：通过所述通信单元将所述瞬时磁场干扰检测系统检测信息上传至所述监控中心。Step (8): Upload the detection information of the instantaneous magnetic field interference detection system to the monitoring center through the communication unit.
最后应该说明的是，结合上述实施例仅说明本发明的技术方案而非对其限制。所属领域的普通技术人员应当理解到，本领域技术人员可以对本发明的具体实施方式进行修改或者等同替换，但这些修改或变更均在申请待批的权利要求保护范围之中。Finally, it should be noted that the technical solutions of the present invention are only described in conjunction with the above embodiments, but not limited thereto. Those skilled in the art should understand that those skilled in the art can modify or equivalently replace the specific embodiments of the present invention, but these modifications or changes are all within the protection scope of the pending claims.
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