CN215601088U

CN215601088U - Cloud management system for preventing bus from being electrified based on quick circuit breaker

Info

Publication number: CN215601088U
Application number: CN202120062514.5U
Authority: CN
Inventors: 龙佼佼
Original assignee: Hefei Technology Innovation Engineering Institute of CAS
Current assignee: Hefei Technology Innovation Engineering Institute of CAS
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2022-01-21
Anticipated expiration: 2031-01-11

Abstract

The utility model relates to a cloud management system for preventing bus interference based on a quick circuit breaker, which comprises a double-drive anti-interference device, a 4G/5G Internet of things module, a digital cloud platform and WEB and APP mobile end visual interfaces, wherein the output of the double-drive anti-interference device is correspondingly provided with the digital cloud platform connected with the WEB and APP mobile end visual interfaces through the 4G/5G Internet of things module, the double-drive anti-interference device comprises a functional module and a quick fault detection control system, the functional module is formed by connecting a double-eddy current drive type quick circuit breaker K and a high impedance reactor L in parallel, and the input end of the functional module is connected with a power grid bus together. Has the advantages that: use quick circuit breaker to carry out the device of quick isolation to prevent that the short circuit from causing busbar voltage to shake the electricity, lead to equipment to shut down and stop the fortune, and adopt cloud platform technique, internet of things, various electric power state parameters of real-time supervision system and the information such as the operational aspect of device, and remove the end through WEB end and APP and look over in real time.

Description

Cloud management system for preventing bus from being electrified based on quick circuit breaker

Technical Field

The utility model belongs to the field of power system protection, and particularly relates to a cloud management system for preventing bus power failure based on a quick circuit breaker.

Background

In an electric power system, short circuits are very common and also very harmful types of faults. Due to system short-circuit faults caused by various reasons such as external lightning strike, insulation aging of internal lines or large-scale load starting, the system can cause the bus voltage at the load end to drop rapidly, so that the condition of large-scale shutdown of electric equipment is caused, continuous production interruption of enterprises is caused, and huge economic loss is caused. Therefore, it is urgently needed to develop a device for rapidly cutting off a short-circuit fault point, maintaining the stable bus voltage and ensuring the production continuity when the short-circuit fault occurs. Meanwhile, by the Internet of things technology and the adoption of a digital and visual cloud management system, the running state of the device is monitored in real time, so that the problem that the system fault or the device fault is not maintained timely and the fault is expanded is avoided

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cloud management system for preventing bus interference based on a quick breaker, which aims to solve the problems that:

a cloud management system for preventing bus interference based on a quick circuit breaker comprises a double-drive anti-interference device, a 4G/5G Internet of things module, a digital cloud platform and a WEB and APP mobile end visual interface, wherein the output of the anti-interference device is correspondingly provided with the digital cloud platform connected with the WEB and APP mobile end visual interface through the 4G/5G Internet of things module, the double-drive anti-interference device comprises a functional module and a quick fault detection control system, the functional module is formed by connecting a double-eddy current drive type quick circuit breaker K and a high impedance reactor L in parallel, the input end of the functional module is connected with a power grid bus together, the power grid bus and the quick fault detection control system are connected through a current transformer and a voltage transformer respectively, the quick fault detection control system is composed of a main control unit, an input amount unit and a voltage current detection unit, the display and background communication unit and the output unit are connected in a bidirectional mode.

Furthermore, the main control unit comprises a DSP unit, an ARM unit, an FPGA programmable logic unit and an AD sampling unit, the AD sampling unit is connected with the voltage and current detection unit, voltage signals and current signals of a system are collected through a voltage transformer and a current transformer, data collected by the AD sampling unit enter the FPGA unit to be processed, the processed data are transmitted to the DSP unit and the ARM unit at the same time, the DSP unit operates and analyzes the data to finally judge whether the system has short-circuit faults or not, corresponding logic signals are given to the output unit, and the ARM unit receives the voltage and current data and processes the voltage and current data and then transmits the processed data to the display and background communication unit.

Further, the voltage and current detection unit comprises a three-phase voltage acquisition unit and a three-phase current acquisition unit, the voltage and current acquisition unit respectively uses a voltage transformer to acquire three-phase voltage, the current transformer acquires three-phase current and transmits the acquired signals to the main control unit, the input unit comprises a plurality of digital quantity input channels and adopts optical coupling isolation, the isolated signals enter the main control unit, the output unit comprises a plurality of digital quantity output channels, the output signals are controlled by the main control unit and output is isolated by the optical coupling.

Furthermore, the 4G/5G internet of things module comprises a communication interface unit and a 4G/5G communication module which are connected with the rapid fault detection control system, the communication interface unit is connected with the main control unit in an RS485 and RJ45 interface or CAN communication interface mode, is an intermediate unit for connecting the dual-drive anti-shaking device and the 4G/5G communication module, and the communication module has a 4G/5G communication function and is connected with the communication interface unit in parallel.

Further, the digital cloud platform comprises: the device access management unit, the database unit, the data analysis unit and the application interface unit.

Further, WEB and APP remove end visual interface include: the system comprises a user login management unit, an equipment operation monitoring unit, an equipment action recording unit, an equipment operation and maintenance recording unit and a system working condition analysis unit.

The utility model has the advantages that: the functional module with the functions of quickly breaking short-circuit current and keeping voltage is formed by connecting a double-eddy current driven type quick circuit breaker K and a high-impedance reactor L in parallel, and the opening time and the closing time of the double-eddy current driven type quick circuit breaker K are only a few milliseconds. When the device normally operates, the quick circuit breaker K is at a switching-on position, the on-state impedance is extremely low, the high impedance resistor L is bypassed, and the device has no energy loss; when a short-circuit fault occurs, the quick circuit breaker immediately switches on and off the short-circuit current, the short-circuit current passes through the L branch of the high-impedance reactor, the amplitude of the short-circuit current is automatically reduced from large to small, the damage of the short-circuit current to a lower-level circuit and a load is reduced, and the reliable switching on and off of the lower-level circuit breaker is facilitated. Meanwhile, the high impedance reactor L is used for raising the voltage of a superior bus to more than 90% of the rated voltage, so that the amplitude of the bus voltage is maintained, and the stable operation of other branch equipment is guaranteed.

Drawings

FIG. 1 is a schematic diagram of the connection of the management system of the present invention;

FIG. 2 is a schematic view of the dual-driving anti-sloshing apparatus of the present invention;

FIG. 3 is a schematic diagram of the rapid fault detection control system of the present invention;

FIG. 4 is a schematic diagram of a 4G/5G IOT module of the present invention;

FIG. 5 is a schematic diagram of a digital cloud platform according to the present invention;

FIG. 6 is a schematic diagram of a WEB and APP mobile terminal visualization interface platform according to the present invention.

Detailed Description

The utility model provides a cloud management system based on two eddy current drive formula quick circuit breakers prevent generating line electricity interference, includes that two drive are anti to shake device 01, 4G/5G thing networking module 02, digital cloud platform 03 and WEB and APP remove end visual interface 04, as shown in the description attached figure 1.

The specific embodiment of this scheme is, two anti-shaking devices 01 that drive include: as shown in fig. 2, the functional module 11 with the function of quickly opening and closing short-circuit current and voltage holding and the control system 12 with the function of quickly detecting faults are composed of a double eddy current driven type quick circuit breaker K and a high impedance reactor L which are connected in parallel, and the opening time and the closing time of the double eddy current driven type quick circuit breaker K are only a few milliseconds. When the device normally operates, the quick circuit breaker K is at a switching-on position, the on-state impedance is extremely low, the high impedance resistor L is bypassed, and the device has no energy loss; when a short-circuit fault occurs, the quick circuit breaker immediately switches on and off the short-circuit current, the short-circuit current passes through the L branch of the high-impedance reactor, the amplitude of the short-circuit current is automatically reduced from large to small, the damage of the short-circuit current to a lower-level circuit and a load is reduced, and the reliable switching on and off of the lower-level circuit breaker is facilitated. Meanwhile, the high impedance reactor L is used for raising the voltage of a superior bus to more than 90% of the rated voltage, so that the amplitude of the bus voltage is maintained, and the stable operation of other branch equipment is guaranteed.

The specific embodiment of the present invention is that the control system 12 with the function of fast fault detection is composed of a main control unit 13, an input unit 15, a voltage and current detection unit 14, a display and background communication unit 16 and an output unit 17, as shown in fig. 3.

The specific embodiment of the present invention is that the main control unit 13 includes a DSP unit, an ARM unit, an FPGA programmable logic unit, an AD sampling unit, and the like. The AD sampling unit is connected with the voltage and current detection unit 14 and acquires a system voltage signal and a system current signal through PT and CT; the AD acquired data enter the FPGA unit for processing, the processed data are transmitted to the DSP unit and the ARM unit at the same time, the DSP unit carries out operation and analysis on the data to finally judge whether the system has a short circuit fault or not and gives corresponding logic signals to an output 17; the ARM unit receives the voltage and current data, processes the voltage and current data and then transmits the processed voltage and current data to the display and background communication unit 16.

The specific embodiment of the scheme is that the voltage and current detection unit 14 comprises three-phase voltage acquisition and three-phase current acquisition, PT is used for acquiring three-phase voltage, CT is used for acquiring three-phase current, and the acquired signals are transmitted to the main control unit 13, the input unit 15 comprises a plurality of digital input channels and is isolated by an optical coupler, the isolated signals enter the main control unit 13, the display and background communication unit 16 comprises a display unit and a background communication unit, and the background communication CAN be realized by an RS485 communication interface, an RJ45 communication interface and a CAN communication interface, so that the connection with a background monitoring system is greatly facilitated; the display unit comprises a display screen, keys, an LED display lamp and the like, and the display unit is convenient for a user to observe various current states and parameters of the device.

The specific embodiment of this scheme does, the output unit 17 include a plurality of digital output channels, output signal is controlled by the main control unit 13 to adopt opto-coupler isolation output, 4G/5G thing networking module 02 include: a communication interface unit 20 and a 4G/5G communication module 21 of the control system, as shown in FIG. 4.

The embodiment of this scheme does, communication interface unit 20 adopt the mode of RS485 and RJ45 interface or CAN communication interface to be connected with main control unit 13, be the intermediate unit who connects two drive anti-interference device 01 and 4G/5G communication module 21, communication module 21 have 4G/5G communication function, with 20 parallel ports of communication interface unit be connected, digital cloud platform 03 include: the device access management unit 30, the database unit 31, the data analysis unit 32, and the application interface unit 33 are shown in fig. 5.

The specific embodiment of the scheme is that the device access management unit 30 has the access verification and device management functions of the 4G/5G internet of things module 02 to access the digital cloud platform, when the pre-stored ID and the secret key of the device and the cloud platform are consistent, the device can be accessed to the cloud platform to realize data communication, and meanwhile, the name, the attribute, the position and other information of the access device are set, the database unit 31 stores all accessed device information according to the serial number, and stores the received related data such as the device running state, the fault history and the system parameters, the data analysis unit 32 judges whether the device is abnormal according to the preset rule for the related information uploaded by the device, judges whether the system is normal according to the voltage and current signals of the system, and outputs the corresponding display state, the application interface unit 33 is an interaction unit of the cloud platform and the WEB and APP mobile terminal visual interface 04, distribute the data of each equipment on the cloud platform to different WEB and APP mobile terminal users according to the user authority, WEB and APP mobile terminal visual interface 04 include: the system comprises a user login management unit 41, an equipment operation monitoring unit 42, an equipment action recording unit 43, an equipment operation and maintenance recording unit 44 and a system working condition analysis unit 45, as shown in fig. 6.

The specific embodiment of this scheme is, the user login management unit 41 is a user login management interface of a cloud platform and WEB and APP mobile terminal visual interface 04, a user can enter different device operation monitoring units 42 according to different authorities, the device operation monitoring unit 42 displays real-time operation states of all devices within the user authority range in a visual interface mode, the user can observe the field operation condition of the device at any time, the device action recording unit 43 summarizes all action records of the device according to action time, and simultaneously displays voltage and current waveforms during action, action state information of a fast breaker, so as to facilitate user analysis of system and device conditions, the device operation and maintenance recording unit 44 records all historical operation and maintenance conditions of each device, provides data support for the current stable operation of the device, the system working condition analysis unit 45 counts the number of short circuit faults of the system where the device is located, system power quality analysis for providing data support for reliability of user analysis system

The specific embodiment of this scheme does, to system short-circuit fault, uses quick circuit breaker to carry out the device of quick isolation to prevent that the short circuit from causing bus voltage to shake the electricity, lead to equipment shutdown to shut down, and adopt cloud platform technique, internet of things, the information such as the operational aspect of various electric power state parameters of real-time supervision system and device, and remove the end through WEB end and APP and look over in real time.

The above description is provided for further details of the present invention with reference to specific embodiments, and the present invention is not to be considered as limited to the specific embodiments. Within the framework of the inventive idea, several simple evolutions are possible, which are considered to be within the scope of the patent protection defined by the claims filed with the present invention.

Claims

1. A cloud management system for preventing bus interference electricity based on a quick breaker is characterized by comprising a double-drive anti-interference device (01), a 4G/5G Internet of things module (02), a digital cloud platform (03) and WEB and APP mobile end visual interfaces (04), wherein the output of the double-drive anti-interference device (01) is correspondingly provided with the digital cloud platform (03) connected with the WEB and APP mobile end visual interfaces (04) through the 4G/5G Internet of things module (02), the double-drive anti-interference device (01) comprises a functional module (11) and a quick fault detection control system (12), the functional module (11) is formed by connecting a double-eddy current drive type quick breaker K and a high impedance reactor L in parallel, the input end of the functional module is connected with a power grid bus together, and the power grid bus and the quick fault detection control system (12) are connected with each other through a current transformer and a voltage transformer, quick fault detection control system (12) is by main control unit (13), and volume of opening unit (15), voltage current detection unit (14), and demonstration and backstage communication unit (16) and volume of opening unit (17) are constituteed, main control unit (13) input is connected with volume of opening unit (15) and voltage current detection unit (14) respectively, just main control unit (13) output is connected with volume of opening unit (17), be two way connection between demonstration and backstage communication unit (16) and main control unit (13).

2. The cloud management system for preventing bus interference based on the fast breaker as claimed in claim 1, wherein the main control unit (13) comprises a DSP unit, an ARM unit, an FPGA programmable logic unit and an AD sampling unit, the AD sampling unit is connected with a voltage and current detection unit (14), a voltage signal and a current signal of the system are collected through a voltage transformer and a current transformer, data collected by the AD sampling unit enter the FPGA unit for processing, the processed data are simultaneously transmitted to the DSP unit and the ARM unit, the DSP unit operates and analyzes the data, finally judges whether a short circuit fault occurs in the system, and sends a corresponding logic signal to the output unit (17), and the ARM unit receives the voltage and current data and sends the processed data to the display and background communication unit (16).

3. The cloud management system for preventing bus interference based on the fast circuit breaker as claimed in claim 1, wherein the voltage and current detection unit (14) comprises a three-phase voltage acquisition unit and a three-phase current acquisition unit, wherein a voltage transformer is used for acquiring a three-phase voltage, a current transformer is used for acquiring a three-phase current, and transmitting an acquired signal to the main control unit (13), the input unit (15) comprises a plurality of digital quantity input channels and is isolated by an optical coupler, an isolated signal enters the main control unit (13), the output unit (17) comprises a plurality of digital quantity output channels, and an output signal is controlled by the main control unit (13) and is isolated and output by the optical coupler.

4. The cloud management system for preventing bus interference based on the fast circuit breaker as claimed in claim 1, wherein the 4G/5G internet of things module (02) comprises a communication interface unit (20) connected with the fast fault detection control system (12) and a 4G/5G communication module (21), the communication interface unit (20) is connected with the main control unit (13) in a manner of RS485 and RJ45 interfaces or CAN communication interfaces, and is an intermediate unit for connecting the dual-drive interference prevention device (01) and the 4G/5G communication module (21), and the communication module (21) has a 4G/5G communication function and is connected with the communication interface unit (20) in parallel.

5. The cloud management system for preventing bus-bar interference based on the fast breaker as claimed in claim 1, wherein the digital cloud platform (03) comprises: the device comprises a device access management unit (30), a database unit (31), a data analysis unit (32) and an application interface unit (33).

6. The cloud management system for preventing bus interference based on the fast breaker as claimed in claim 1, wherein the WEB and APP mobile terminal visual interface (04) comprises: the system comprises a user login management unit (41), an equipment operation monitoring unit (42), an equipment action recording unit (43), an equipment operation and maintenance recording unit (44) and a system working condition analysis unit (45).