CN215580334U

CN215580334U - Intelligent switch controller

Info

Publication number: CN215580334U
Application number: CN202122285402.9U
Authority: CN
Inventors: 许军营; 刘晓东; 张刘阳; 王茜
Original assignee: Baoding Jineng Electrical Automation Equipment Co ltd
Current assignee: Baoding Jineng Electrical Automation Equipment Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-01-18
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses an intelligent switch controller, which comprises an acquisition module, a communication module and a control module, wherein the acquisition module is connected with a processor through the communication module and is used for acquiring voltage, current and voltage frequency in a circuit system as first acquisition data; the processor is connected with the processor through the communication module and used for monitoring and processing first acquired data in the circuit system, if fault information is found, the position of a fault section is positioned based on the fault information, the fault section is isolated and powered off, and power supply of a non-fault section is recovered; the dehumidification module is connected with the processor and used for controlling the humidity inside the intelligent switch controller; and the data storage is connected with the acquisition module and used for storing the first acquisition data. The utility model not only protects the circuit, but also carries out dehumidification treatment, monitors the humidity in the controller in real time, thereby reducing the damage rate of the controller and greatly reducing the use cost of the controller.

Description

Intelligent switch controller

Technical Field

The utility model relates to the field of circuit control, in particular to an intelligent switch controller.

Background

The power system is composed of a power transmission system and a power distribution system. The distribution automation system distributes electric energy obtained from a high-voltage transmission network to power consumption units through distribution lines, distribution substations, substations and the like, and plays an extremely important role in the process of power transmission. A distribution automation system is an automation system that is called to enable a distribution enterprise to monitor, coordinate, and operate distribution equipment remotely and in real time. According to the system level, the power distribution automation is divided into 4 parts of power distribution management system, transformer substation comprehensive automation, feeder automation, demander management and the like. The feeder automation is to monitor the operation mode and load of the feeder, and after a fault occurs, the fault section can be timely and accurately determined, so that remote switching-on and switching-off operations of a line switch are realized, the fault section is quickly isolated, and the power supply of the healthy section is recovered, which is one of the most important contents of power distribution automation. Feeder automation systems based on reclosers or FTUs are essentially based on a large number of distribution automation intelligent switch controllers located at the very bottom. With the continuous improvement of the feeder automation function and the principle of following the function transfer, the distribution automation intelligent switch controller only realizes the RTU function and the control of the section switch, and comprehensively realizes new functions of feeder monitoring, feeder protection, feeder electric energy quality analysis, low current grounding protection, feeder reactive voltage control, electric energy metering and the like from the aspect of the function optimization of a distribution system.

The humidity of many indoor places is very high, the phenomenon of moisture regain is serious, the switch controller cabinet is also affected by rainy seasonal weather to be wet when contacting with air, the phenomenon of water tree aging occurs, and finally the switch controller loses the control function; the moist air is more likely to damp secondary equipment such as switch controllers, etc., causing short circuits, resulting in faulty power outages, and the losses caused thereby are immeasurable. The method comprises the following steps: the dehumidifying cotton with good performance is adhered to the inner wall of the distribution switch controller cabinet, so that the open water generated on the inner wall of the switch controller is absorbed, and the interior is kept free of the open water; the second method comprises the following steps: the important plate and the terminal strip in the distribution switch controller cabinet are sealed by adopting a sealant, and are isolated from the outside, so that the short circuit caused by moisture, dirt and the like in the air is avoided. Both methods are not effective in moisture protection and dehumidification.

Therefore, from the practical application point of view, in order to solve the above technical problems, it becomes very practical to design an intelligent switch controller.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides an intelligent switch controller to solve the existing problems of short circuit and electric leakage.

An intelligent switch controller is characterized by comprising

The acquisition module is wirelessly connected with the processor through the communication module, and is used for acquiring voltage, current and voltage frequency in the circuit system as first acquisition data, and presetting a voltage range through the first acquisition data;

the processor is used for monitoring and processing first acquired data in the circuit system, locating the position of a fault section based on fault information if the fault information is found, isolating and powering off the fault section in the circuit system, and recovering power transmission of a non-fault section;

the dehumidification module is connected with the processor and used for controlling the humidity inside the intelligent switch controller;

and the data storage is in wired connection with the acquisition module through the communication module and is used for storing the first acquisition data.

Preferably, the dehumidification module comprises a humidity sensor, a data collector and a dehumidifier, a highest humidity threshold and a lowest humidity threshold are preset in the humidity sensor, the data collector is used for collecting real-time humidity data in the intelligent switch controller, and the data collector is electrically connected with the humidity sensor; the dehumidifier is arranged at the lower part of the inner cavity of the intelligent switch controller and is electrically connected with the humidity sensor.

Preferably, the processor is respectively connected with the humidity sensor, the data collector and the dehumidifier, the humidity sensor transmits collected real-time data to the processor, the processor controls the dehumidifier to work, and the dehumidifier is started when the humidity is greater than a highest humidity threshold value preset by the humidity sensor; and the dehumidifier is closed when the humidity is less than the lowest humidity threshold value preset by the humidity sensor.

Preferably, the model of the dehumidifier is an industrial dehumidifier DY-6480/A.

Preferably, the processor processes the acquired information by using a DSP chip and calculates the position of the fault section.

Preferably, the processor comprises:

the first processor is respectively connected with a circuit breaker and a surge protector, and the circuit breaker and the surge protector are respectively used for carrying out voltage-loss tripping and overvoltage protection in a fault section;

and the second processor is connected with the locking device and used for controlling the locking device to perform time locking, voltage locking on two sides and instantaneous pressurization locking.

Preferably, the processor further comprises:

the breaker is used for tripping in a fault section when the real-time voltage value is lower than a preset voltage range; and the surge protector is used for performing overvoltage protection in a fault section when the real-time voltage is higher than a preset voltage range.

Preferably, the latching means comprises a mechanical latching means, an electrical interlocking means and an electromagnetic locking means.

Preferably, the communication mode of the communication module includes wired communication and wireless communication,

the wired communication carries out data transmission through an RS232 serial port on the communication module;

the wireless communication at least adopts the modes of WIFI, GPRS and NB-LoT to carry out data transmission.

The utility model discloses the following technical effects:

the utility model provides an intelligent switch controller,

1. the utility model can locate and isolate the fault circuit by segmenting points and contact points in a manner of a recloser-time voltage type reclosing segmenter, recovers non-fault power transmission in time, adopts GPRS (general packet radio service) and scheduling real-time communication, and controls real-time transmission information parameters, so that a switch controller can well control the circuit and integrally and uniformly complete the protection of the circuit.

2. According to the intelligent switch controller, the dehumidification module is arranged, and the dehumidifier is directly arranged in the intelligent switch controller, and the opening and closing of the dehumidifier are determined according to the humidity value acquired by the internal humidity sensor, so that the humidity in the intelligent switch controller can be controlled in a required range by setting the humidity threshold value for opening and closing the dehumidifier in a reasonable range, the moisture hidden danger of the whole switch controller is reduced, and the reliability of the switch controller is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

Fig. 1 is a schematic view of the overall structure according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in FIG. 1, the utility model provides an intelligent switch controller, comprising

The dehumidification module comprises a humidity sensor, a data collector and a dehumidifier, wherein the dehumidifier adopts an industrial dehumidifier DY-6480/A, a highest humidity threshold and a lowest humidity threshold are preset in the humidity sensor, the data collector is used for collecting real-time humidity data in the intelligent switch controller, and the data collector is electrically connected with the humidity sensor. The dehumidifier is arranged at the lower part of the inner cavity of the intelligent switch controller and is electrically connected with the humidity sensor. The dehumidifier is started when the humidity is greater than a highest humidity threshold value preset by a humidity sensor; and the dehumidifier is closed when the humidity is less than the lowest humidity threshold preset by the humidity sensor. It can be seen that, because the dehumidifier is directly installed inside the switch controller, and the opening and closing of the dehumidifier are determined according to the humidity value collected by the internal humidity sensor, the humidity in the switch controller can be controlled within the required range as long as the humidity threshold value for opening and closing the dehumidifier is set within the reasonable range. It can be understood that since the dehumidifier is installed at the lower side in the switch controller, the inside can be very conveniently dehumidified. The maximum humidity threshold and the minimum humidity threshold are not fixed and can be set by the user. The humidity sensor feeds measured temperature and humidity values back to the dehumidifier, and a power supply of the humidity sensor is connected from the dehumidifier. Judging whether the dehumidifier is started or not according to the obtained humidity data, and starting to work when the humidity is more than or equal to 65% RH under the general condition; when the detected humidity is less than or equal to 60% RH, the operation is stopped, and the threshold for starting and stopping can be adjusted by the user according to the requirement.

The processor adopts the DSP chip to process the acquired information and calculates the position of the fault section.

The processor includes: the first processor is respectively connected with a circuit breaker and a surge protector, and the circuit breaker and the surge protector are respectively used for carrying out voltage-loss tripping and overvoltage protection in a fault section; the second processor is connected with the locking device and used for controlling the locking device to perform time locking, voltage locking on two sides and instantaneous pressurization locking; the processor further includes: the breaker is used for tripping in a fault section when the real-time voltage value is lower than a preset voltage range; and the surge protector is used for performing overvoltage protection in a fault section when the real-time voltage is higher than a preset voltage range. The breaker is used for cutting off and connecting a load circuit and cutting off a fault circuit, so that the accident is prevented from being enlarged, and the safe operation is ensured. When the high-voltage circuit breaker is to cut off 1500V, the electric arcs with the current of 1500-2000A can be elongated to 2m and still continue to burn and not extinguish. Arc extinction is a problem that must be solved by high-voltage circuit breakers. Low-voltage circuit breakers, also known as automatic air switches, can be used to switch on and off a load circuit, and also to control motors which are not activated frequently. The function of the protector is equivalent to the sum of the functions of part or all of the electric appliances such as a knife switch, an overcurrent relay, a voltage loss relay, a thermal relay, a leakage protector and the like, and the protector is an important protective electric appliance in a low-voltage distribution network. The low-voltage circuit breaker has the advantages of various protection functions (overload, short circuit, under-voltage protection and the like), adjustable action value, high breaking capacity, convenience in operation, safety and the like, so that the low-voltage circuit breaker is widely applied at present. The low-voltage circuit breaker comprises an operating mechanism, contacts, a protection device (various releases), an arc extinguishing system and the like.

Surge protectors are used to limit atmospheric overvoltage (lightning strikes) in the electrical grid from exceeding the surge withstand voltage that various equipment and electrical distribution devices can withstand. The surge arrester is essentially a semiconductor piezoresistor device, and the resistance size depends on the terminal voltage of the surge arrester. When the terminal voltage is less than the trigger voltage Up of the protector, the resistance of the protector is very high (more than 1 megaohm), and only very small leakage current (less than 1 milliampere) flows; when the terminal voltage (such as atmospheric overvoltage) reaches the trigger voltage Up, the resistance is suddenly reduced to only a few ohms, so that large inrush current passes through, and the overvoltage is suddenly reduced and then becomes high-resistance in a short time. The normal leakage current of the surge device is small, but the leakage current can be increased along with the increase of the number of lightning strokes. Preferably, the latching means comprises a mechanical latching means, an electrical interlocking means and an electromagnetic locking means.

The locking device mainly refers to: firstly, the circuit breaker is prevented from being opened and closed by mistake; secondly, the isolating switch is prevented from being switched on and off under load; preventing the charged hanging (closing) of a grounding wire (a grounding switch); preventing the circuit breaker (isolating switch) with the grounding wire (grounding switch) from being closed; prevent the false entering of the electrified interval. The conventional anti-misoperation locking modes mainly comprise 4 modes: mechanical locks, program locks, electrical interlocks and electromagnetic locks. The locking modes play a positive role in preventing misoperation, and practice proves that the advantages and the disadvantages of various traditional locking modes are fully displayed. The system is structurally divided into a station control layer, a spacing layer and a process layer. It is composed of error-proof host, computer key, remote-control locking device and various locks. The anti-misoperation host generates an actual operation program according to the anti-misoperation logic rule and the simulation rehearsal step, and adopts the following three modes to carry out unlocking operation according to different equipment locking modes:

1) unlocking by a computer key;

2) the intelligent lockset is directly controlled to unlock through a remote locking control unit and the like;

3) and unlocking the monitoring system through the communication interface.

And operating the equipment by the operator in sequence according to the prompts of the anti-misoperation host and the computer key. And for the operation which does not conform to the program, the equipment refuses to unlock, and the operation cannot be carried out, so that the misoperation is prevented. By tracking the actual state of the field device and receiving the returned information of the computer key, the error prevention host confirms the current operation and then carries out the next operation until the operation task is finished.

The communication mode of the communication module comprises wired communication and wireless communication, wherein the wired communication carries out data transmission through an RS232 serial port on the communication module; the wireless communication at least adopts the modes of WIFI, GPRS and NB-LoT to carry out data transmission.

The collection module carries out electric parameter collection to electric power system, and electric parameter includes: voltage, electric current and voltage frequency, regard the electrical parameter as first data collection, with first data collection through communication module wireless transmission to treater, the treater is based on preset electrical parameter threshold value to first data collection carries out real-time supervision, when the condition that fault information surpassed the threshold value appears, through the treater to fault information analysis and processing back, calculate the fault location that fault information corresponds, isolate the outage to the trouble section, resume non-trouble section power transmission, in addition, the dehumidifier is still installed to the intelligence switch controller inner chamber, be used for detecting the inside humidity of intelligence switch controller, and dehumidify, collection module has data storage through communication module's RS232 serial ports wired connection, be used for storing first data collection.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the present invention in its spirit and scope. Are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An intelligent switch controller is characterized by comprising

2. The intelligent switch controller according to claim 1, wherein the dehumidifying module comprises a humidity sensor, a data collector and a dehumidifier, a maximum humidity threshold and a minimum humidity threshold are preset in the humidity sensor, the data collector is used for collecting real-time humidity data in the intelligent switch controller, and the data collector is electrically connected with the humidity sensor; the dehumidifier is arranged at the lower part of the inner cavity of the intelligent switch controller and is electrically connected with the humidity sensor.

3. The intelligent switch controller according to claim 2, wherein the processor is connected to a humidity sensor, a data collector and a dehumidifier, respectively, the humidity sensor transmits the collected real-time data to the processor, the processor controls the dehumidifier to operate, and the dehumidifier is started when the humidity is greater than a preset maximum humidity threshold of the humidity sensor; and the dehumidifier is closed when the humidity is less than the lowest humidity threshold value preset by the humidity sensor.

4. The intelligent switch controller of claim 2, wherein the model of the dehumidifier is industrial dehumidifier DY-6480/a.

5. The intelligent switch controller of claim 1, wherein the processor employs a DSP chip to process the collected information and calculate the fault segment location.

6. The intelligent switch controller of claim 5, wherein the processor comprises:

7. The intelligent switch controller of claim 6, wherein the processor further comprises:

8. The intelligent switch controller of claim 6, wherein the latching means comprises a mechanical latching means, an electrical interlocking means, and an electromagnetic locking means.

9. The intelligent switch controller of claim 1, wherein the communication means of the communication module comprises wired communication and wireless communication,