WO2021007880A1

WO2021007880A1 - Intelligent restart system for wireless terminal of high-voltage switch

Info

Publication number: WO2021007880A1
Application number: PCT/CN2019/097449
Authority: WO
Inventors: 张敬敏
Original assignee: 山东光韵智能科技有限公司
Priority date: 2019-07-18
Filing date: 2019-07-24
Publication date: 2021-01-21
Also published as: CN110350472A

Abstract

Disclosed is an intelligent restart system for a wireless terminal of a high-voltage switch. A high-voltage switch control loop is connected to a wireless communication module, the wireless communication module is in wireless communication with a control center, and a power supply module supplies power to the high-voltage switch control loop and the wireless communication module. A restart circuit is also comprised, wherein same is used for receiving a wireless control signal from the control center and controlling the turning on and off of circuits between a power supply device and the high-voltage switch control loop and between the power supply device and the wireless communication module. The control center tests the signal quality between same and the wireless communication module, and when the delay duration of signal transceiving exceeds a preset value, the control center transmits a turn-off signal to the restart circuit. In the present invention, by means of remotely controlling a wireless communication module, a power source of a device is automatically powered off and restarted, such that the problem of a communication fault can be effectively solved; in addition, the function of a timed restart is realized by using a timer, such that controllability is achieved, thereby improving the intelligence level of the operation of a high-voltage switch, and laying the foundation for building a safe, stable and intelligent regional power grid.

Description

High-voltage switch wireless terminal intelligent restart system

Technical field

The invention relates to the technical field of high-voltage switch control, in particular to an intelligent restart system for a high-voltage switch wireless terminal.

Background technique

In outdoor power systems, high-voltage switches are generally controlled remotely through wireless terminals and send and receive data with the control center. Due to the electromagnetic interference of the power system environment and the long-term work of the communication module, the communication module is prone to poor stability problems. In the process of remote control and monitoring, communication failure or crash caused the control center and the local high-voltage switch to fail to communicate normally. At this time, operation and maintenance personnel must go to the outdoor high-voltage switch site to switch the high-voltage switch control circuit and the working power supply of the communication module. Cut off at the same time as the standby power supply, and then restart the wireless terminal to restore the normal operation of the wireless terminal communication loop.

technical problem

Although the on-site operation is simple, it takes a long time to go to the substation, which wastes unnecessary manpower, material and financial resources. In addition, if it is an unmanned substation all year round, the remote communication module failure cannot be eliminated in time, which affects the effective operation of related systems in the smart grid and may cause unpredictable losses. Therefore, how to provide a stable high-voltage switch wireless terminal intelligent restart system is an urgent problem for those skilled in the art. Aiming at the shortcomings of the prior art, the present invention provides a high-voltage switch wireless terminal intelligent restart system.

To

Technical solutions

A high-voltage switch wireless terminal intelligent restart system includes a control center, a high-voltage switch control loop, and a power supply module. The high-voltage switch control loop is connected to a wireless communication module, the wireless communication module wirelessly communicates with the control center, and the power supply The module supplies power to the high-voltage switch control circuit and the wireless communication module; it also includes a restart circuit, which is wirelessly connected to the control center and wiredly connected to the power supply module, and is used to receive wireless from the control center. Control signal, and control the on and off of the power supply equipment, the high-voltage switch control loop, and the circuit of the wireless communication module; the control center detects the signal quality with the wireless communication module, and when the signal transmission and reception delay time exceeds At the preset value, the control center sends a cut-off signal to the restart circuit.

Preferably, the restart circuit includes a main controller and a relay protector, and the main controller is electrically connected to the power supply module through the relay protector.

Preferably, the power supply module includes a working power supply and a backup power supply, and both are electrically connected to the high-voltage switch control circuit and the wireless communication module.

Preferably, the restart circuit includes a main controller and two protective relays, and the main controller is electrically connected to the working power supply and the backup power supply through the protective relays, respectively.

Preferably, the restart circuit includes a detection port for receiving a cut-off signal sent by the control center and sending it to the main controller, and the main controller controls the protective relay to perform a cut-off action. The high-voltage switch control circuit and the wireless communication module are powered off.

Preferably, the restart circuit further includes a timer and a pulse signal generator, the timer is electrically connected to the main controller and the pulse signal generator, and the pulse signal generator is electrically connected to the main controller;

When the main controller sends a power-off instruction to the protective relay, the counter starts to clock synchronously, and when the time counted by the timer reaches a preset period of time, the pulse signal generator sends a pulse signal to the main controller Sending an instruction pulse, and the controller controls the protective relay to close according to the instruction pulse.

Preferably, the detection port includes a TCP/IP network interface, an RS232 interface and a wireless receiver. Preferably,

The period of the timer is 30s.

Preferably, the wireless receiver receives the cut-off signal sent by the control center through a wireless gateway.

Beneficial effect

Compared with the prior art, the present invention provides a high-voltage switch wireless terminal intelligent restart system, which has the following beneficial effects: the present invention reduces the down time of the remote communication module of the power system high-voltage switch and enhances the stability of the high-voltage switch communication control. . 1. The present invention greatly reduces the work pressure of maintenance personnel and operation and maintenance personnel, and saves manpower, material resources and financial resources. 2. The present invention improves the intelligent level of high-voltage switch operation and lays a foundation for building a safe, stable and intelligent regional power grid. 3. The present invention can automatically cut off the power supply of the equipment and restart it through remote control of the wireless communication module, which can effectively solve the communication failure problem. 4. Areas where no one works for a long time, such as substations, and some places that can easily cause safety accidents. The timer is used to realize the function of timing restart, which is controllable.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work.

Figure 1 is an organizational structure diagram of the intelligent restart system for a high-voltage switch wireless terminal of the present invention.

The best mode of the invention

DETAILED DESCRIPTION OF THE EMBODIMENTS The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

This embodiment provides a high-voltage switch wireless terminal intelligent restart system, including a control center, a high-voltage switch control loop, and a power supply module. The high-voltage switch control loop is connected to a wireless communication module, and the wireless communication module communicates with the control center wirelessly. The power supply module is high-voltage The switch control circuit and the wireless communication module supply power; it also includes a restart circuit, which is wirelessly connected to the control center and wiredly connected to the power supply module to receive wireless control signals from the control center, and to control the power supply equipment and the high-voltage switch control circuit and wireless communication The circuit of the module is on and off; the control center detects the quality of the signal with the wireless communication module. When the delay time of signal transmission and reception exceeds the preset value, the control center sends a cut-off signal to the restart circuit.

The restart circuit includes a main controller, a relay protector and a detection port. The main controller is electrically connected to the power supply module through the relay protector. The relay protector is arranged between the power supply module and the wireless communication module. The relay protector is located at the same time. Between the power supply module and the high-voltage switch control circuit. The detection port is used to receive the cut-off signal sent by the control center and send it to the main controller. The detection port includes a TCP/IP network interface, an RS232 interface and a wireless receiver. The main controller controls the protective relay to perform the cut-off action, and the high-voltage switch control circuit and the wireless communication module are powered off. The wireless receiver receives the cut-off signal sent by the control center through the wireless gateway.

The restart circuit also includes a timer and a pulse signal generator. The timer is electrically connected to the main controller and the pulse signal generator, and the pulse signal generator is electrically connected to the main controller; when the main controller sends a power-off command to the protective relay , The counter starts synchronous timing. When the time counted by the timer reaches the preset period, the pulse signal generator sends an instruction pulse to the main controller, and the controller controls the relay protector to close according to the instruction pulse.

In one embodiment, the period of the timer is 30s.

In one embodiment, the power supply module includes a working power supply and a backup power supply, and both are electrically connected to the high-voltage switch control circuit and the wireless communication module. The restart circuit includes a main controller and two protective relays, and the main controller is electrically connected to the working power supply and the backup power supply through the protective relays.

The working process of the present invention is as follows: the control center remotely receives and updates the status information of the high voltage switch at a fixed frequency; when the control center cannot receive the status information of the high voltage switch or the receiving status information is delayed, the control center sends a control signal to the detection port , The detection port feeds back the signal to the main controller, and the main controller controls the relay protector to disconnect, cutting off the power supply module to the wireless communication module and the high-voltage switch control loop. At this time, the counter starts timing. When the timing reaches 30s, the pulse signal generator sends a pulse signal to the main controller, the main controller controls the relay protector to close, and the power supply module re-powers the wireless communication module and the high-voltage switch control loop to achieve The process of restarting.

The above describes in detail a high-voltage switch wireless terminal intelligent restart system provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation of the present invention. The description of the above embodiments is only used to help understand the present invention. At the same time, for those of ordinary skill in the art, according to the ideas of the present invention, there will be changes in the specific implementation and the scope of application. In summary, the content of this specification should not be understood as Restrictions on the invention.

Industrial applicability

Compared with the prior art, the invention provides a high-voltage switch wireless terminal intelligent restart system, which reduces the down time of the remote communication module of the high-voltage switch of the power system and enhances the stability of the communication control of the high-voltage switch.

Sequence Listing Free Content

In this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such existence between these entities or operations. The actual relationship or order. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes Other elements of, or also include elements inherent to this process, method, article or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other same elements in the process, method, article, or equipment including the element.

To

Claims

A high-voltage switch wireless terminal intelligent restart system includes a control center, a high-voltage switch control loop, and a power supply module. The high-voltage switch control loop is connected to a wireless communication module, the wireless communication module wirelessly communicates with the control center, and the power supply The module supplies power to the high-voltage switch control loop and the wireless communication module; it is characterized in that:

It also includes a restart circuit, which is wirelessly connected to the control center and wiredly connected to the power supply module, for receiving wireless control signals from the control center and controlling the power supply equipment and the high-voltage switch control loop The circuit of the wireless communication module is on and off; the control center detects the quality of the signal with the wireless communication module, and when the delay time of signal transmission and reception exceeds the preset value, the control center sends a request to the restart circuit Send cut signal.
The intelligent restart system for a high-voltage switch wireless terminal according to claim 1, wherein the restart circuit includes a main controller and a relay protector, and the main controller is electrically connected to the power supply module through the relay protector .
The intelligent restart system for a high-voltage switch wireless terminal according to claim 1, wherein the power supply module includes a working power supply and a backup power supply, and both are electrically connected to the high-voltage switch control circuit and the wireless communication module.
The intelligent restart system for a high-voltage switch wireless terminal according to claim 3, wherein the restart circuit includes a main controller and two protective relays, and the main controller communicates with the working relay through the protective relays. The power supply is electrically connected to the backup power supply.
The intelligent restart system for a high-voltage switch wireless terminal according to claim 2 or 3, wherein the restart circuit includes a detection port for receiving a cut-off signal sent by the control center and sending it to the main controller, The main controller controls the protective relay to perform a cut-off action, and the high-voltage switch control circuit and the wireless communication module are powered off.
The intelligent restart system for a high-voltage switch wireless terminal according to claim 2 or 3, wherein the restart circuit further comprises a timer and a pulse signal generator, and the timer is connected to the main controller and the pulse signal generator. Electrically connected, the pulse signal generator is electrically connected to the main controller;

When the main controller sends a power-off instruction to the protective relay, the counter starts to clock synchronously, and when the time counted by the timer reaches a preset period of time, the pulse signal generator sends a pulse signal to the main controller Sending an instruction pulse, and the controller controls the protective relay to close according to the instruction pulse.
The intelligent restart system for a high-voltage switch wireless terminal according to claim 5, wherein the detection port comprises a TCP/IP network interface, an RS232 interface and a wireless receiver.
The intelligent restart system for a high-voltage switch wireless terminal according to claim 6, wherein the period of the timer is 30s.
The intelligent restart system for a high-voltage switch wireless terminal according to claim 1, wherein the wireless receiver receives the cut-off signal sent by the control center through a wireless gateway.