An emergency closing device and method for an intelligent magnetically controlled switch

Abstract

The present invention relates to the technical field of power system control equipment, specifically to an emergency closing device and method for an intelligent magnetically controlled switch, comprising a power consumption management module, a self-contained power supply module, an emergency closing trigger module, a switch position detection unit, a magnetically controlled switch drive module, a drive signal detection module, and a logic processing unit. Based on the acquired manual pull-rod closing trigger signal, the output state of the external controller drive signal is detected; based on the detection result of the output state, the source of the drive signal of the magnetically controlled switch body is determined; based on the source of the drive signal, the control right is switched, and the corresponding closing drive signal is output to control the magnetically controlled switch body to close; the current closing state of the magnetically controlled switch body is detected to determine the final switch closing result of the magnetically controlled switch body. The emergency closing device is structurally fixedly connected to the magnetically controlled switch body and is operated by an external emergency closing manual pull rod, without the need to climb the pole, thereby reducing personal safety risks.

Description

Technical Field

[0001] The present invention relates to the technical field of power system control equipment, and in particular to an emergency closing device and method for an intelligent magnetically controlled switch. Background Art

[0002] When the power supply of the transmission line is normal, the magnetic control drive controller can draw power from the line to close and open the magnetic control switch. However, when the power supply of the transmission line is cut off or the magnetic control drive controller fails, the magnetic control switch cannot obtain the energy required for operation and therefore cannot perform the expected action. For example, when it is necessary to close quickly to restore the power supply of the line, because the magnetic control switch does not have a backup power supply or the magnetic control drive controller fails, it will lose its control function, which may cause the power supply continuity to be interrupted, affecting the stability and reliability of the power grid, and having a potential negative impact on the economic benefits of the power grid company and even the people's livelihood. Although some manufacturers are equipped with portable closing modules, they require climbing poles, which does not comply with the operating procedures and increases the risk of falling and electric shock. Summary of the Invention

[0003] To solve the above problems, the present invention provides an emergency closing device for an intelligent magnetically controlled switch, which is fixedly electrically connected to a magnetically controlled switch body, and the magnetically controlled switch body is also electrically connected to an external main power supply and an external controller, including:

[0004] Self-contained power supply module, used to provide backup power supply and power charging for the magnetic control switch drive module; it can automatically start after the external main power supply is interrupted;

[0005] The power consumption management module is used to monitor the power supply status of the external main power supply and the self-contained power supply module in real time, and transmit the monitoring signal to the logic processing unit for power management;

[0006] Emergency closing trigger module, used to receive the external manual pull rod closing trigger signal and send the logic trigger signal to the logic control unit;

[0007] The switch position detection unit is used to detect the closed and open positions of the magnetic switch body and transmit the position detection signal to the logic control unit;

[0008] The magnetic control switch drive module is used to receive the closing command from the logic control unit, draw power and energy from the self-contained power supply module, generate a drive signal and output it to the electromagnetic coil of the magnetic control switch body to close the switch;

[0009] A drive signal detection module is used to detect the source of the drive signal of the magnetic control switch body and switch the controller of the magnetic control switch body according to the source of the drive signal;

[0010] The logic processing unit is used to receive the external main power off signal of the power consumption management module to control the self-contained power supply module to enter the sleep mode; receive the trigger signal of the emergency closing module to wake up and start; receive the detection signal corresponding to the drive signal detection module and the switch position detection unit to judge the status of the magnetic control switch body and the external controller; and based on the status judgment result of no external controller drive signal and the magnetic control switch body being in the open position, generate a closing command and transmit it to the magnetic control switch drive module to drive and control the magnetic control switch body to perform the closing operation.

[0011] The emergency closing device of the intelligent magnetic switch further includes a safety interlock mechanism, the input end of which is electrically connected to the external controller and the magnetic switch driving module respectively, and the output end of which is electrically connected to the magnetic switch body. A drive signal detection module is connected between the safety interlock mechanism and the magnetic switch body;

[0012] The safety interlock mechanism is used to receive the driving signal output by the external controller or the magnetic control switch driving module, and lock the device without the driving signal source according to the driving signal source, and only output a driving signal to the magnetic control switch body for closing.

[0013] The safety interlock mechanism is provided with a hardware circuit that is connected in series with the external controller and the magnetic control switch drive module drive circuit to form a mutual lock. The external controller and the safety interlock mechanism hardware circuit are set as normally closed nodes; the magnetic control switch drive module and the safety interlock mechanism hardware circuit are set as normally open nodes.

[0014] In a specific implementation, the battery capacity of the self-contained power module is 500 mAH, the sleep mode current is 2.2 uA, and the wake-up startup current is 2.68 mA.

[0015] Another aspect provides an emergency closing method for an intelligent magnetically controlled switch, using the emergency closing device for the intelligent magnetically controlled switch as described above, the method comprising:

[0016] S1. Obtain an external manual pull rod closing trigger signal of the magnetic control switch, and detect the output state of the external controller drive signal based on the obtained manual pull rod closing trigger signal;

[0017] S2. Determine the source of the drive signal of the magnetic control switch body according to the detection result of the output state of the drive signal of the external controller;

[0018] The driving signal detection module sets a delay time Detect whether the external controller outputs a driving signal. If the driving signal of the external controller is detected within the delay time, it is determined that the driving signal source is the external controller for driving control;

[0019] If no driving signal from the external controller is detected within the delay time, it is determined that the driving signal source is the emergency closing device and the driving control is performed;

[0020] S3: Switch the control right based on the drive signal source, and output the corresponding closing drive signal to control the magnetic control switch body to close;

[0021] When it is determined that the external controller is performing the drive control, the magnetic control switch drive module is locked, and the control right is switched to the external controller; when it is determined that the emergency closing device is performing the drive control, the external controller is locked, and the control right is switched to the magnetic control switch drive module;

[0022] S4. Detect the current closing state of the magnetic control switch body to determine the final closing result of the magnetic control switch body.

[0023] The S4 also includes switching the control right to the magnetic switch drive module when the control right of S3 is the external controller and it is determined that the switch of the magnetic switch body is in the open position, outputting the corresponding closing drive signal, and re-closing.

[0024] When S3 switches the control right to the magnetic control switch driving module, the magnetic control switch driving module stores energy by taking electricity and releases the stored energy to drive the magnetic control switch to close.

[0025] The emergency closing method of the intelligent magnetically controlled switch further includes performing fault detection based on the closing result of the S4 switch and the source of the drive signal, and the specific method is as follows:

[0026] If the switch of the magnetic control switch body is in the open position, it is determined that the magnetic control switch body is faulty, indicating that the closing operation has failed;

[0027] If the driving signal comes from the magnetic switch driving module and the switch of the magnetic switch body is in the closed position, it means that the closing is successful and the external controller has a fault;

[0028] If the driving signal comes from an external controller and the switch of the magnetic switch body is in the closed position, it means that the closing is successful and the external controller functions normally.

[0029] In a specific embodiment, before S1, it also includes real-time monitoring of the power supply status of the external main power supply, self-starting the backup power supply when the external main power supply is interrupted, and the emergency closing device enters sleep mode and is triggered to wake up based on an external manual pull rod closing trigger signal or a timing time trigger.

[0030] Beneficial effects: The present invention provides an emergency closing device and method for an intelligent magnetically controlled switch. The emergency closing device is structurally fixedly connected to the magnetically controlled switch body and is operated by an external emergency closing manual pull rod, eliminating the need to climb a pole and reducing personal safety risks.

[0031] The emergency closing device adopts a low-power circuit, which can enter the sleep state in time when the main power is cut off, thus extending the battery life of the module;

[0032] The emergency closing device has a safety interlocking mechanism, which is responsible for the interlocking function of the magnetic control switch drive module and the external controller to ensure drive safety and ensure that only one drive signal is driving at the same time.

[0033] The present invention determines the source of the driving signal of the magnetic control switch body and detects whether the magnetic control switch is finally closed, thereby realizing fault detection of the magnetic control switch body and the external controller, and facilitating and quickly locating and handling the fault. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is the structural diagram of the emergency closing device of the intelligent magnetic switch;

[0035] Figure 2 The figure is a flow chart of the emergency closing method of the intelligent magnetic switch. DETAILED DESCRIPTION

[0036] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0037] See also Figure 1 This embodiment provides an emergency closing device for an intelligent magnetically controlled switch, which is fixedly electrically connected to the magnetically controlled switch body. The magnetically controlled switch body is also electrically connected to an external main power supply and an external controller. The emergency closing device can generate a drive signal to control the magnetically controlled switch body to perform emergency closing. The device specifically includes a power consumption management module, a self-contained power supply module, an emergency closing trigger module, a switch position detection unit, a magnetically controlled switch drive module, a drive signal detection module, and a logic processing unit. The input end of the power consumption management module is electrically connected to the self-contained power supply module and the external main power supply, and the output end of the power consumption management module is connected to the logic processing unit; the logic processing unit is electrically connected to the emergency closing trigger module, the switch position detection unit, the magnetically controlled switch drive module, and the drive signal detection module, respectively; the self-contained power supply module is electrically connected to the magnetically controlled switch drive module, and the magnetically controlled switch drive module is electrically connected to the magnetically controlled switch body; the magnetically controlled switch body is electrically connected to the emergency closing trigger module and the switch position detection module.

[0038] The self-contained power supply module is used to provide backup power supply and power the magnetic switch drive module. It can automatically start after the external main power supply is interrupted to ensure the continuous operation of the device online.

[0039] The power consumption management module is used to monitor the power supply status of the external main power supply and the self-contained power supply module in real time, and transmit the monitoring signal to the logic processing unit for power management;

[0040] The emergency closing trigger module is used to receive the external manual pull rod closing trigger signal and send a logic trigger signal to the logic control unit;

[0041] The switch position detection unit is used to detect the closed and open positions of the magnetic control switch body and transmit the position detection signal to the logic control unit;

[0042] The magnetic control switch drive module is used to receive the closing command from the logic control unit, and draw power and energy from the self-contained power supply module to generate a drive signal and output it to the electromagnetic coil of the magnetic control switch body to close the switch;

[0043] The drive signal detection module is used to detect the source of the drive signal of the magnetic control switch body and switch the controller of the magnetic control switch body according to the source of the drive signal;

[0044] The logic processing unit is used to receive information from each module to perform overall logic control processing; receive the external main power off signal of the power consumption management module to control the self-contained power supply module to enter the sleep mode; receive the trigger signal of the emergency closing module to wake up and start; receive the detection signal corresponding to the drive signal detection module and the switch position detection unit to judge the status of the magnetic control switch body and the external controller; and based on the status judgment result of no external controller drive signal and the magnetic control switch body being in the open position, generate a closing command and transmit it to the magnetic control switch drive module to drive and control the magnetic control switch body to perform the closing operation.

[0045] To ensure that the magnetic switch has only one source of drive signals when closing, the device also includes a safety interlock mechanism. The safety interlock mechanism's inputs are electrically connected to the external controller and the magnetic switch driver module, respectively, and its output is electrically connected to the magnetic switch. A drive signal detection module is connected between the safety interlock mechanism and the magnetic switch. The safety interlock mechanism receives drive signals from the external controller or the magnetic switch driver module and, based on the source of the drive signals, locks the device if it lacks a drive signal source, outputting only one drive signal to the magnetic switch for closing.

[0046] The safety interlock mechanism is provided with hardware circuits that are connected in series with the external controller and the magnetic control switch drive module drive circuit to lock each other. The external controller and the safety interlock mechanism hardware circuit are set as normally closed nodes; the magnetic control switch drive module and the safety interlock mechanism hardware circuit are set as normally open nodes. When the controller is an external controller, the safety interlock mechanism and the external controller node are normally closed, the magnetic control switch drive module is locked, and the drive signal of the external controller is received and output. When the safety interlock mechanism detects the drive signal of the magnetic control switch drive module, the node opening of the external controller is locked, the node of the magnetic control switch drive module is closed, the controller is switched to the magnetic control switch drive module, and the drive signal of the magnetic control switch drive module is received and output.

[0047] In this embodiment, in order to ensure the endurance of the emergency closing device, the battery capacity of the self-contained power module is 500mAH, the sleep mode current is 2.2uA, and the wake-up startup current is 2.68mA.

[0048] See also Figure 2 The emergency closing device of the intelligent magnetic switch performs an emergency closing method of the intelligent magnetic switch, and the specific implementation steps of the method are as follows:

[0049] S1. Obtain an external manual pull rod closing trigger signal of the magnetic control switch, and detect the output state of the external controller drive signal based on the obtained manual pull rod closing trigger signal;

[0050] When the magnetic switch needs to be closed, maintenance personnel can remotely perform the closing operation through the external emergency closing manual pull rod.

[0051] The emergency closing trigger module of the emergency closing device obtains the closing signal of the external manual pull rod of the magnetic control switch in real time. After receiving the closing signal, it sends a logic trigger signal to the logic control unit; after receiving the logic trigger signal, the logic control unit performs a delay time detection on the output state of the external controller drive signal through the drive signal detection module.

[0052] S2. Determine the source of the drive signal of the magnetic control switch body according to the detection result of the output state of the drive signal of the external controller;

[0053] The driving signal detection module sets a delay time Detect whether the external controller outputs a driving signal. If the driving signal of the external controller is detected within the delay time, it is determined that the driving signal source is the external controller for driving control;

[0054] If the driving signal from the external controller is not detected within the delay time, it is determined that the driving signal source is the emergency closing device for driving control.

[0055] S3: Switch the control right based on the drive signal source, and output the corresponding closing drive signal to control the magnetic control switch body to close;

[0056] When it is determined that the external controller is driving and controlling, the magnetic control switch driving module is locked, and the control right is switched to the external controller; when it is determined that the emergency closing device is driving and controlling, the external controller is locked, and the control right is switched to the magnetic control switch driving module. The magnetic control switch driving module stores energy by taking electricity and releases the stored energy to drive the magnetic control switch to close.

[0057] S4, detecting the current closing state of the magnetic control switch body to determine the final closing result of the magnetic control switch body;

[0058] After the magnetic control switch is driven and controlled to be closed, the switch position detection unit is used to detect the closing state of the magnetic control switch body to determine the current closing position result of the magnetic control switch body.

[0059] When the S3 control right is the external controller and it is determined that the switch of the final magnetic control switch body is in the open position, the control right is switched to the magnetic control switch drive module, which outputs the corresponding closing drive signal to reclose the switch.

[0060] At the same time, the method also includes performing fault detection based on the switch closing result in S4 and the source of the driving signal, and the specific method is as follows:

[0061] If the switch of the magnetic control switch body is in the open position, it is determined that the magnetic control switch body is faulty, indicating that the closing operation has failed;

[0062] If the driving signal comes from the magnetic switch driving module and the switch of the magnetic switch body is in the closed position, it means that the closing is successful and the external controller has a fault;

[0063] If the driving signal comes from an external controller and the switch of the magnetic switch body is in the closed position, it means that the closing is successful and the external controller functions normally.

[0064] In order to ensure that the emergency closing device can maintain long-term endurance when the external main power supply is cut off, and to ensure the normal processing of the closing of the magnetic control switch body, the method also includes real-time monitoring of the power supply status of the external main power supply before S1, and self-starting the backup power supply when the external main power supply is interrupted. The emergency closing device enters sleep mode and wakes up based on the external manual pull rod closing trigger signal or the timing trigger.

[0065] The power consumption management module of the emergency closing device monitors the power supply status of the external main power supply in real time. When the external main power supply is interrupted, its self-contained power supply module automatically starts to supply power to the entire device; the power consumption management module sends a backup power supply monitoring signal to the logic control unit, and the logic control unit controls each module to enter a low-power sleep mode and presets a timer of 1 minute to wake up the system. If an external manual pull-rod closing trigger signal is received within the timer, each module is woken up and started to perform S1 operation, and a delay time detection is performed on the drive signal of the external controller; or it is detected whether the timer time is reached, and the power consumption management module is woken up to re-monitor the power supply status of the external main power supply.

Claims

1. An emergency closing device for an intelligent magnetically controlled switch, fixedly electrically connected to a magnetically controlled switch body, wherein the magnetically controlled switch body is also electrically connected to an external main power supply and an external controller, characterized in that: include: Self-contained power supply module, used to provide backup power supply and power charging for the magnetic control switch drive module; Capable of automatic startup after external main power supply interruption; The power consumption management module is used to monitor the power supply status of the external main power supply and the self-contained power supply module in real time, and transmit the monitoring signal to the logic processing unit for power management; Emergency closing trigger module, used to receive the external manual pull rod closing trigger signal and send the logic trigger signal to the logic control unit; The switch position detection unit is used to detect the closed and open positions of the magnetic switch body and transmit the position detection signal to the logic control unit; The magnetic control switch drive module is used to receive the closing command from the logic control unit, draw power and energy from the self-contained power supply module, generate a drive signal and output it to the electromagnetic coil of the magnetic control switch body to close the switch; A drive signal detection module is used to detect the source of the drive signal of the magnetic control switch body and switch the controller of the magnetic control switch body according to the source of the drive signal; The logic processing unit is used to receive the external main power off signal of the power consumption management module to control the self-contained power supply module to enter the sleep mode; receive the trigger signal of the emergency closing module to wake up and start; receive the detection signal corresponding to the drive signal detection module and the switch position detection unit to judge the status of the magnetic control switch body and the external controller; and based on the status judgment result of no external controller drive signal and the magnetic control switch body being in the open position, generate a closing command and transmit it to the magnetic control switch drive module to drive and control the magnetic control switch body to perform the closing operation.

2. The emergency closing device of the intelligent magnetic switch according to claim 1, characterized in that: It also includes a safety interlock mechanism, wherein the input end of the safety interlock mechanism is electrically connected to the external controller and the magnetic control switch driving module respectively, and the output end thereof is electrically connected to the magnetic control switch body, and a driving signal detection module is connected between the safety interlock mechanism and the magnetic control switch body; The safety interlock mechanism is used to receive the driving signal output by the external controller or the magnetic control switch driving module, and lock the device without the driving signal source according to the driving signal source, and only output a driving signal to the magnetic control switch body for closing.

3. The emergency closing device of the intelligent magnetic switch according to claim 1, characterized in that: The battery capacity of the self-contained power supply module is 500mAH, the sleep mode current is 2.2uA, and the wake-up startup current is 2.68mA.

4. The emergency closing device of the intelligent magnetic switch according to claim 2, characterized in that: The safety interlock mechanism is provided with a hardware circuit that is connected in series with the external controller and the magnetic control switch drive module drive circuit to form a mutual lock. The external controller and the safety interlock mechanism hardware circuit are set as normally closed nodes; the magnetic control switch drive module and the safety interlock mechanism hardware circuit are set as normally open nodes.

5. An emergency closing method for an intelligent magnetic switch, characterized in that: An emergency closing device for an intelligent magnetically controlled switch according to any one of claims 1 to 4 is used, wherein the method comprises: S1. Obtain an external manual pull rod closing trigger signal of the magnetic control switch, and detect the output state of the external controller drive signal based on the obtained manual pull rod closing trigger signal; S2. Determine the source of the drive signal of the magnetic control switch body according to the detection result of the output state of the drive signal of the external controller; The driving signal detection module sets a delay time Detect whether the external controller outputs a driving signal. If the driving signal of the external controller is detected within the delay time, it is determined that the driving signal source is the external controller for driving control; If no driving signal from the external controller is detected within the delay time, it is determined that the driving signal source is the emergency closing device and the driving control is performed; S3: Switch the control right based on the drive signal source, and output the corresponding closing drive signal to control the magnetic control switch body to close; When it is determined that the external controller is performing the drive control, the magnetic control switch drive module is locked, and the control right is switched to the external controller; when it is determined that the emergency closing device is performing the drive control, the external controller is locked, and the control right is switched to the magnetic control switch drive module; S4. Detect the current closing state of the magnetic control switch body to determine the final closing result of the magnetic control switch body.

6. The emergency closing method of the intelligent magnetic switch according to claim 5, characterized in that: The S4 also includes switching the control right to the magnetic switch drive module when the control right of S3 is the external controller and it is determined that the switch of the magnetic switch body is in the open position, outputting the corresponding closing drive signal, and re-closing.

7. The emergency closing method of the intelligent magnetic switch according to claim 6, characterized in that: When S3 switches the control right to the magnetic control switch driving module, the magnetic control switch driving module stores energy by taking electricity and releases the stored energy to drive the magnetic control switch to close.

8. The emergency closing method of the intelligent magnetic switch according to claim 5, characterized in that: It also includes performing fault detection based on the switch closing result in S4 and the source of the driving signal, and the specific method is as follows: If the switch of the magnetic control switch body is in the open position, it is determined that the magnetic control switch body is faulty, indicating that the closing operation has failed; If the driving signal comes from the magnetic switch driving module and the switch of the magnetic switch body is in the closed position, it means that the closing is successful and the external controller has a fault; If the driving signal comes from an external controller and the switch of the magnetic switch body is in the closed position, it means that the closing is successful and the external controller functions normally.

9. The emergency closing method of the intelligent magnetic switch according to claim 5, characterized in that: Before S1, it also includes real-time monitoring of the power supply status of the external main power supply, and self-starting the backup power supply when the external main power supply is interrupted. The emergency closing device enters the sleep mode and is awakened and started based on the external manual pull rod closing trigger signal or the timing time trigger.

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