Remote emergency control circuit and controller

Abstract

The utility model discloses a remote emergency control circuit and a controller, and relates to the technical field of controllers, the remote emergency control circuit comprises a master control system, the master control system comprises a processor unit, the processor unit is connected with a communication signal processing unit, and the communication signal processing unit is connected with a voltage stabilization isolation unit; the voltage stabilization isolation unit is used for stabilizing an output voltage, the voltage stabilization isolation unit comprises a conversion module, the conversion module is connected with a voltage stabilization isolation module, the voltage stabilization isolation module is connected with a power supply module, and the power supply module is connected with a low-voltage voltage stabilization module; the voltage stabilization isolation module comprises a diode D2 connected with the E + 24V end of the conversion module, the diode D2 is connected with a coil L3 and a remote emergency controller through a connecting line, a controller power supply of the master control system is connected in series with a DO output point of the remote emergency controller, the remote emergency controller is restarted through remote or automatic judgment, and the remote emergency controller is connected with the remote emergency controller. The scheme that the cost is increased due to the design of double controllers is effectively avoided, and meanwhile, personnel are prevented from going to the site to restart the controllers.

Description

Technical Field

[0001] The utility model relates to the technical field of controllers, in particular to a remote emergency control circuit and a controller. Background Art

[0002] In the prior art, there are two solutions to the crash of the wind turbine controller: First, when the wind turbine stops generating electricity, it is necessary to send service personnel to the wind turbine site to power off and restart the control system at the bottom of the tower or climb to the control cabin on the top of the wind turbine. In reality, each wind farm has hundreds or even more wind turbines. If several wind turbine controllers crash, the control systems need to be restarted one by one, which will cause huge personnel and travel expenses. Especially for offshore wind turbines, this situation is particularly prominent, and it is necessary to rent a ship to deal with the problem on site, which is costly and time-consuming. Second, two sets of controllers are installed during the design, one set of controllers is standby, and another set of standby controllers is connected when the controller crashes. This design will greatly increase the system cost. For this reason, we propose a remote emergency control circuit and controller to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a remote emergency control circuit and a controller to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical solutions: a remote emergency control circuit, comprising a main control system, the main control system comprising a processor unit, the processor unit is connected to a communication signal processing unit, and the communication signal processing unit is connected to a voltage stabilizing isolation unit;

[0005] The voltage stabilizing isolation unit is used to stabilize the output voltage, and the voltage stabilizing isolation unit includes a conversion module, the conversion module is connected to the voltage stabilizing isolation module, the voltage stabilizing isolation module is connected to the power module, and the power module is connected to the low voltage stabilizing module;

[0006] The voltage stabilizing isolation module includes a diode D2 connected to the E+24V end of the conversion module, the diode D2 connecting line is connected to the coil L3, the coil L3 connecting line is connected to +24VE, the coil L3 is connected in parallel with a resistor R45, a discharge tube FV1, a coil L6 and a winding T1, the discharge tube is connected to the housing, the coil L6 and the winding T1 connecting line are connected to the winding T2 and connected to the housing, the winding T1 is connected in parallel with a capacitor C42, the capacitor C42 is connected in parallel with a capacitor C40, a filter L4 is connected in series with the capacitor C40, the filter L4 is connected in parallel with a capacitor C52, the capacitor C52 is connected in parallel with a capacitor C41, the capacitor C41 is connected to +24V, and the free end of the capacitor C41 is grounded.

[0007] Preferably, the processor unit comprises U1, and the U1 is connected to P2 for docking with P3 in the conversion unit, a program download port module for downloading programs in the conversion module, and a monitoring module for monitoring and restarting U1.

[0008] Preferably, the communication signal processing unit includes U3, and the U3 is connected to U1 and U5. The U3 is an Ethernet physical layer transceiver, and the model of the U3 is LAN8720A.

[0009] The conversion module is used to convert a 24V single-channel power supply into a two-channel 24V power supply module, and the conversion module model is PCB_SHAPE.

[0010] Preferably, the power supply module includes U7, the model of U7 is VRB2405YMD-6WR2, and the low voltage regulator module includes U6, the model of U6 is TL5209DR.

[0011] Preferably, the diode D2 is MBRA340T3G_3A, the coil L3 is 56u / 7447779156, the coil L6 is 56u / 7447779156, the winding T1 and the winding T2 are both 1SMB24CAT3G, the resistor C42 is 10uF / 50V, the resistor C40 is 1000pF, the filter L4 is ACM70V-701-2PL-TL-00, the resistor C52 is 330uF / 50V, and the resistor C41 is 0.1uF.

[0012] Preferably, the U1 model is STM32F407ZET6, the P2 is connected to P3, the P2 model is 6100xx243021, the program download port module includes JTAG1, the JTAG1 model is Header 10X2, the monitoring module includes U2, and the U2 model is TPS3828-33DBVT.

[0013] A controller, comprising:

[0014] DI isolation output unit; the DI isolation output unit is provided with eight and is divided into two groups, one group of DI isolation output units is connected to the conversion unit, and the other group of DI isolation output units is connected;

[0015] Power management unit; the power management unit includes U10, the U10 is connected to the DO output optocoupler isolation unit, the DO output optocoupler isolation unit is connected to P3, the U10 is connected to the relay DO output unit, the relay DO output unit is connected to the conversion unit, the U10 is connected to the active DO output unit, and the active DO output unit is connected to the conversion unit.

[0016] Preferably, one end of a group of the DI isolation output units is connected to the conversion unit DI and DO input terminals, and the other end is connected to P3 for connecting to P1 of U1 and connecting to U1;

[0017] One end of another group of DI isolation output units is connected to P1 of the conversion unit and P4 of U1, and the other end is connected to P3 of the conversion unit, for connecting to P2 and accessing U1.

[0018] Preferably, the P1 is connected to the indicator light and the reset unit, the P3 is used to connect the conversion unit and U1, and the connection unit model is PCB_SHAPE.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. Remote emergency controller: connect the controller power supply of the main control system to the DO output point of the remote emergency controller, and restart the remote emergency controller by remote or automatic judgment, which effectively avoids the cost increase of dual controller design and avoids the need for personnel to go to the site to restart the controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a circuit diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the processor unit circuit in the utility model;

[0023] Figure 3 This is a circuit diagram of a communication signal processing unit in the utility model;

[0024] Figure 4 This is a schematic diagram of the voltage stabilizing isolation unit circuit in the utility model;

[0025] Figure 5 This is a schematic diagram of the isolated output unit circuit in the utility model;

[0026] Figure 6 This is a schematic diagram of the conversion unit circuit in the utility model;

[0027] Figure 7 This is a schematic diagram of the controller structure in the utility model. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-7 , a remote emergency control circuit, including a main control system, the main control system includes a processor unit, the processor unit is connected to a communication signal processing unit, and the communication signal processing unit is connected to a voltage stabilizing isolation unit;

[0030] The voltage stabilizing isolation unit is used to stabilize the output voltage. The voltage stabilizing isolation unit includes a conversion module, the conversion module is connected to the voltage stabilizing isolation module, the voltage stabilizing isolation module is connected to the power module, and the power module is connected to the low voltage stabilizing module;

[0031] The voltage stabilizing isolation module includes a diode D2 connected to the E+24V end of the conversion module, a connecting line of the diode D2 is connected to the coil L3, a connecting line of the coil L3 is connected to +24VE, a resistor R45, a discharge tube FV1, a coil L6 and a winding T1 are connected in parallel to the coil L3, the discharge tube is connected to the housing, a connecting line of the coil L6 and the winding T1 is connected to the winding T2 and connected to the housing, the winding T1 is connected in parallel to a capacitor C42, the capacitor C42 is connected in parallel to a capacitor C40, a filter L4 is connected in series to the capacitor C40, the filter L4 is connected in parallel to the capacitor C52, the capacitor C52 is connected in parallel to the capacitor C41, the capacitor C41 is connected to +24V, and the free end of the capacitor C41 is grounded.

[0032] The processor unit comprises U1, U1 is connected to P2 for docking with P3 in the conversion unit, a program download port module for downloading programs in the conversion module, and a monitoring module for monitoring and restarting U1.

[0033] The communication signal processing unit includes U3, U3 is connected to U1 and U5, U3 is an Ethernet physical layer transceiver, and the model of U3 is LAN8720A.

[0034] The conversion module is used to convert a 24V single-channel power supply into a two-channel 24V power supply module. The conversion module model is PCB_SHAPE.

[0035] The power supply module includes U7, the model of U7 is VRB2405YMD-6WR2, and the low voltage regulator module includes U6, the model of U6 is TL5209DR.

[0036] Diode D2 is MBRA340T3G_3A, coil L3 is 56u / 7447779156, coil L6 is 56u / 7447779156, winding T1 and winding T2 are both 1SMB24CAT3G, resistor C42 is 10uF / 50V, resistor C40 is 1000pF, filter L4 is ACM70V-701-2PL-TL-00, resistor C52 is 330uF / 50V, and resistor C41 is 0.1uF.

[0037] The model of U1 is STM32F407ZET6, P2 is connected to P3, the model of P2 is 6100xx243021, the program download port module includes JTAG1, the model of JTAG1 is Header 10X2, the monitoring module includes U2, and the model of U2 is TPS3828-33DBVT.

[0038] A controller, comprising:

[0039] DI isolated output unit; DI isolated output units are provided with eight and divided into two groups, one group of DI isolated output units is connected to the conversion unit, and the other group of DI isolated output units is connected;

[0040] Power management unit; the power management unit includes U10, U10 is connected to the DO output optocoupler isolation unit, the DO output optocoupler isolation unit is connected to P3, U10 is connected to the relay DO output unit, the relay DO output unit is connected to the conversion unit, U10 is connected to the active DO output unit, and the active DO output unit is connected to the conversion unit.

[0041] One end of a set of DI isolation output units is connected to the DI and DO input terminals of the conversion unit, and the other end is connected to P3 for connecting to P1 of U1 and connecting to U1;

[0042] One end of another group of DI isolation output units is connected to P1 of the conversion unit and P4 of U1, and then connected to U1, and the other end is connected to P3 of the conversion unit for connecting to P2 and accessing U1.

[0043] P1 connects the indicator light and the reset unit, P3 is used to connect the conversion unit and U1, and the connection unit model is PCB_SHAPE.

[0044] Restart the main control system controller in the following way.

[0045] 1. Manual operation:

[0046] The restart command is input remotely, the remote emergency controller DI1 is set, the remote emergency controller DO1 is activated, the power supply of the main control system controller is disconnected for 15S, and then DO1 is automatically reset, and the main control system controller is powered on again.

[0047] DO2, DO3, and DO4 of the remote emergency controller are relay outputs, and DO5, DO6, DO7, and DO8 are active high-level outputs. These 7 DOs are reserved ports and can be used for manual control.

[0048] 2. Automatic operation:

[0049] Remote emergency controller DI3 (DI3 monitors whether the controller power supply of the main control system is powered), the power supply of the main control controller is connected to DI3. Under normal circumstances, DI3 is always high level;

[0050] DI2 contact monitors the heartbeat signal of PLC (cycle 2 seconds, high level and low level once each);

[0051] When DI3 is always at a high level, if the DI2 contact continuously detects a low level for 10 minutes (i.e., no heartbeat signal of the main controller PLC is detected), DO1 of the remote emergency controller is activated, the normally closed point becomes a normally open point, the PLC power is disconnected, and DO1 is activated for 15 seconds before returning to the normally closed state. When the heartbeat signal is restored, the monitoring mode is re-entered, thereby achieving the purpose of restarting the main control system controller.

[0052] The remote emergency controller connects the controller power supply of the main control system to the DO output point of the remote emergency controller, and restarts the remote emergency controller by remote or automatic judgment, which effectively avoids the cost increase of the dual controller design and avoids the need for personnel to go to the site to restart the controller.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A remote emergency control circuit, including a main control system, characterized in that: The main control system includes a processor unit, the processor unit is connected to a communication signal processing unit, and the communication signal processing unit is connected to a voltage stabilizing isolation unit; The voltage stabilizing isolation unit is used to stabilize the output voltage, and the voltage stabilizing isolation unit includes a conversion module, the conversion module is connected to the voltage stabilizing isolation module, the voltage stabilizing isolation module is connected to the power module, and the power module is connected to the low voltage stabilizing module; The voltage stabilizing isolation module includes a diode D2 connected to the E+24V end of the conversion module, the diode D2 connecting line is connected to the coil L3, the coil L3 connecting line is connected to +24VE, the coil L3 is connected in parallel with a resistor R45, a discharge tube FV1, a coil L6 and a winding T1, the discharge tube is connected to the housing, the coil L6 and the winding T1 connecting line are connected to the winding T2 and connected to the housing, the winding T1 is connected in parallel with a capacitor C42, the capacitor C42 is connected in parallel with a capacitor C40, a filter L4 is connected in series with the capacitor C40, the filter L4 is connected in parallel with a capacitor C52, the capacitor C52 is connected in parallel with a capacitor C41, the capacitor C41 is connected to +24V, and the free end of the capacitor C41 is grounded.

2. The remote emergency control circuit according to claim 1, characterized in that: The processor unit comprises U1, and the U1 is connected to P2, a program download port module for downloading programs in a conversion module, and a monitoring module for monitoring and restarting U1.

3. The remote emergency control circuit according to claim 1, characterized in that: The communication signal processing unit includes U3, which is connected to U1 and U5. U3 is an Ethernet physical layer transceiver, and the model of U3 is LAN8720A.

4. The remote emergency control circuit according to claim 1, characterized in that: The conversion module is used to convert a 24V single-channel power supply into a two-channel 24V power supply module, and the conversion module model is PCB_SHAPE.

5. The remote emergency control circuit according to claim 1, characterized in that: The power supply module includes U7, the model of U7 is VRB2405YMD-6WR2, and the low voltage regulator module includes U6, the model of U6 is TL5209DR.

6. The remote emergency control circuit according to claim 1, characterized in that: The diode D2 is MBRA340T3G_3A, the coil L3 is 56u / 7447779156, the coil L6 is 56u / 7447779156, the winding T1 and the winding T2 are both 1SMB24CAT3G, the resistor C42 is 10uF / 50V, the resistor C40 is 1000pF, the filter L4 is ACM70V-701-2PL-TL-00, the resistor C52 is 330uF / 50V, and the resistor C41 is 0.1uF.

7. The remote emergency control circuit according to claim 2, characterized in that: The U1 model is STM32F407ZET6, the P2 is connected to P3, the P2 model is 6100xx243021, the program download port module includes JTAG1, the JTAG1 model is Header 10X2, the monitoring module includes U2, and the U2 model is TPS3828-33DBVT.

8. A controller connected to the main control system of claim 1 and used to control the main control system, characterized in that: The controller comprises: DI isolation output unit; the DI isolation output unit is provided with eight and is divided into two groups, one group of DI isolation output units is connected to the conversion unit, and the other group of DI isolation output units is connected; Power management unit; the power management unit includes U10, the U10 is connected to the DO output optocoupler isolation unit, the DO output optocoupler isolation unit is connected to P3, the U10 is connected to the relay DO output unit, the relay DO output unit is connected to the conversion unit, the U10 is connected to the active DO output unit, and the active DO output unit is connected to the conversion unit.

9. The controller according to claim 8, characterized in that: One end of a group of DI isolation output units is connected to the DI and DO input terminals of the conversion unit, and the other end is connected to P3 for connecting to P1 of U1 and connecting to U1; One end of another group of DI isolation output units is connected to P1 of the conversion unit and P4 of U1, and the other end is connected to P3 of the conversion unit, for connecting to P2 and accessing U1.

10. The controller according to claim 9, characterized in that: The P1 is connected to the indicator light and the reset unit, the P3 is used to connect the conversion unit and U1, and the connection unit model is PCB_SHAPE.

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