Direct-current deicing equipment control device with double controllers

Abstract

The utility model discloses a direct current deicing equipment control device with double controllers, which is provided with a first controller, a second controller and a touch screen, and controls a main controller to generate a pulse angle of a valve body through the first controller and the second controller, so that the valve body can be effectively controlled to carry out alternating current rectification, and the control efficiency is improved. The power transmission line ice melting method comprises the following steps: setting a first controller and a second controller to be connected with a touch screen, setting the first controller and the second controller to be in communication connection with each other, when one of the controllers crashes, the other controller captures the control right immediately, and the power transmission line is subjected to ice melting through the direct-current voltage and the direct-current current, so that the power transmission line is subjected to ice melting through the direct-current voltage and the direct-current current. According to the technical scheme, the fault controller is removed, normal operation of ice melting operation is guaranteed, a controller damage alarm is sent to the touch screen, timely maintenance is carried out after ice melting is finished, and the defects that in the prior art, the ice melting effect is poor and power grid equipment is damaged due to the fact that direct-current ice melting equipment uses a single controller are effectively overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of direct current ice-melting equipment control devices, in particular to a direct current ice-melting equipment control device with dual controllers. Background Art

[0002] The weather is cold in winter, especially when cold air continues for a period of time, the power transmission lines will be seriously covered with ice, which will cause the power grid to be paralyzed, the factory to stop working, and cause unpredictable economic losses. In order to avoid such a situation, the existing technology will use DC ice melting equipment to melt the ice, thereby preventing the power transmission lines from being covered with ice. However, most of the DC ice melting equipment currently uses a single controller mode. Due to the complex electromagnetic environment of the power plant and the harsh working conditions, the controller freezes or crashes in the working state. If the operator cannot find the controller failure in time, the DC ice melting equipment will be shut down, and the purpose of melting ice will not be achieved. In severe cases, it will cause irreversible damage to the power grid equipment. Utility Model Content

[0003] In view of this, the utility model proposes a DC ice melting equipment control device with dual controllers, which can solve the defects of the prior art that the DC ice melting equipment uses a single controller, resulting in poor ice melting effect and damage to power grid equipment.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A direct current ice melting equipment control device with dual controllers includes a first controller, a second controller, a main controller and a touch screen, wherein the first controller and the second controller are used to control the main controller to generate a pulse angle of a valve body, the first controller and the second controller are respectively connected to the main controller, the first controller and the second controller are respectively connected to the touch screen, and the first controller and the second controller are connected to each other for communication.

[0006] As a further optional scheme for the DC ice melting equipment control device with dual controllers, the first controller includes a first circuit board, a first power supply module arranged on the first circuit board, a sampling module, a signal input and output module and a control module, the first power supply module is used to provide working voltage for the sampling module, the signal input and output module and the control module, the sampling module is used to collect fault information of the second controller, the signal input and output module is used to realize signal input and output, and the control module is used to generate a control signal.

[0007] As a further optional solution for the DC ice melting equipment control device with dual controllers, the main controller includes a second circuit board, a light input and light output module and a phase control module arranged on the second circuit board, the phase control module is used to generate a pulse angle of the valve body and receive an error signal fed back by the valve body, and the light input and light output module is used to drive the valve body.

[0008] As a further optional solution of the DC ice melting equipment control device with dual controllers, the first power supply module includes a power supply chip and its peripheral circuits.

[0009] As a further optional solution of the DC ice melting equipment control device with dual controllers, the sampling module includes an operational amplifier and its peripheral circuits.

[0010] As a further optional solution of the DC ice melting equipment control device with dual controllers, the signal input and output module includes an IO chip and its peripheral circuits.

[0011] As a further optional solution of the DC ice melting equipment control device with dual controllers, the control module includes a DSP chip and its peripheral circuits.

[0012] The beneficial effects of the utility model are as follows: by setting a first controller, a second controller and a touch screen, and controlling the main controller to generate a pulse angle of a valve body through the first controller and the second controller, the valve body can be effectively controlled to perform alternating current rectification to form a DC voltage and current with adjustable size, thereby realizing DC ice melting for the transmission line; at the same time, by setting the first controller and the second controller to be connected to the touch screen respectively, the first controller and the second controller are communicated with each other, and when one of the controllers crashes or shuts down, the other controller immediately takes control and cuts off the faulty controller to ensure the normal operation of the ice melting operation, and sends a controller damage alarm to the touch screen, and performs timely maintenance after the ice melting is completed, thereby effectively solving the defects of the prior art that the DC ice melting equipment uses a single controller, resulting in poor ice melting effect and damage to power grid equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the composition of a DC ice melting equipment control device with dual controllers according to the utility model;

[0015] Figure 2 It is a circuit diagram of a first power supply module in a DC ice melting equipment control device with dual controllers according to the utility model;

[0016] Figure 3 It is a circuit diagram of a sampling module in a DC ice melting equipment control device with dual controllers according to the utility model;

[0017] Figure 4 It is a circuit diagram of a signal input and output module in a DC ice melting equipment control device with dual controllers according to the utility model;

[0018] Figure 5 The utility model is a circuit diagram of a control module in a DC ice melting equipment control device with dual controllers. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] refer to Figure 1-5 A DC ice melting equipment control device with dual controllers includes a first controller, a second controller, a main controller and a touch screen, wherein the first controller and the second controller are used to control the pulse angle of the valve body generated by the main controller, the first controller and the second controller are respectively connected to the main controller, the first controller and the second controller are respectively connected to the touch screen, and the first controller and the second controller are communicated with each other.

[0021] In this embodiment, by setting a first controller, a second controller and a touch screen, and controlling the main controller to generate a pulse angle of the valve body through the first controller and the second controller, the valve body can be effectively controlled to perform AC rectification to form an adjustable DC voltage and current, thereby realizing DC ice melting for the transmission line. At the same time, by setting the first controller and the second controller to be connected to the touch screen respectively, the first controller and the second controller are communicated with each other. When one of the controllers crashes, the other controller immediately takes control and cuts off the faulty controller to ensure the normal operation of the ice melting operation, and sends a controller damage alarm to the touch screen. Timely maintenance is performed after the ice melting is completed, thereby effectively solving the defects of the prior art that the DC ice melting equipment uses a single controller, resulting in poor ice melting effect and damage to power grid equipment.

[0022] It should be noted that the first controller and the second controller are in a master-slave relationship with each other; both can be connected to the main controller through optical fiber and control the main controller to generate a pulse angle of the valve body, control the valve body, perform AC rectification, form an adjustable DC voltage and current, and realize DC ice melting for the transmission line;

[0023] If the first controller fails, the second controller can cut off the first controller from the control device and ensure that the DC ice melting continues to work normally;

[0024] The second controller transmits the damage status of the failed first controller to the touch screen through the 485 bus to alarm, and informs the operator to inspect and replace the equipment after the ice melting is completed;

[0025] Alternatively, if the second controller fails, the first controller can cut off the second controller from the system and ensure that the DC ice melting operation continues normally;

[0026] The first controller transmits the damage condition of the failed second controller to the touch screen through the 485 bus to alarm, and informs the operator to inspect and replace the equipment after the ice melting is completed.

[0027] In addition, the main controller adopts a VBE controller.

[0028] Preferably, the first controller includes a first circuit board, a first power supply module arranged on the first circuit board, a sampling module, a signal input and output module and a control module, the first power supply module is used to provide working voltage for the sampling module, the signal input and output module and the control module, the sampling module is used to collect fault information of the second controller, the signal input and output module is used to realize signal input and output, and the control module is used to generate a control signal.

[0029] In this embodiment, the first power module, the sampling module, the signal input and output module and the control module are plugged into the first circuit board using European-style terminals to form a first controller, wherein:

[0030] The function of the first power supply module is to provide a stable power supply for the sampling module, the signal input and output module and the control module through the connection of the first circuit board;

[0031] The sampling module is used to sample the voltage, current, wind speed, wind pressure and other parameters in the ice melting system, and then transmit the data to the control module through the first circuit board for fault diagnosis and corresponding protection actions to ensure stable operation of the system;

[0032] The function of the control module is to perform fault judgment;

[0033] The signal input and output module is mainly used for input and output of signals. Under the control of the control module, the control signal is sent to the signal input and output module through the first circuit board to realize real-time and accurate control of external devices.

[0034] The second controller and the first controller have exactly the same structure.

[0035] Preferably, the main controller includes a second circuit board, a second power supply module, a light input and light output module and a phase control module arranged on the second circuit board, the phase control module is used to generate a pulse angle of the valve body and receive an error signal fed back by the valve body, the light input and light output module is used to drive the valve body, and the second power supply module is used to provide working voltage for the light input and light output module and the phase control module.

[0036] In this embodiment, the phase-controlled module is a phase-controlled reactor, and the light-input and light-output module is a light-input and light-output panel.

[0037] Preferably, the first power module includes a power chip and its peripheral circuits.

[0038] Preferably, the sampling module includes an operational amplifier and its peripheral circuits.

[0039] Preferably, the signal input and output module includes an IO chip and its peripheral circuits.

[0040] Preferably, the control module includes a DSP chip and its peripheral circuits.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A DC ice melting equipment control device with dual controllers, characterized in that: It includes a first controller, a second controller, a main controller and a touch screen. The first controller and the second controller are used to control the main controller to generate a pulse angle of a valve body. The first controller and the second controller are respectively connected to the main controller. The first controller and the second controller are respectively connected to the touch screen. The first controller and the second controller are connected to each other for communication.

2. A DC ice melting equipment control device with dual controllers according to claim 1, characterized in that: The first controller includes a first circuit board, a first power supply module, a sampling module, a signal input and output module and a control module arranged on the first circuit board. The first power supply module is used to provide working voltage for the sampling module, the signal input and output module and the control module. The sampling module is used to collect fault information of the second controller. The signal input and output module is used to realize signal input and output. The control module is used to generate a control signal.

3. A DC ice melting equipment control device with dual controllers according to claim 2, characterized in that: The main controller includes a second circuit board, a light input and light output module and a phase control module arranged on the second circuit board, the phase control module is used to generate a pulse angle of the valve body and receive an error signal fed back by the valve body, and the light input and light output module is used to drive the valve body.

4. A DC ice melting equipment control device with dual controllers according to claim 3, characterized in that: The first power module includes a power chip and its peripheral circuits.

5. A DC ice melting equipment control device with dual controllers according to claim 4, characterized in that: The sampling module includes an operational amplifier and its peripheral circuits.

6. A DC ice melting equipment control device with dual controllers according to claim 5, characterized in that: The signal input and output module includes an IO chip and its peripheral circuits.

7. A DC ice melting equipment control device with dual controllers according to claim 6, characterized in that: The control module includes a DSP chip and its peripheral circuits.

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