Operation method for remotely controlling preset command debugging circuit of high-voltage switch cabinet without power failure

Abstract

The invention relates to the technical field of remote control of high-voltage switch cabinets, and particularly discloses an operation method for remotely controlling a preset command debugging circuit without power failure of a high-voltage switch cabinet, and a comprehensive protection device of the high-voltage switch cabinet is provided with a preset command remote control terminal; the centralized control remote operation end initiates a connection request with the server end, and the server end receives the connection request and establishes connection; after the connection is established, the centralized control remote operation end sends a remote control request message to the server end, and the message comprises transmission reason and transmission direction information; after receiving the remote control request message, the server side executes a corresponding remote control command; confirmation and response: after executing the remote control command, the server side sends a remote control confirmation message to a preset command remote control terminal of the corresponding high-voltage switch cabinet comprehensive protection device; disconnecting, after the remote control operation is completed, the high-voltage switch cabinet comprehensive protection device or the server selects to disconnect, and the communication resources are released; according to the invention, uninterrupted remote control preset debugging of the high-voltage switch cabinet is realized, and personal and equipment operation safety is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of remote control of high-voltage switch cabinets, and particularly relates to an operation method for debugging a circuit of a remote control preset order without power interruption for a high-voltage switch cabinet. Background Art

[0002] The integrated protection device (referred to as "comprehensive protection device") of a high-voltage switch cabinet is a key device in the power system for protecting, monitoring, and controlling high-voltage electrical equipment (such as circuit breakers, transformers, busbars, etc.). It integrates multiple protection functions, measurement, communication, and automation functions to ensure the safe and stable operation of the power system. The existing remote control logic of the centralized control operation equipment in the power system is still based on the control of the power wire itself, such as rapid tripping and remote setting management, lacking the control of protection control signals, and unable to constrain the verification mechanism and timeout mechanism, resulting in inaccurate remote control point tables of the equipment and misoperation of other high-voltage switch cabinets. Therefore, aiming at the problem that the centralized control operation equipment of the company's power system cannot be debugged online, an operation method for debugging a circuit of a remote control preset order without power interruption for a high-voltage switch cabinet is designed. By presetting remote operation terminals in the "comprehensive protection device" of the high-voltage switch cabinet and setting preset points through the input quantity of the internal control loop of the comprehensive protection device, the problems of inaccurate remote control point tables of the existing high-voltage switch cabinets, misoperation, and large potential safety hazards are solved. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide an operation method for debugging a circuit of a remote control preset order without power interruption for a high-voltage switch cabinet.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an operation method for debugging a circuit of a remote control preset order without power interruption for a high-voltage switch cabinet, including the following steps:

[0005] 1) Set a preset order remote control terminal in the comprehensive protection device of the high-voltage switch cabinet;

[0006] 2) Establish a connection: The centralized control remote operation end initiates a connection request to the server end, and the server end accepts the connection request and establishes a connection;

[0007] 3) After establishing the connection, the centralized control remote operation end sends a remote control request message to the server end, and the message contains transmission reason and transmission direction information;

[0008] 4) After receiving the remote control request message, the server end executes the corresponding remote control command;

[0009] 5) Confirmation and response: After the server end executes the remote control command, it sends a remote control confirmation message to the preset order remote control terminal of the corresponding high-voltage switch cabinet comprehensive protection device;

[0010] 6) Disconnect. After the remote control operation is completed, the comprehensive protection device or server of the high-voltage switch cabinet selects to disconnect and release the communication resources.

[0011] Specifically, the centralized control remote operation end in step 2) is the master station, and the preset command remote control terminal of the comprehensive protection device of the high-voltage switch cabinet is the slave station. The slave station is the command execution end, and a remote control return preset command mode is established between the master station and the slave station.

[0012] Specifically, the master station sends a remote control selection command, the slave station receives the command and returns remote control correction, the master station remotely executes the command or cancels the command, and the preset command remote control terminal of the slave station executes or cancels.

[0013] Specifically, only one master station can operate the preset command remote control terminal at the same time. A remote control point of a preset command remote control terminal can only be selected once during the remote control selection process until the remote control is executed or cancelled.

[0014] Specifically, after the remote control selection, the preset command remote control terminal should receive the remote control execution or remote control cancellation command sent by the master station within the specified time. If the command is not received after the timeout, the preset command remote control terminal will automatically cancel this operation and return to the initial state.

[0015] Specifically, after the comprehensive protection device of the high-voltage switch cabinet confirms that it has received the remote control request, it will be lit for on-site debugging confirmation personnel to confirm whether the remote control request is correct. The comprehensive protection device of the high-voltage switch cabinet feeds back the pre-execution information to the centralized control remote operation end for confirmation and then executes the corresponding operation. If the centralized control remote operation end receives a confirmation message that is inconsistent with the sent message, corresponding cancellation operation processing will be carried out.

[0016] Specifically, preset points are set for the input quantities in the comprehensive protection device of the high-voltage switch cabinet. When the remote control instruction is sent, the preset points set by the input quantities in the comprehensive protection device are first used to verify and feedback the correctness and accuracy of the pre-execution information.

[0017] Specifically, the closing power supply end of the input quantity in the comprehensive protection device of the high-voltage switch cabinet is connected to the closing circuit through a relay, and a preset command remote control terminal is set on the line between the closing power supply end and the closing circuit.

[0018] The present invention has the following beneficial effects:

[0019] The operating method of the high-voltage switch cabinet non-power-off remote control preset command debugging circuit designed by the present invention is widely used in the remote control debugging of the high-voltage switch cabinet online in the substation, and through the issuance of the preset command, the preset command message is checked and verified in real time in the comprehensive protection device to realize the remote control point testing of the high-voltage switch cabinet, so as to avoid the equipment from malfunctioning other high-voltage switch cabinets and refusing to move the main body switch cabinet due to inaccurate remote control point table, so as to realize the remote control preset command debugging of the high-voltage switch cabinet without power outage and ensure the safety of personnel and equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A flow chart of the operation method of debugging the circuit of the remote control preset command without power outage for the high-voltage switch cabinet.

[0021] Figure 2 It is the circuit diagram for setting the preset remote control terminal of the comprehensive protection device of the high-voltage switch cabinet.

[0022] Figure 3 It is the actual interface of the centralized control remote operation terminal. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely further describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] like Figures 1 - 3 As shown, a method for operating a circuit of a high-voltage switch cabinet without power outage remote control preset command debugging circuit includes the following steps:

[0025] 1. The comprehensive protection device of the high-voltage switch cabinet is equipped with a preset command remote control terminal to realize remote control preset command debugging of the high-voltage switch cabinet without power outage.

[0026] 2. Establish connection: The centralized control remote operation terminal initiates a connection request with the server, and the server accepts the connection request and establishes a connection.

[0027] 3. After the connection is established, the centralized control remote operation terminal sends a remote control request message to the server, which contains the transmission reason and transmission direction information.

[0028] 4. After receiving the remote control request message, the server executes the corresponding remote control command.

[0029] 5. Confirmation and Response: After the server executes the remote control command, it sends a remote control confirmation message to the preset command remote control terminal of the corresponding comprehensive protection device of the high-voltage switch cabinet. After the comprehensive protection device of the high-voltage switch cabinet confirms the receipt of the remote control request, it will be lit up for on-site commissioning personnel to confirm whether the remote control request is correct. The comprehensive protection device of the high-voltage switch cabinet feeds back the pre-execution information to the centralized control remote operation end for confirmation and then executes the corresponding operation. If the centralized control remote operation end receives a confirmation message that is inconsistent with the sent message, it will perform the corresponding cancellation operation.

[0030] 6. Disconnect the connection. When the remote control operation is completed, the comprehensive protection device of the high-voltage switch cabinet or the server selects to disconnect the connection and release the communication resources.

[0031] As Figure 1 shown, the centralized control remote operation end is the master station, and the preset command remote control terminal of the comprehensive protection device of the high-voltage switch cabinet is set as the slave station. The slave station is the command execution end, and a remote control return preset command mode is established between the master station and the slave station.

[0032] The master station sends a remote control selection command, the slave station receives the command and returns remote control correction, the master station remotely executes the command or cancels the command, and the preset command remote control terminal of the slave station executes or cancels.

[0033] As Figure 2 shown, the preset points are set for the input quantities inside the comprehensive protection device of the high-voltage switch cabinet. When the remote control instruction is sent, it first passes through the preset points set by the input quantities inside the comprehensive protection device to verify and feedback the correctness and accuracy of the pre-execution information, avoiding misoperation of other equipment caused by inaccurate point tables during operation.

[0034] The closing power supply end of the input quantity inside the comprehensive protection device of the high-voltage switch cabinet is connected to the closing circuit through a relay, and a preset command remote control terminal is set on the line between the closing power supply end and the closing circuit.

[0035] As Figure 3 shown, when the centralized control remote control operates, it will first send a preset command. After the comprehensive protection device of the high-voltage switch cabinet receives the preset command, it lights up the screen. The on-site operator can visually confirm whether the point information to be executed is correct. The comprehensive protection device of the high-voltage switch cabinet will also feedback the pre-execution command for verification and comparison with the centralized control remote end. The device will not execute this operation until it is confirmed.

[0036] 1. Remote Control Uniqueness and Mutex:

[0037] Only one master station can operate on the preset command remote control terminal at the same time, that is, only one master station is allowed to operate on the same remote control point at the same time. A remote control point can only be selected once during the remote control selection process until the remote control is executed or cancelled.

[0038] 2. Timeout Mechanism:

[0039] After remote control selection, the pre-set remote control terminal should receive the remote control execution or cancellation command sent by the master station within the specified time. If the command is not received after the timeout, the pre-set remote control terminal will automatically cancel this operation and return to the initial state.

[0040] Through strict verification mechanisms, timeout mechanisms, uniqueness constraints and other measures, the accuracy and safety of remote control operations are ensured.

[0041] By presetting remote operation terminals in the "comprehensive protection device" of the high-voltage switch cabinet and setting preset points through the input quantity of the internal control loop of the comprehensive protection device. After the remote control instruction of the high-voltage switch cabinet is sent, first view the remote control point table through the centralized control system, view the remote control pre-set command message through the comprehensive protection device, and feedback the received message information through communication. After verifying the received message with the centralized control remote operation message correctly, then execute it to ensure that the device switch action information is consistent with the sent pre-set command signal.

[0042] The present invention is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

[0043] The technologies, shapes and structures not described in detail in the present invention are all well-known technologies.

Claims

1. An operating method for a debugging circuit of a remote control preset order without power interruption in a high-voltage switchgear, characterized in that, It includes the following steps: 1) Set the preset remote control terminal for the comprehensive protection device of the high-voltage switchgear cabinet; 2) Establish a connection: The centralized control remote operation terminal initiates a connection request to the server terminal, and the server terminal accepts the connection request and establishes a connection; 3) After establishing the connection, the centralized control remote operation terminal sends a remote control request message to the server terminal, and the message contains transmission reason and transmission direction information; 4) After receiving the remote control request message, the server terminal executes the corresponding remote control command; 5) Confirmation and response: After the server terminal executes the remote control command, it sends a remote control confirmation message to the preset remote control terminal of the corresponding high-voltage switchgear cabinet comprehensive protection device; 6) Disconnect the connection. When the remote control operation is completed, the high-voltage switchgear cabinet comprehensive protection device or the server selects to disconnect the connection and release the communication resources.

2. The operating method of the debugging circuit for remotely and remotely pre-setting commands of a high-voltage switchgear without power outage according to claim 1, characterized in that In step 2), the centralized control remote operation terminal is the master station, and the preset remote control terminal set for the comprehensive protection device of the high-voltage switchgear cabinet is the slave station. The slave station is the command execution end, and a remote control return preset order mode is established between the master station and the slave station.

3. The operating method of the debugging circuit for remotely and remotely controlling the preset order of the high-voltage switchgear without power interruption according to claim 2, characterized in that, The master station sends a remote control selection command, the slave station receives the command and returns remote control correction, the master station remotely executes the command or cancels the command, and the preset remote control terminal of the slave station executes or cancels.

4. The operating method of the debugging circuit for remotely and remotely pre-setting commands of a high-voltage switchgear without power interruption according to claim 2, characterized in that, The preset remote control terminal is only operated by one master station at the same time, and a remote control point of a preset remote control terminal can only be selected once during the remote control selection process until the remote control is executed or cancelled.

5. The operating method of the debugging circuit for remotely and remotely pre-setting commands without power interruption of the high-voltage switchgear according to claim 4, characterized in that, After the remote control selection, the preset remote control terminal should receive the remote control execution or remote control cancellation command issued by the master station within the specified time. If the command is not received after the timeout, the preset remote control terminal will automatically cancel the current operation and restore to the initial state.

6. The operating method of the debugging circuit for remotely and remotely pre-setting commands without power interruption of the high-voltage switchgear according to claim 1, characterized in that, After the high-voltage switchgear cabinet comprehensive protection device in step 5) confirms receiving the remote control request, it will be lit up for on-site debugging confirmation personnel to confirm whether the remote control request is correct. The high-voltage switchgear cabinet comprehensive protection device feeds back the pre-execution information to the centralized control remote operation terminal for confirmation and then executes the corresponding operation. If the centralized control remote operation terminal receives that the confirmation message is inconsistent with the sent message, corresponding cancellation operation processing will be carried out.

7. The operating method of the debugging circuit for remotely and remotely pre-setting commands without power interruption of the high-voltage switchgear according to claim 6, characterized in that, The preset point is set for the input quantity in the high-voltage switchgear cabinet comprehensive protection device. When the remote control instruction is issued, it first passes through the preset point set by the input quantity in the comprehensive protection device to verify and feedback the correctness and accuracy of the pre-execution information.

8. The operating method of the debugging circuit for remotely and remotely controlling the preset order of the high-voltage switchgear without power interruption, as claimed in claim 7, wherein The closing power consumption end of the input quantity in the high-voltage switchgear cabinet comprehensive protection device is connected to the closing circuit through a relay, and a preset remote control terminal is set on the line between the closing power consumption end and the closing circuit.

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