A method for self-recovery of faults in operator station of M310 nuclear power main control room

Abstract

The present invention belongs to the technical field of DCS maintenance of nuclear power plants, and specifically relates to a fault self-recovery method for an operator station in a M310 nuclear power main control room. The system management engineer station determines the status of the operator station in the nuclear power main control room by collecting the CPU usage rate, memory usage rate, number of active processes, network delay time, and nuclear power change rate signal data of the operator station in the nuclear power main control room; the system management engineer station sends a report to a text message sending device of an external network of the power plant through a DCS network one-way transmission device; the system management engineer station issues a restart command to the operator station in the faulty nuclear power main control room; the system management engineer station determines whether the operator station in the faulty nuclear power main control room has returned to normal; the system management engineer station sends a device recovery success report to a text message sending device of an external network of the power plant through a DCS network one-way transmission device. The present invention monitors the working status of the operator station in the main control room of a nuclear power unit in real time, and can automatically recover from a downtime fault.

Description

Technical Field

[0001] The invention belongs to the technical field of DCS maintenance of nuclear power plants, and in particular relates to a fault self-recovery method for an operator station in a main control room of an M310 nuclear power plant. Background Art

[0002] Compared with the DCS control system of thermal power units, the DCS control system of nuclear power units has higher reliability, but the level of automation and intelligence is lower. The operator station in the main control room of a nuclear power unit (hereinafter referred to as the OWP operator station) is one of the terminals for the operation commands of the nuclear power DCS control system. Due to the MTBF limit of electronic products, it is difficult to avoid the downtime of the operator station in the main control room of a nuclear power unit during use. At present, when the operator station in the main control room of a nuclear power unit crashes, it can only be manually restored by maintenance personnel. A method is needed to monitor the working status of the operator station in the main control room of a nuclear power unit in real time and automatically restore the downtime, so as to improve the efficiency of maintenance personnel in handling faults of the operator station in the main control room of a nuclear power unit, reduce the unavailability time of the operator station in the main control room of a nuclear power unit, and strengthen the in-depth defense barrier of nuclear safety. Summary of the invention

[0003] The purpose of the present invention is to provide a method for self-recovery of an operator station fault in a main control room of an M310 nuclear power plant, which monitors the working status of an OWP operator station in real time and can automatically recover the downtime of the OWP operator station when the nuclear power change rate is less than 1% of the rated power per hour.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A method for self-recovery of faults in the operator station of the M310 nuclear power main control room.

[0006] S1: The system management engineer station automatically collects CPU usage, memory usage, number of active processes, network delay time and nuclear power change rate signals from the operator station in the nuclear power main control room at intervals;

[0007] S2: The system management engineer station determines the status of the operator station in the nuclear power main control room by collecting the CPU usage rate, memory usage rate, number of active processes, network delay time and nuclear power change rate signal data of the operator station in the nuclear power main control room; if the CPU usage rate is greater than 99%, the memory usage rate is greater than 99%, the number of active processes is less than 10, the network delay time is greater than 5000ms or the nuclear power change rate is less than 1% of the rated power per hour, then enter S3; otherwise, continue to execute S1;

[0008] S3: According to the judgment result in S2, it is confirmed that the operator station in the nuclear power main control room has a fault;

[0009] S4: The system management engineer station sends the report to the power plant external network SMS sending device via the DCS network one-way transmission device in the form of SMS;

[0010] S5: The system management engineer station automatically collects the fault log of the operator station in the faulty nuclear power main control room and saves it to the hard disk of the system management engineer station;

[0011] S6: The system management engineer station sends a restart command to the operator station in the faulty nuclear power main control room;

[0012] S7: The system management engineer station determines whether the operator station in the faulty nuclear power main control room has returned to normal; if the CPU usage rate is less than 90%, the memory usage rate is less than 90%, the number of active processes is greater than 50, the network delay time is greater than 200ms, and the nuclear power change rate is less than 1% of the rated power per hour, then enter S8; otherwise, enter S9;

[0013] S8: The system management engineer station sends a report on successful equipment recovery to the power plant external network SMS sending device via the DCS network one-way transmission device in the form of SMS; enter S1;

[0014] S9: The system management engineer station sends a report on equipment recovery failure via a DCS network one-way transmission device to a text message sending device on the power plant's external network in the form of a text message;

[0015] S10: End.

[0016] The S1 described above: the system management engineer station automatically collects CPU usage, memory usage, number of active processes, network delay time and nuclear power change rate signals of the operator station in the nuclear power main control room at intervals of five minutes.

[0017] The S4: report recipient is a mobile phone of a power plant equipment engineer.

[0018] The S8: report recipient is the mobile phone of a power plant equipment engineer.

[0019] The S9: report recipient is the mobile phone of a power plant equipment engineer.

[0020] The model of the system management engineer station is: HPZ460 3 screens.

[0021] The model of the operator station in the nuclear power main control room is: HPZ460 5 screens.

[0022] The model of the DCS network one-way transmission device is: NARI SysKeeper--2000.

[0023] The model of the power plant external network SMS sending device is: Sinolink SLKM200LTE.

[0024] The system management engineer station, nuclear power main control room operator station, and DCS network one-way transmission device are connected to the switch in a tree structure, and the DCS network one-way transmission device is connected downstream to the power plant external network SMS sending device; switch model: HIRSCHMANN MAR1040.

[0025] The beneficial effects achieved by the present invention are:

[0026] The M310 nuclear power main control room operator station fault self-recovery method monitors the working status of the nuclear power unit main control room operator station in real time and can automatically recover from downtime failures, thereby improving the maintenance personnel's efficiency in handling faults in the nuclear power unit main control room operator station, reducing the unavailability time of the nuclear power unit main control room operator station, and strengthening the nuclear safety defense-in-depth barrier. DETAILED DESCRIPTION

[0027] The present invention is described in detail below with reference to specific embodiments.

[0028] ADACS_N:Advanced data processing and control system for nuclear applications Atos Worldgrid product

[0029] The present invention is applicable to the operator station of the M310 nuclear power main control room of the ADACS_N platform produced by ATOS.

[0030] The model of the system management engineer station is: HPZ460 3 screens

[0031] The model of the operator station in the nuclear power main control room is: HPZ460 5 screens

[0032] The DCS network one-way transmission device model is: NARI SysKeeper--2000

[0033] Switch model: HIRSCHMANN MAR1040

[0034] Power plant external network SMS sending device model: Sinolink SLKM200LTE

[0035] The system management engineer station, the nuclear power main control room operator station, and the DCS network one-way transmission device are connected to the switch in a tree structure, and the DCS network one-way transmission device is connected downstream to the power plant external network SMS sending device.

[0036] S1: The system management engineer station automatically collects CPU usage, memory usage, number of active processes, network delay time and nuclear power change rate signals from the operator station in the nuclear power control room at intervals of five minutes;

[0037] S2: The system management engineer station determines the status of the nuclear power main control room operator station by collecting the CPU usage rate, memory usage rate, number of active processes, network delay time and nuclear power change rate signal data of the nuclear power main control room operator station. If the CPU usage rate is greater than 99%, the memory usage rate is greater than 99%, the number of active processes is less than 10, the network delay time is greater than 5000ms or the nuclear power change rate is less than 1% of the rated power per hour, then enter S3; otherwise, continue to execute S1;

[0038] S3: According to the judgment result in S2, it is confirmed that the operator station in the nuclear power main control room has a fault;

[0039] S4: The system management engineer station sends a report in the form of a text message to the power plant external network text message sending device through the DCS network one-way transmission device, and the report recipient is the mobile phone of the power plant equipment engineer;

[0040] S5: The system management engineer station automatically collects the fault log of the operator station in the faulty nuclear power main control room and saves it to the hard disk of the system management engineer station;

[0041] S6: The system management engineer station sends a restart command to the operator station in the faulty nuclear power main control room;

[0042] S7: The system management engineer station determines whether the operator station of the faulty nuclear power main control room has returned to normal. If the CPU usage is less than 90%, the memory usage is less than 90%, the number of active processes is greater than 50, the network delay time is greater than 200ms, and the nuclear power change rate is less than 1% of the rated power per hour, then enter S8; otherwise, enter S9;

[0043] S8: The system management engineer station sends a successful equipment recovery report to the power plant external network SMS sending device via the DCS network one-way transmission device in the form of a text message. The report recipient is the mobile phone of the power plant equipment engineer; enter S1.

[0044] S9: The system management engineer station sends a device recovery failure report to the power plant external network SMS sending device in the form of a text message through the DCS network one-way transmission device. The report recipient is the mobile phone of the power plant equipment engineer.

[0045] S10: End.

Claims

1. A method for self-recovery of faults in the operator station of the M310 nuclear power main control room, characterized in that: S1: The system management engineer station automatically collects CPU usage, memory usage, number of active processes, network delay time and nuclear power change rate signals from the operator station in the nuclear power main control room at intervals; S2: The system management engineer station determines the status of the operator station in the nuclear power main control room by collecting the CPU usage rate, memory usage rate, number of active processes, network delay time and nuclear power change rate signal data of the operator station in the nuclear power main control room; If the CPU usage is greater than 99%, the memory usage is greater than 99%, the number of active processes is less than 10, the network delay is greater than 5000ms, or the core power change rate is less than 1% of the rated power, then enter S3; otherwise, continue to execute S1; S3: According to the judgment result in S2, it is confirmed that the operator station in the nuclear power main control room has a fault; S4: The system management engineer station sends the report to the power plant external network SMS sending device via the DCS network one-way transmission device in the form of SMS; S5: The system management engineer station automatically collects the fault log of the operator station in the faulty nuclear power main control room and saves it to the hard disk of the system management engineer station; S6: The system management engineer station sends a restart command to the operator station in the faulty nuclear power main control room; S7: The system management engineer station determines whether the operator station in the faulty nuclear power main control room has returned to normal; If the CPU usage is less than 90%, the memory usage is less than 90%, the number of active processes is greater than 50, the network delay is greater than 200ms, and the core power change rate is less than 1% of the rated power, then enter S8; otherwise, enter S9; S8: The system management engineer station sends a report on successful equipment recovery to the power plant external network SMS sending device in the form of SMS via the DCS network one-way transmission device; Enter S1; S9: The system management engineer station sends a report on equipment recovery failure via a DCS network one-way transmission device to a text message sending device on the power plant's external network in the form of a text message; S10: End.

2. The M310 nuclear power main control room operator station fault self-recovery method according to claim 1 is characterized by: The S1 described above: the system management engineer station automatically collects CPU usage, memory usage, number of active processes, network delay time and nuclear power change rate signals of the operator station in the nuclear power main control room at intervals of five minutes.

3. The M310 nuclear power main control room operator station fault self-recovery method according to claim 1 is characterized in that: The S4: report recipient is a mobile phone of a power plant equipment engineer.

4. The M310 nuclear power main control room operator station fault self-recovery method according to claim 1 is characterized by: The S8: report recipient is the mobile phone of a power plant equipment engineer.

5. The M310 nuclear power main control room operator station fault self-recovery method according to claim 1 is characterized by: The S9: report recipient is the mobile phone of a power plant equipment engineer.

6. The M310 nuclear power main control room operator station fault self-recovery method according to claim 1 is characterized by: The model of the system management engineer station is: HPZ460 3 screens.

7. The M310 nuclear power main control room operator station fault self-recovery method according to claim 1 is characterized by: The model of the operator station in the nuclear power main control room is: HPZ460 5 screens.

8. The M310 nuclear power main control room operator station fault self-recovery method according to claim 1 is characterized by: The model of the DCS network one-way transmission device is: NARI SysKeeper--2000.

9. The M310 nuclear power main control room operator station fault self-recovery method according to claim 1 is characterized by: The model of the power plant external network SMS sending device is: Sinolink SLKM200LTE.

10. The M310 nuclear power main control room operator station fault self-recovery method according to claim 1 is characterized by: The system management engineer station, nuclear power main control room operator station, and DCS network one-way transmission device are connected to the switch in a tree structure. The DCS network one-way transmission device is connected downstream to the power plant external network SMS sending device; switch model: HIRSCHMANN MAR1040。