IP Library › Granted Patent US 10,317,452
Granted Patent B2
US 10,317,452 · App. 15/307,212 · Granted Jun 11, 2019

Testing device, testing method, and program for power system protection control system

Inventor: Shigetoo Oda (Tokyo, JP)
Assignee: MITSUBISHI ELECTRIC CORPORATION
G01R31/027G01R19/2513G01R35/00H02H3/05H02H7/04H02H7/042
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Quick Facts
Patent No.
US 10,317,452
App. No.
15/307,212
Granted
Jun 11, 2019
Kind
B2
Abstract

A testing device tests an intelligent electronic device of a power system. A PC generates failure data by performing: simulation calculation for a CT and a PT with respect to current waveform data of a current transformer and voltage waveform data of a potential transformer based on a characteristic of an instrument transformer; and simulation calculation for an MU with respect to the current waveform data of the current transformer and the voltage waveform data of the potential transformer based on a characteristic of the MU. The testing device acquires device information data indicating a circuit breaker of the power system, in synchronization with the failure data. The testing device transmits the failure data and the device information data to the intelligent electronic device via a process bus in accordance with a setting of outputting data to the process bus and a setting of sampling.

Claims (48)

1. A testing device for testing an intelligent electronic device of a power system, the testing device comprising:

a first acquisition unit configured to acquire failure data resulting from simulation calculation for a CT (Current Transformer) and a PT (Potential Transformer) and simulation calculation for an MU (Merging Unit), the simulation calculation for the CT and the PT being performed with respect to current waveform data and voltage waveform data in the power system based on first characteristic information indicating a characteristic of an instrument transformer, the simulation calculation for the MU being performed with respect to the current waveform data and voltage waveform data in the power system based on second characteristic information indicating a characteristic of the MU;

a second acquisition unit configured to acquire device information data in synchronization with the failure data, the device information data indicating a circuit breaker of the power system;

a storage unit configured to store first setting information and second setting information, the first setting information indicating a setting about current and voltage for outputting data to a process bus, the second setting information indicating a setting of sampling; and

an output unit configured to transmit the acquired failure data and device information data to the intelligent electronic device via the process bus in accordance with the first setting information and the second setting information for operation of the circuit breaker of the power system.

2. The testing device according to claim 1 , wherein

the testing device is connected to an information processing device, and

the acquisition of the failure data by the first acquisition unit includes acquiring the failure data resulting from the simulation calculations by the testing device by (i) performing the simulation calculation for the CT and the PT and the simulation calculation for the MU by the information processing device and (ii) transmitting the failure data to the testing device by the information processing device.

3. The testing device according to claim 1 , wherein

the testing device is connected to an information processing device,

the storage unit is configured to store the second characteristic information indicating the characteristic of the MU, and

the acquisition of the failure data by the first acquisition unit includes acquiring the failure data by (i) performing the simulation calculation for the CT and the PT by the information processing device, (ii) acquiring, from the information processing device by the testing device, data resulting from the simulation calculation for the CT and the PT, and (iii) performing the simulation calculation for the MU with respect to the acquired data based on the second characteristic information.

4. The testing device according to claim 3 , wherein

the testing device is configured to receive the second characteristic information from the information processing device, and store the received second characteristic information into the storage unit.

5. The testing device according to claim 1 , wherein

the testing device is connected to an information processing device,

the testing device is configured to receive the second setting information from the information processing device, and store the received second setting information into the storage unit,

the testing device is configured to receive a synchronization signal from outside, and

the output unit is configured to transmit the failure data and the device information data to the intelligent electronic device in accordance with the second setting information and a timing that is based on the synchronization signal.

6. The testing device according to claim 1 , wherein

the testing device is connected to an information processing device,

the testing device is configured to receive the first setting information from the information processing device, and store the received first setting information into the storage unit, and

the output unit is configured to transmit the failure data and the device information data to the intelligent electronic device in accordance with the first setting information.

7. The testing device according to claim 1 , comprising:

a third acquisition unit configured to acquire a determination value for determining whether or not protection calculation of the intelligent electronic device is normal;

a reception unit configured to receive, from the intelligent electronic device, a result of the protection calculation for the failure data; and

a determination unit configured to determine whether or not the intelligent electronic device is normal, by comparing (i) the received result of the protection calculation for the failure data with (ii) the acquired determination value.

8. The testing device according to claim 7 , wherein

the testing device is connected to a station bus, and

the reception unit is configured to receive the result of the protection calculation for the failure data from the intelligent electronic device via the station bus.

9. The testing device according to claim 7 , wherein

the testing device is connected to the intelligent electronic device via a wire, and

the reception unit includes an isolation circuit, and is configured to acquire the determination value from the intelligent electronic device via the isolation circuit.

10. The testing device according to claim 2 , comprising:

a third acquisition unit configured to acquire a determination value for determining whether or not protection calculation of the intelligent electronic device is normal;

a reception unit configured to receive, from the intelligent electronic device, a result of the protection calculation for the failure data;

a determination unit configured to determine whether or not the intelligent electronic device is normal, by comparing (i) the received result of the protection calculation for the failure data with (ii) the acquired determination value; and

a determination result output unit configured to output a result of the determination made by the determination unit to the information processing device.

11. A testing method for a testing device to test an intelligent electronic device of a power system, the testing device including a storage unit configured to store first setting information and second setting information, the first setting information indicating a setting about current and voltage for outputting data to a process bus, the second setting information indicating a setting of sampling,

the testing method comprising the steps of:

acquiring, by the testing device, failure data resulting from simulation calculation for a CT (Current Transformer) and a PT (Potential Transformer) and simulation calculation for an MU (Merging Unit), the simulation calculation for the CT and the PT being performed with respect to current waveform data and voltage waveform data in the power system based on first characteristic information indicating a characteristic of an instrument transformer, the simulation calculation for the MU being performed with respect to the current waveform data and voltage waveform data in the power system based on second characteristic information indicating a characteristic of the MU;

acquiring, by the testing device, device information data in synchronization with the failure data, the device information data indicating a circuit breaker of the power system; and

transmitting, by the testing device, the acquired failure data and device information data to the intelligent electronic device via the process bus in accordance with the first setting information and the second setting information for operation of the circuit breaker of the power system.

12. A non-transitory computer-readable storage medium storing a program for controlling operation of an information processing device connected to a testing device for testing an intelligent electronic device of a power system, the information processing device including a processor and a memory, the memory being configured to store first characteristic information, second characteristic information, and device information data, the first characteristic information indicating a characteristic of an instrument transformer, the second characteristic information indicating a characteristic of an MU (Merging Unit), the device information data indicating a circuit breaker of the power system,

the program causing the processor to perform the steps of:

performing simulation calculation for a CT (Current Transformer) and a PT (Potential Transformer) with respect to current waveform data and voltage waveform data of the power system based on the first characteristic information;

generating failure data by performing simulation calculation for the MU with respect to data resulting from the simulation calculation for the CT and the PT, based on the second characteristic information; and

transmitting the failure data and the device information data to the testing device for operation of the circuit breaker of the power system.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 27, 2016
From: ODA, SHIGETOO
To: MITSUBISHI ELECTRIC CORPORATION
Reel/Frame 040152/0354 →
Continuity (1)
Related Publication 20170045570A1 · Feb 16, 2017