Real-time software testing for microprocessor-based protective relays

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.311164· OSTI ID:7054495

Santoso, N I; Avins, J Y ^[1]

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1. Siemens Corporate Research Inc., Princeton, NJ (United States)

This paper describes a new practical method, domain-partition boundary method with software probes, and test platform for testing real-time software embedded in protective relays. The test scheme automatically and efficiently exercises all functions of a relay in all of its operating domains, especially in the error-prone domains. While the test-case generation methodology belongs to the function-test class, it uses knowledge of the software modularity, and takes into consideration system specification and behavior, critical parameter boundary values and software flow in generating the test specification. TSL is used for managing the test-case generation process, and avoids redundancy. A microcomputer test platform was designed and assembled. It is a simulator which produces voltage or current levels that correspond to events in the system. A control program manages the overall process, including test case generation, wave-form production, process timing, event identification, data collection and result comparison. An implementation of the test scheme is described. Actual testing was conducted on a motor control and overload protection device for verifying its functions, but the test scheme is applicable to other microprocessor-based devices.

• OSTI ID: 7054495
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 9:3; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240201* -- Power System Networks
Transmission & Distribution-- AC Systems-- (1990-)
COMPUTERIZED SIMULATION
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
PERFORMANCE TESTING
POWER SYSTEMS
RELAYS
SIMULATION
TESTING