Title :
A new pole slipping protection algorithm for dispersed storage and generation using the equal area criterion
Author :
Redfern, M.A. ; Checkfield, M.J.
Author_Institution :
Sch. of Electron. & Electr. Eng., Bath Univ., UK
fDate :
1/1/1995 12:00:00 AM
Abstract :
The probability of pole slipping of dispersed storage and generation (DSG) synchronous machines is being viewed with concern, since this can damage the machine as well as promote power system instability. This is particularly the case for small and medium sized machines because their low inertia and high resistance make them inherently more unstable. Research has therefore been directed into new techniques for detecting pole slipping and the formulation of protection algorithms which can be included into an integrated microcomputer based protection scheme for these generators. This paper describes a method for detecting pole slipping using power measurements taken at the generator´s terminals. This technique has been shown to correctly detect pole slipping using both computer simulation and a laboratory model power system. The algorithm remains stable for recoverable swing conditions and power system faults
Keywords :
digital simulation; electric power generation; electrical faults; machine protection; microcomputer applications; power system analysis computing; power system control; power system protection; power system stability; synchronous generators; computer simulation; dispersed generation; dispersed storage; equal area criterion; inertia; laboratory model; microcomputer; pole slipping protection algorithm; power measurements; power system faults; power system instability; protection algorithms; recoverable swing conditions; resistance; synchronous machines; Computer simulation; Distributed power generation; Microcomputers; Power generation; Power measurement; Power system faults; Power system modeling; Power system protection; Synchronous generators; Synchronous machines;
Journal_Title :
Power Delivery, IEEE Transactions on