Multiprocessor based generator module for a real-time power system simulator

Journal Article · Mon Oct 31 23:00:00 EST 1988 · IEEE Trans. Power Syst.; (United States)

DOI:https://doi.org/10.1109/59.192974· OSTI ID:6495689

Kokai, Y; Matori, I; Kawakami, J ^[1]

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1. Hitachi Research Lab., Hitachi, Ltd. (JP)

A new generator simulation module was developed for an electrical power system simulator. This simulator is on an analog simultaneous base. Therefore the module has to simulate a generator behavior precisely. Furthermore, it is required to be able to use the analog simulator as easily as an off-line simulation program. To meet the requirement, the developed generator module adopts a multiprocessor consisting of microprocessors and an analog three-phase sinusoidal oscillator. Any type of generator can be easily simulated only by changing the program of the microprocessors. However, the accuracy of this module depends on the simulation time interval since this module simulates the behavior of a generator digitally. To make the simulation time interval small enough for the analog simultaneous base, four microprocessors solve differential equations representing the generator dynamics in parallel, and floating point arithmetic is used to avoid numerical errors. A parallel processing method for the multiprocessor to solve the differential equations is described. The accuracy of the generator module is validated by comparisons with the off-line simulation program EMTP (Electro Magnetic Transients Program).

• OSTI ID: 6495689
• Journal Information: IEEE Trans. Power Syst.; (United States), Journal Name: IEEE Trans. Power Syst.; (United States) Vol. 3:4; ISSN ITPSE
• Country of Publication: United States
• Language: English

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ANALOG SYSTEMS
ARRAY PROCESSORS
COMPUTERIZED CONTROL SYSTEMS
COMPUTERIZED SIMULATION
COMPUTERS
CONTROL SYSTEMS
DIFFERENTIAL EQUATIONS
DYNAMIC LOADS
ELECTRIC GENERATORS
ELECTRICAL TRANSIENTS
ELECTRONIC CIRCUITS
ENERGY SYSTEMS
EQUATIONS
FUNCTIONAL MODELS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
PARALLEL PROCESSING
POWER SYSTEMS
PROGRAMMING
SIMULATION
SIMULATORS
TRANSIENTS
VOLTAGE DROP