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Power-Outage Simulation Control Program

IP.com Disclosure Number: IPCOM000036363D
Original Publication Date: 1989-Sep-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 70K

Publishing Venue

IBM

Related People

Sanyshyn, D: AUTHOR

Abstract

A method of reproducing actual recorded and theoretical power line outages through the use of dedicated software and commercially available equipment allows the simulation of power line disturbances. A programmable functional generator is used to amplitude modulate a second generator, then feed it to a power amplifier. The first generator is controlled by a personal computer and its software, permitting the reproduction of any power line condition.

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Power-Outage Simulation Control Program

A method of reproducing actual recorded and theoretical power line outages through the use of dedicated software and commercially available equipment allows the simulation of power line disturbances. A programmable functional generator is used to amplitude modulate a second generator, then feed it to a power amplifier. The first generator is controlled by a personal computer and its software, permitting the reproduction of any power line condition.

As shown in Fig. 1, generator #2 produces a low-level sinewave

(Image Omitted)

which drives a power amplifier. Its output can be amplitude modified to reproduce power-outage conditions. The phase generator was built to generate two phases from the AC output of generator #2. The power amplifier amplifies the sinewaves at a 50:1 gain, bringing it up to the normal AC line voltages. Generator #1 can be programmed at the front panel, or data can be sent over a General-Purpose Interface BUS (GPIB) and stored. Its output is used to drive the amplitude modulation input of generator #2. The first generator's output can be gated into the second generator's "am" input, allowing the outage profile to be imposed on the AC sinewave being generated by generator #2. The power amplifier amplifies the waveform feeding it to the unit under test. The field data gathered by a line monitor is used to demonstrate the principle of power-line- outage simulation. This data is received as a hardcopy printout and must be manually entere...