Optically triggered high voltage switch network and method for switching a high voltage
- Renton, WA
- Everett, WA
- Mountlake Terrace, WA
An optically triggered solid state switch and method for switching a high voltage electrical current. A plurality of solid state switches (350) are connected in series for controlling electrical current flow between a compensation capacitor (112) and ground in a reactive power compensator (50, 50') that monitors the voltage and current flowing through each of three distribution lines (52a, 52b and 52c), which are supplying three-phase power to one or more inductive loads. An optical transmitter (100) controlled by the reactive power compensation system produces light pulses that are conveyed over optical fibers (102) to a switch driver (110') that includes a plurality of series connected optical triger circuits (288). Each of the optical trigger circuits controls a pair of the solid state switches and includes a plurality of series connected resistors (294, 326, 330, and 334) that equalize or balance the potential across the plurality of trigger circuits. The trigger circuits are connected to one of the distribution lines through a trigger capacitor (340). In each switch driver, the light signals activate a phototransistor (300) so that an electrical current flows from one of the energy reservoir capacitors through a pulse transformer (306) in the trigger circuit, producing gate signals that turn on the pair of serially connected solid state switches (350).
- Research Organization:
- University of Washington
- DOE Contract Number:
- AI79-87BP65584
- Assignee:
- Board of Regents of University of Washington (Seattle, WA)
- Patent Number(s):
- US 5180963
- Application Number:
- 07/697,673
- OSTI ID:
- 868639
- Country of Publication:
- United States
- Language:
- English
Similar Records
Reactive Power Compensator.
Compact high voltage solid state switch
Related Subjects
100
102
110
112
288
294
300
306
326
330
334
340
350
50
52a
52b
52c
activate
balance
capacitor
capacitors
circuit
circuits
compensation
compensator
connected
connected solid
controlled
controlling
controls
conveyed
current
current flow
current flowing
current flows
distribution
distribution line
distribution lines
driver
electrical
electrical current
energy
equalize
fibers
flow
flowing
flows
gate
ground
inductive
inductive load
inductive loads
light
light pulse
light pulses
light signal
light signals
lines
loads
method
monitors
network
optical
optical fiber
optical fibers
optical transmitter
optically
optically triggered
pair
phase power
phototransistor
plurality
potential
power
power compensation
power compensator
produces
producing
pulse
pulse transformer
pulses
reactive
reactive power
reservoir
resistors
serially
serially connected
series
series connected
signals
solid
supplying
switch
switches
switching
three-phase
transformer
transmitter
triger
trigger
trigger circuit
triggered
voltage
voltage electric
voltage electrical
voltage switch