Transcript NEPTUNE Power Controller(s) Power Protection Controller

NEPTUNE Power System
Data Acquisition and Communications
Tim McGinnis & Mike Kenney
UW/APL
Power System Controllers
• Protection
– Current Differential Protection
– Distance Relaying Protection
– Pilot Tone Protection
• Power Monitoring and Control System
(PMACS)
Pilot Tone
Protection
Reporting to Shore
Software Updates from Shore
Distance Relaying
Protection
Controller
Current
Differential
Protection
Controller
Power to
Science Loads
= Current Sensor
= Voltage Sensor
Power to
Science Loads
Reporting to Shore
Software Updates from Shore
High Speed Data
Exchange with
Adjacent Nodes
Control Outputs
to Switches
Voltage and Current
Sensor Inputs
Power Monitoring
and Control
System
(PMACS)
Controller
Control from Shore
Data to Shore
Power Controller Requirements
• Very robust and reliable (~ 1 M-hr MTBF)
• Analog inputs for current and voltage sensors
- 2-8 for Protection, ~32 for PMACS
•
•
•
•
Digital outputs for breakers & switches
Accurate absolute time input
Processing
Communications
- Primary Ethernet
- Secondary Serial (RS-232/422/485)
• Upgradeable application code
breaker NA1
-10 kV backbone
VNBackboneA
VNBackboneB
INBackboneA
INBackboneB
VNHSB
for primary feed
for secondary feed
10 kV supply bus
Startup
Supply
breaker NA2
Startup
Supply
breaker NB2
shore station
power supply
10kVDC:400VDC
Converter
10kVDC:400VDC
Converter
INMA
INMB
breaker NA3
bus A - bus B
transfer
switch
VNMA
bus A
Note: M & P =
monitoring and
protection
breaker NB3
VNMB
bus B
INMX
X = 1 to 8
48VDC
Converter
48VDC
Converter
breaker NA4
VNLC
INLX
X = 1 to 8
bus C
breaker NB4
bus C - bus D
transfer
switch
bus D
VNLD
NEPTUNE Power System Communication Requirements
NAME
DESCRIPTION
MAXIMUM
SAMPLE
RAW
RAW +
IP/UDP
PRECISION
LATENCY
RATE
DATA
TIME
DATA
CHANNELS
(bits)
(msec)
(Hz)
(bps)
(bps)
(bps)
Current Differential Protection System
INBackboneA
Backbone Current - A
1
16
1
5000
80000
144000
368000
INBackboneB
Backbone Current - B
1
16
1
5000
80000
144000
368000
INHA
HV current - A
1
16
1
5000
INHB
HV current - B
1
16
1
5000
320000
576000
1472000
Total Current Differential - Type 2 Node
Power Monitoring And Control System
VNBackboneA
Backbone Voltage - A
1
16
1000
1
16
VNBackboneB
Backbone Voltage - B
1
16
1000
1
16
INBackboneA
Backbone Current - A
1
16
1000
1
16
INBackboneB
Backbone Current - B
1
16
1000
1
16
VNHSB
Supply Bus Voltage
1
16
1000
1
16
INMA
MV current - A
1
16
1000
1
16
INMB
MV current - B
1
16
1000
1
16
VNMA
MV voltage - A bus
1
16
1000
1
16
VNMB
MV voltage - B bus
1
16
1000
1
16
INMX (X=1-8)
MV current - loads
8
16
1000
1
128
VNLC
LV-A voltage - C bus
1
16
1000
1
16
VNLD
LV-B voltage - D bus
1
16
1000
1
16
INLX (X=1-8)
LV current - loads
8
16
1000
1
128
M & L ground currents
16
16
1000
1
256
Total PMACS
688
912