Transcript Power Monitoring and Control System for NEPTUNE

Power Monitoring and Control
System for NEPTUNE
Ting Chan
Advisor: Chen-Ching Liu
The Goal
The goal of the NEPTUNE project is to establish a regional ocean
observatory in the northeast Pacific Ocean. The Project’s 3,000-km
network of fiber-optic/power cables will encircle and cross the Juan de
Fuca tectonic plate in the northeast Pacific Ocean, an area roughly 500
km by 1,000 km in size.
NEPTUNE POWER
The engineering power system prototype is a parallel power system
utilizing flexible DC/DC power supplies that auto adjust to changing
load conditions with a multi-layered, reliable protection system. The
backbone voltage is 10kV DC, and at each node (30+ locations) power
is delivered to the science users at 400 V and 48 V DC.
Power Monitoring and Control System (PMACS)
The NEPTUNE equivalent of a SCADA and EMS system is called the
Power Monitoring and Control System (PMACS) which gathers system
data and performs functions such as State Estimation, Topology
Identification, and Fault Location.
MARS
The Monterey Accelerated Research System
(MARS) is a cabled-based observatory system,
incorporating a benthic instrument node, AUVs,
and various benthic and moored
instrumentation. The MARS infrastructure will
provide the capability to place and power
instruments in areas of scientific interest in
various geographical sites.
MARS will be located in Monterey Bay offshore
the Monterey Bay Aquarium Research Institute
(MBARI) that will serve as the test bed.
MARS PMACS Components
•PMACS Server – communicates with Node Power Controller and
Shore Power Supply Controller
•PMACS Console – communicates with PMACS server for system data
and performs operations
•PMACS Clients – remote users for monitoring and limited operations
MARS PMACS Console Functionalities
MARS Power System Computer Block Diagram
Node
Converter
10kV Power
Supply
Power
Supply
Controller
Monitored Values
•10KV level voltages and currents (Shore Station and
Science Node)
PMACS
Client
(Local)
•Voltage and current outputs at each of the low voltage bus
(400V, 48V, 12V, 5V)
PMACS
Node
Controller
•Converter status
Shore
Station
Network
Node
Network
Optical
Transport
•Load currents of external and internal loads at different
voltages
Time
Distribution
Node
•Load status of external and internal loads
Shore Station
•Ground fault current of 400V and 48V buses
•Engineering sensors measurements (temperature,
pressure, etc.)
PMACS
Client
(Remote)
UWEE
Network
Internet
MBARI
Network
PMACS
Console
Operations
•Energy Management System (EMS) functions
UW EE
–State Estimation
PMACS
Server
PMACS
Client
(Remote)
Remote User
Remote
Network
–Topology Identification
MBARI Operations Center
–Fault Location
–Load Management
•Load Switching (external and internal)
•Set load current limits
•Ground fault detection and isolation