Utracapacitor Monitor Board; Ultracapacitor Energy Storage User Interface - ABB PCS100 UPS-I User Manual

40 PCS100 UPS-I User Manual
6.1.1

Utracapacitor Monitor Board

Each Ultracapacitor Energy Storage Enclosure (CESE)
includes Ultracapacitor
monitoring all relevant
enclosure:
Status of all Ultracapacitors per string
–
(overvoltage and overtemperature)
Incoming DC voltage
–
DC voltage of each Ultracapacitor string
–
DC circuit breaker status
–
Enclosure internal temperature
–
In case of a fault in any of the Ultracapacitor module or enclosure the Ultracapacitor Monitor Board automatically
takes the appropriate action which may be a warning or if necessary isolate the string with a faulty module. Non-
faulty string operation is not influenced. In any event a warning is issued on the PCS100 UPS-I GDM and service
personnel can determine the cause of the warning from inspection of the Monitoring Board.
The Ultracapacitor Monitor Board includes two levels of HMI for information.
Two Status/Reset lamps on the front door for general information on status of each string
–
Mimic panel and Status LEDs on the Ultracapacitor Monitor Board inside the enclosure give
–
additional information on status of each Ultracapacitor module and complete Energy Storage
Enclosure.
6.1.2

Ultracapacitor Energy Storage User Interface

The Ultracapacitor Monitor Board is primarily used to monitor fault outputs from each Ultracapacitor module in
an enclosure. Two types of faults can be monitored per Ultracapacitor module; overvoltage and overtemperature.
If any of these faults occur, the appropriate breakers are tripped and the string is disengaged from the system
and the fault is communicated to the user.
The enclosure temperature is monitored to warn the user of exceeding the recommended operating temperature,
and for tripping the breakers if the temperature indicates a major failure i.e. over 67 ºC implying a large amount
of heat is being generated (in particular the possibility of a fire).
String voltage vs. DC bus voltage is monitored to prevent breakers being closed when voltage difference is
greater than 30 V, and to indicate when it is safe to close them.
The design approach is that tripping the breakers is to be avoided wherever possible. So if faulty inputs are
detected, a warning is generated and they are rendered unprotected in preference to taking the system off-line.
Faults and warnings are communicated to the user in three ways, in increasing levels of information.
1. Fault/Warning Digital Output:
A relay contact output which informs the downstream master that there is a warning or fault in one
of the enclosure in the system, i.e. requiring investigation.
The PCS100 UPS-I GDM displays warning
2. Status Lamps:
External door lamps identify the enclosure and/or string in question. They convey the type of warning
or fault that has occurred by means of flash sequences.
Monitor Board that
information inside
Status LEDs
is
the
Figure 6-2: Ultracapacitor Monitor Board
Mimic Panel