Introduction
1–2
152379 Rev C
Operation Features
The PV100S 100 kW Grid-Tied Photovoltaic Inverter is a UL 1741 listed, utility
interactive, three-phase power conversion system for grid-connected photovoltaic
arrays with a power rating of 100 kW. Designed to be easy to install and operate,
the PV100S automates start-up, shutdown, and fault detection scenarios. With
user-definable power tracking that matches the inverter to the array and adjustable
delay periods, users are able to customize startup and shutdown sequences.
Multiple PV100S inverters are easily paralleled for larger power installations.
The PV100S power conversion system consists of a pulse-width modulated
(PWM) inverter, switch gear for isolation and protection of the connected AC and
DC power sources, and a custom Wye/Wye isolation transformer. Housed in a
rugged NEMA-3R rated, powder-coated steel enclosure, the PV100S incorporates
sophisticated Intellimod
(IPM) Insulated Gate Bipolar Transistors (IGBT’s) as
the main power switching devices. An advanced, field-proven, Maximum Peak
Power Tracker (MPPT) integrated within the PV100S control firmware ensures
the optimum power throughput for harvesting energy from the photovoltaic array.
The advanced design of the PV100S includes an EMI output filter and the main
AC contactor located electrically on the utility side of the isolation transformer.
The location of the main AC contactor, and the ability to de-energize the isolation
transformer during times of non-operation, greatly reduces the night-time tare
losses consumed by an idle isolation transformer. An integrated soft-start circuit
precludes nuisance utility-tie circuit breaker trips as the result of isolation
transformer inrush current.
Additionally, the PV100S integrated controller contains self-protection features
including over and under voltage and frequency safeguards. An integral
anti-island protection scheme prevents the inverter from feeding power to the grid
in the event of a utility outage.
The PV100S includes a local user interface comprised of an O
N
/O
FF
switch,
keypad, and 4-line, 80 character LCD display. A user-friendly Graphic User
Interface (GUI) provides a remote interface for operator interrogation of PV100S
system status, control, metering/data logging and protective functions within the
PV100S. The status, control, and logging features are also supported by the data
modem (included) and can be accessed remotely.
Fixed Unity Power Factor Operation
The Xantrex PV Series of grid-tied inverters maintains unity power factor during
operation. The control software constantly senses utility voltage, and constructs
the output current waveform to match the utility voltage. The PV line of inverters
is not capable of operation without the presence of normal utility voltage, nor is it
capable of varying the output power factor off unity.
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