Xantrex Technology PV-30208 - Manual (Page 4)

SECTION 1
PRODUCT DESCRIPTION
PV-30208 Photovoltaic Inverter
Operation and Maintenance Manual
Copyright 2003, Xantrex Technology Inc.
DOCUMENT: 151315
1-2
Matrix Bus Board
The PV-30208 design makes use of a fully integrated matrix bus board as shown in Figure 1-2. The
bus board assembly is mounted to an aluminum extrusion heatsink, which is mounted between the
upper and lower enclosures. The power electronics is comprised of a three, dual pack IGBT devices,
mounted to the heatsink. The bus board is mounted on top of the IGBT dual pack devices, which is
supported through a series of standoffs attached to the heatsink.
CAUTION
The fuses within the PV-30208 are intended for protecting the PV-30208 control cir-
cuitry only. They are not intended to provide protection for the PV array or external
cabling.
SCU & DSP
Solar Control Unit (SCU)
The SCU consists of an integrated modulator
board and a DSP control board. The modulator
board contains isolated closed loop IGBT PWM
drive circuits, A/C and D/C high voltage mea-
surement circuits, A/C, D/C and ground current
regulation and measurement circuits, A/C
contactor controls, and binary I/O circuitry.
DSP
The DSP board interfaces to the modulator board
through a PC104 interface bus. The DSP board is
designed to the industry standard PC-104 speci-
fication, and is used to perform the majority of
the calculations needed to control the bus board.
The most significant tasks are: control of PV-
30208 electromechanical components and power
electronics converters, signal conditioning (digi-
tal filtering and transformations), and communi-
cation with the operator interface panel and sys-
tem sensors.
INTERCONNECTION STANDARDS COMPLIANCE
The PV-30208 has been tested and certified by Underwriters Laboratories to be in compliance with
UL1741 Static Inverters And Charge Controllers For Use In Photovoltaic Power Systems, as well
as IEEE-929-2000 Recommended Practice For Utility Interface Of Photovoltaic (PV) Systems.
IEEE-929-2000 provides guidance regarding equipment and functions necessary to ensure compatible
operation of photovoltaic systems which are connected in parallel with the electric utility. UL1741 is
the test procedure performed by Underwriters Laboratory on the PV-30208 to verify it meets the rec-
ommendations of IEEE-929-2000. Refer to both documents for details of these recommendations and
test procedures.