YASKAWA ACS-500 Manual de usuario
ACS-500 AC-COUPLED
STORAGE SYSTEM
User’s Manual
Yaskawa Solectria Solar DOCR-071070 Page 2of 30
Contents
1. IMPORTANT SAFETY INSTRUCTIONS............................................................................................... 3
Hazard Symbols ....................................................................................................................... 4
Symbols on Labels.................................................................................................................... 5
2. SYSTEM OVERVIEW......................................................................................................................... 6
3. INSTALLATION................................................................................................................................. 8
Delivery ................................................................................................................................... 8
Placement and Anchoring........................................................................................................ 8
AC Wiring................................................................................................................................. 9
DC Wiring of the DC Bus De-Combiner................................................................................... 14
3.4.1 Fastening Lugs to the Studs ............................................................................................ 17
Precautions for Aluminum Wire............................................................................................. 19
Conduit Connections.............................................................................................................. 20
Heila PMC Communications (option) ..................................................................................... 21
Connection to the Internet .................................................................................................... 21
4. System Operation ......................................................................................................................... 22
Initial Commissioning Procedure............................................................................................ 22
System OFF Procedure........................................................................................................... 23
System ON Procedure............................................................................................................ 23
System Configuration............................................................................................................. 24
4.4.1 Defining the Maximum and the Minimum Battery Operational Voltage.......................... 24
4.4.2 Constant communication between PMC and inverters ................................................... 24
Control of Active Power......................................................................................................... 25
4.5.1 Active Power Limit.......................................................................................................... 25
4.5.2 Volt-Watt configuration.................................................................................................. 25
4.5.3 Frequency-Watt configuration........................................................................................ 26
Control of Reactive Power ..................................................................................................... 27
4.6.1 Method 1: Volt-VAr configuration................................................................................... 27
4.6.2 Method 2: Constant Power Factor Configuration............................................................ 28
4.6.3 Method 3: Constant Reactive Power configuration......................................................... 28
5. Specifications................................................................................................................................ 29
6. WARRANTY & RMA INSTRUCTIONS............................................................................................... 29
8. APPENDICES.................................................................................................................................. 30
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1. IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions for model:
ACS-500
The SOLECTRIA ACS 500 AC-Coupled Storage System comprises a factory- integrated set of US-
manufactured and factory-integrated components that form the core of the system: 3 XGI 1500
Inverters, DCB1500-500 DC Bus De-Combiner, ACC1500-500 AC Combiner, and the Plant Master
Controller (PMC). The storage system is complete with the addition of customer-selected
battery system with enclosure, safety elements and controls.
This manual provides instructions for the operation of the ACS-500 AC Coupled Storage System.
In addition, please read all instructions and warnings for the associated component equipment
in their respective manuals.
This manual contains important instructions for operation of the ACS-500 AC-Coupled Storage
System. To reduce the risk of electrical shock and to ensure the safe operation of the system,
the following safety symbols are used to indicate dangerous conditions and important safety
instructions.
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Hazard Symbols
DANGER
Indicates a hazardous situation, which, if not avoided, will result in death or serious injury.
WARNING
Indicates a hazardous situation, which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a hazardous situation, which, if not avoided, could result in minor or moderate injury.
NOTICE!
Indicates a hazardous condition, which, if not avoided, could result in property damage.
INFO ✔
Indicates important supplementary information to use the product effectively.
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Symbols on Labels
Table 1-1 Explanation of Symbols on Labels
SYMBOL
DESCRIPTION
DC Signal
AC Signal
Equipment Ground
Phase
Off
On
Positive Connection Point Symbol
Negative Connection Point Symbol
Refer to Operating Instructions
Instructions for Qualified Personnel Only
Caution: Risk of Electric Shock
Do not remove cover until 5 minutes after disconnecting all supply sources
Caution: Risk of Electric Shock
Timed Discharge
Caution: Hot Surface
Do Not Touch
Warning: Hazardous voltage area under plastic cover. Do not open fuse holders
under load. Proper PPE must be used while accessing fuses. For continued
protection against risk of fire, replace only with same make and type of fuse.
Information: For more information, please see the installation and operations
manual
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2. SYSTEM OVERVIEW
Figure 2-1 ACS-500 System Overview
The ACS-500 system is a redundant, modular energy storage solution that can be AC coupled with other
generators, such as PV or wind. The ACS-500 system comes mounted on a rack and pre-wired from the
factory. The ACS-500 can input or output 500kW and absorb or supply 300kVAr in up to 40C ambient
temperature, controlled through the pre-programmed Plant Master Controller. It can be paired with any
battery type with an equal DC voltage window. Please contact Yaskawa Solectria Solar application
engineering to verify that the voltage window of your battery and that of the ACS-500 match.
The ACS-500 system comprises 4 parts:
DC Bus De-Combiner
AC Combiner
Heila PMC (optional)
Three (3) XGI 1500–166/166-3S 166kW storage-ready inverters
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Figure 2-2 ACS-500 System Components
The customer connects the positive and negative connection of the battery system to the common bus
bars in the DC Bus De-Combiner. The DC Bus De-Combiner connects the DC to the three inverters with
the appropriate fusing. See the Chapter on DC wiring for more details.
The AC Combiner connects the AC output of the three inverters together with the appropriate fusing.
The customer connects the grounded low-voltage side of the MV transformer to bus bars in the AC
combiner. See the Chapter on AC wiring for more details.
The Heila Edge PMC controls the flow of active and reactive power through the three inverters and
monitors the state of charge (SOC) of the battery through MODBUS TCP/IP messaging. The Heila Edge
PMC draws its supply power from a 346V/120V single phase transformer and is protected by a UPS, to
be able to communicate with the ACS-500 system and the battery in case of a power outage. For more
information consult the Heila Edge PMC manual and the Chapter on Communications.
The three Solectria XGI 1500-166/166-3S inverters control the second-to-second conversion of DC power
to AC power and vice-versa. They are connected in a parent-child topology though CAN bus, where the
children follow the parent’s set points instantaneously. The system is arranged in a fully redundant
fashion; when one inverter encounters a problem the two others continue operating and take over its
load, until a repair has taken place.
ANCHOR HOLE 4X
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3. INSTALLATION
Delivery
Check for Damage: Yaskawa Solectria Solar thoroughly inspects and rigorously tests all rack-mounted
components in the ACS-500 AC-Coupled Storage System before shipment. On rare occasions damage
may occur during shipping. Upon receipt of the ACS-500 system, please do the following:
Inspect all ACS-500 system as received, pre-mounted and pre-wired on the rack.
If damage is observed, take digital photos to document the damage and immediately report the
damage to the shipping company.
If the recipient has any question about the potential shipping damage, contact Yaskawa Solectria
Solar (see Section 6 for contact information).
If Yaskawa Solectria Solar determines that any component of the ACS-500 needs to be returned,
obtain an RMA number from Yaskawa Solectria Solar and instructions for returning the unit.
Placement and Anchoring
To anchor the ACS-500 to a concrete pad, secure anchor bolts at the four anchoring provisions located
at the ends of the horizontal support bars. These anchor points have an internal diameter opening of 1”
(see Figure 2-2 ACS-500 System Components).Failure to secure the rack with anchoring bolts will render
the warranty of the ACS-500 void.
Please refer to the following installation diagram for anchoring point locations and customer conduit
locations:
Figure 3-1: Installation Diagram showing Areas Available (shaded) for Conduit
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AC Wiring
All AC Wiring is completed at the factory, within the ACC-1500-500 AC combiner box that is pre-mounted
to the ACS-500 rack.
STEP 1: Confirm that all wiring and associated components are de-energized
Confirm that the AC switch on the AC Combiner is in the OFF position.
Confirm that the AC switch on the XGI 1500 inverters (on the rack with other equipment in the
ACS-500 AC-Coupled Storage system) are in the OFF position (Fig 4.1).
Confirm there is no voltage at the terminals for the XGI 1500 inverters’ AC output conductors in
the ACC1500-500 AC Combiner.
Figure 3-2: Rotate the XGI 1500 Inverter AC Disconnect to the “Off” position
DANGER
Electric Shock Hazard: Components with hazardous voltage and energy will electrocute operator.
Operator shall avoid touching live components with hazardous voltage and energy. Verify the absence
of voltage using an appropriately rated multimeter.
STEP 2: Prepare the Enclosure for Conduits
Note the target area for conduit connections for the combined AC Output Circuit, in the conduit
installation diagram. Only the shaded area indicated should be used.
Add the holes for the conduit and fittings to the shaded area of the bottom of the AC combiner.
The AC combiner provides adequate space for 2” – 3” conduits for the 3-phase 600VAC
conductors.
Remove all metal shavings and debris from the inside of the AC Combiner.
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WARNING
Remove all metal shavings and debris from the inside of the ACC1500-500 AC Combiner enclosure.
Figure 3-3: Interior of the ACC1500-500 AC Combiner
Figure 3-4 Bottom of the ACC1500-500 AC Combiner Showing Area Available for Conduit (shaded)
200A 600VAC Fuses, TYPE J, for ΦA,
Φb, Φc, from 3 inverters
ϕ
A
ϕ
B
ϕ
C
HINGED
COVER
600A 600VAC FUSES, TYPE J, for
ΦA, Φb, Φc, combined output
from 3 inverters
DUAL BARREL LUGS for FIELD-WIRED
OUTPUT,
3-PH 600VAC, included
EQUIPMENT GROUND TERMINAL
AUX POWER, 3A FUSES
346 VAC, to the Heila Edge PMC
600A, 600VAC 3-POLE
DISCONNECT SWITCH
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