photo voltaic brochure
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Utility scale
PV invertersystems145 kWp - 1.76 MWp
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Energy yied is about more than just efciency, it is aso
about avaiabiity. Contro Techniques PV inverter soutions
enabe investors to exceed their return on investment (ROI)
expectations through high yied inverter systems. These are
designed and manuactured by our proessiona engineers and
controed through our dedicated project management teams,
to meet your required timescaes. Our SPV systems are backed
by guarantees to ensure perormance is maintained over theietime o the pant.
Modular inverter systems for proven availability
Control Techniques SPV systems are a range of transformerless
central inverters for PV installations from 145kWp to 1.76MWp.
Each inverter is constructed using multiple standard 175kW
modules (except SPV145 and SPV175 which are single 145kWp
and 175kWp inverter modules). Based on a mature design, our
inverter modules are mass produced for both industrial and PV
applications. Proven to be reliable and robust, Control Techniques
inverter modules improve availability whilst simplify global supply
chains and minimising spares holding.
Emerson your bankable partner
Control Techniques is a key member of American company
Emerson. Emerson is a diversied global manufacturing company
that brings technology and engineering together to provide
innovative solutions to customers. Each of Emersons businesses
is in an industry leading position, with a global workforce of more
than 140,000 employees, 265 manufacturing facilities and a very
strong balance sheet, making it a truly bankable partner. Emerson
has the infrastructure, knowledge, and experience to deliver its
technology and product solutions to customers around the world.
Intelligent Inverter Management (IIM) control to maximise yield
Control Techniques SPV inverter systems incorporate IIM to control
the active and standby status of each inverter module. This has
benets in energy efciency and increased reliability:
Enhanced efciency
Modularity allows the active inverter capacity to be continuously
scaled to optimise energy efciency for all conditions and allows
the system to begin generating sooner in low light conditions.
The result is Control Techniques PV inverters achieve up to 98.0%
peak and 96.7% using the EU weighting factor.
Enhanced avaiabiity
In the event of an inverter module trip, the system automatically
recongures to continue generating. For critical applications
built-in redundancy can be incorporated within the system to
maintain maximum output with minimum investment. The
active and standby duty for each module is rotated so that
generating capacity is shared.
Control Techniques SPV grid-tie inverters - The key to a better ROI
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Control Techniques was founded in 1973,specialising in innovative, high performance
power conversion technologies. Since 1996Control Techniques has been a part of
Emerson, a global company with a longstanding reputation for high quality and excellentnancialperformance.
Engineering and project management solutions to meet your needs
Control Techniques can provide as much or as little of the PV inverter
system as you need, from an inverter to a complete turnkey solution
incorporating all power components. This includes string connection
boxes, shelter with transformer and MV/HV switchgear which is,
engineered to ensure compliance with local grid-connection codes.
Integration with equipment from local and international suppliers
can easily be accommodated to reduce transport costs and improvelead times.
Photovoltaic power plants generate a returnon investment through payments for energythat is fed on to the power grid. The amountof energy is the yield which is a function of efciencyandavailability.ROIisextremely
to both these factors.
Activated module Stand-by module
Illustration showing intelligent inverter control dynamically
matching generator output.
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Control Techniques SPV inverter system
Greater yield at low irradiance levels
A key differentiator of Control Techniques' SPV system is our
ability to enhance yield at low irradiance levels as the modular
inverter solution dynamically re-sizes to match generated power.
The following graph demonstrates how this increases efciency,
which remains above 96% at only 3% of full load. This compares to
conventional bulk inverters where the efciency begins to reduce
severely below 20% of full load. Yield at low load is particularly
important in temperate climates such as northern Europe.
High accuracy MPPT algorithm
To ensure maximum power is obtained from PV arrays, Control
Techniques' unique Maximum Power Point Tracking (MPPT)
algorithm is optimised for accuracy for both crystalline and thin
lm solar panels. The system is able to adapt rapidly to fast moving
weather conditions across a wide temperature range.
SPV1800 efficiency and power gain compared with a conventional
bulk inverter
Inlowsolarirradiancelevels,Control Techniques inverters start generating power
soonerandwithgreaterefciencythanconventional bulk inverter solutions witha turn-on/turn-off threshold of less than900W.
Multimaster efciency Conventional inverter efciency SPV power gain (W)
00 80.0%
400 82.0%
800 84.0%
1200 86.0%
1600 88.0%
2000 90.0%
2400 92.0%
2800 94.0%
SPVpowergain(W
)
Efciency
% Full Load
3200 96.0%
3600 98.0%
4000 100.0%
10 20 30 40 50 60 70 80 90 100
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Compact and easy to manage
Each inverter module is compact
and light weight so that it can
be handled easily by one person.
Modularity does not impact overall
dimensions, a 1MW inverter
measures only 3.6 metres wide.
Warranty and service contracts
Control Techniques inverters are
supplied with a 2 year on-site
warranty as standard. Extended
warranties and service contracts
are available to ensure energy yield
is maintained over the lifetime of
the plant. These can be sold as part
of the capital package or funded
annually.
Core Unidrive SPMD
175kWp inverter
Weight:55kg (121lbs)
310mm(12.2in)
796mm(31.3in)
298mm
(11.7in)
Control Techniques inverters are extremelyreliable, however, if one module does fail,
the rest keep generating and because theyare compact, one person can handle themaintenance or replacement.
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Control Techniques SPV inverter standard features and options
Options
Built in inverter redundancy
Communications via Ethernet (Ethernet/IP, Modbus
TCP/IP), Modbus RTU, Probus DP, Devicenet
DC fusing or circuit breakers
AC / DC side switches
+/- DC side grounding
Single piece or split AC side / DC side construction
Overvoltage protection
Inverter powered shelter cooling fans
OPC Server
Utility interface
Automatic reactive current and power factor control
Up to 1000V switch-on
Key inverter features
High efciency, 98.0% peak, 97.6% EU factor
Optimised for reliability and long active life
Standard industrial massproduced inverter modules
Power increments of 175kWp from 145kWp to 1.76MWp
Compact inverter footprint
Low switch-on point of 900W (0.05% on 1.76MW inverter)
High accuracy Maximum Power Point Tracking (MPPT)
over a wide voltage range
Engineered for compliance with international grid connection
codes
Anti-islanding and supply dip ride-through
3.3% total harmonic current distortion (ITHD)
- no transformer de-rating required
Tolerant to inverter module faults with fast automatic recovery
Communications and PC tools for local or remote
conguration and monitoring
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Control Zone
Intelligent SolarInverter Control
DC VoltageMonitoring
EMCFilter
EMCFilter
Filter
EMCFilter
EMCFilter
Filter
DC+ DC-
3
InverterControl
3
InverterControl
Module 3...n
Module 2
FieldConnections
FieldConn
ections
Module 1
Notes:
DC input switch and fusing/mcb are optional
DC over-voltage protection is optional
AC output fuses are standard, switch is optional
Control Techniques SPV inverter system diagram
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MV/HV switchgear
Medium voltage transformer
Control Techniques' ready-to-use shelter design
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Ancillary DC equipment
SPV grid tie inverter
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SPV inverter ratings and data
Ratings
SPV 248 300 600 900 1200 1500 1800 2100 2400 2700 3000
AC current A 245 300 600 900 1200 1500 1800 2100 2400 2700 3000
DC current A 300 350 700 1050 1400 1750 2100 2450 2800 3150 3500
Inverter power @ 340Vac kWp 145 175 350 530 700 880 1060 1230 1410 1590 1760
Maximum recommended PV generator power kWp 150 190 380 580 770 960 1160 1350 1550 1740 1930
Euro efciency %
CEC efciency %
Maximum efciency %
Turn on / o power W
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Specifications
Frequency Hz 50-60
AC votage range Vac 260 to 480 depending on MPPT range
MPPT range Vdc 400-800
Maximum DC switch on votage with crowbar Vdc 1000
Maximum DC votage without crowbar Vdc 830
Power actorFully controllable. Maximum reactive current is the vector difference of inverter current rating andactive current.
Power actor contro External control by analogue, digital or communications bus
Tota harmonic current distortion (ITHD) %
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The complete photovoltaic system
Photovoltaic inverters are part of the wider PV system which
includes the string connection boxes, transformers and MV/HV
switchgear. Control Techniques can supply the complete turnkey
solution through our global engineering network located in 31
countries. We are able to work with local suppliers to minimise
time and the costs associated with transport ing equipment.
Alternatively, SPV inverters can be supplied individually,
engineered to work with third party supplied equipment.
Inverter, transformer and switchgear shelters
Control Techniques shelters can include:
Separate sections for the inverter, transformer and MV
switch where required
Concrete or steel construction
Integrated transformer disconnection devices
Can be supplied pre-wired
Thermostatically controlled forced ventilation or air
conditioning
Anti-condensation heaters
kVA measurement on the LV and MV side
DC over voltage protection
Security equipment
Emerson UPS system for power back-up
Meteorological instrumentation
Control Techniques work with localsuppliers to minimise time and the costsassociated with transport
Control Techniques' complete photovoltaic solution
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Custom designed flexibility
Singe inverter systems
Muti inverter systems
Control Techniques engineers can provide systems that are designed
specically for your application, whatever the power requirements
using single or multi-inverter systems.
String connection boxes and SCADA
Control Techniques can supply a complete
package of web based SCADA, string connection,
boxes and meteorological instrumentation
package, alternatively, SPV communications
exibility allows developers, integrators or
operators to specify a system of their choice.
Transformers
Transformer and MV switch schemes are
individually engineered for each project to suit
grid connection, environmental, regulatory and
protection requirements. They can be designed
using oil cooled, dry or cast resin transformers.
UPS and LV switchboard options are available.
Solar tracking systems
Solar trackers enhance energy yield by around
30%. With Control Techniques drives and
Leroy Somer gearmotors, Emerson can provide
a complete electro-mechanical solution for
photovoltaic solar array trackers to maximise
energy capture.
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SPV inverter part numbers
SPV 245 DE 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1
Inverter type
Amp rating
Country of end use
DE - Germany, FR - France, IT - Italy, ES - Spain, USA - USA, CN - China, TH - Thailand, GR - Greece,
CA - Canada, UK - United Kingdom, OT - Other
Standards1 - BDEW, 2 - FERC, 3 - RD, 4 - DK, 5 - IEEE1547, 6 - Arrt, 7 - GB/Z 19964-2005, 8 - Australian, 9 - Other
MPPT range
1 - UL, 2 - EU - 800V turn-on, 3 - EU - 1000V turn-on
Construction
1 - Standard, 2 - Split, 3 - Other
Plinth
1 - 100mm (4in), 2 - 200mm (8in)
AC main disconnect
1 - Yes, 0 - No
DC main disconnect
1 - Yes, 0 - No
DC protection
0 - None, 1 - Fuse carriers only, 2 - Fuse + carriers, 3 - MCBs
DC grounding0 - None, 1 - Positive, 2 - Negative
0V protection
1 - Yes, 0 - No
Comms interface
1 - Ethernet, 2 - Modbus, 3 - Non standard
Shelter
1 - Yes, 0 - No
SCADA interface
1 - Yes, 0 - No
String connection box
1 - Yes, 0 - No
Transformer
1 - Yes, 0 - No
MV/HV switchgear1 - Yes, 0 - No
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A global reference list
Control Techniques inverters are used on the largest solar park in
Europe, name. Control Techniques systems are installed around
the world.
Kublank project, Meridian (Germany)
NewControlTechniquesPVinstallationbeingbuiltinItaly
Control Techniques worldwide PV solutions
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C t l T h i 2010 Th i f ti t i d i thi b h i f id l d d t * O perated by sister company
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