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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

DRIVING THE WORlD...

Contro Techniques Drive & Appication CentresAUSTRAlIAMelbourne Application CentreT: +613 973 81777controltechniques.au@emerson.com

Sydney Drive CentreT: +61 2 9838 7222

controltechniques.au@emerson.com

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BAHRAINEmerson FZET: +971 4 8118100ct.bahrain@emerson.com

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El SAlVADORServielectric Industrial S.A. de C.V.T: +503 2278 1280

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janis@emt.lv

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