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Optimized output for photovoltaic power plants: Siemens expands range of central inverters

12.06.2012
The Siemens Industry Automation Division has made an addition to the Sinvert PVS 600Series central inverter family for medium-sized and large photovoltaic power plants.

The new Sinvert PVS585 and Sinvert PVS630 basic units supplement the previous range of rated powers with intermediate values. The expanded series now covers an output range from 500 up to 2520 kilowatts. This diversification results in maximum yield with optimum tuning to various MPP (maximum power point) windows.


Two new central inverters in the Sinvert PVS 600Series from the Siemens Industry Automation Division cover additional output ranges and result in a higher yield for photovoltaic power plants.

Compared to the Sinvert PVS500, the new Sinvert PVS585 features an increase in output power of around 17 percent. Sinvert central inverters deliver peak efficiencies of up to 98.7 percent, and a European efficiency of 98.4 percent. As a result of the extended output power ranges, owners can counteract reduced compensation for electricity fed into the grid and increase the overall profitability of their photovoltaic plants.

The new Siemens Sinvert PVS585 central inverters with output ranges of 585, 1170, 1755, and 2340 kilowatts represent an optimum balance between maximum power and a wide MPP window. The new Sinvert PVS 630 with rated powers of 630, 1260, 1890 and 2520 kilowatts is particularly suitable for achieving maximum yields from high-quality modules.

The Sinvert PVS portfolio also includes a control box for central control of the plant and regulation of the active and reactive power. The Fault Ride Through function increases plant availability. Expansion of the Sinvert PVS 600Series is also associated with extension of the reactive power data. In the future, it will be possible to compensate both reactive powers in finely meshed medium-voltage grids and voltage variations in extensive medium-voltage grids even better. Plant owners are thus superbly equipped for future grid requirements.

Just like all Sinvert PVS devices, the new central inverters are designed for high plant availability and efficient long-term operation. Up to four inverter subunits can be connected together according to the master/slave principle. Initial selection always favors the master which can operate at low solar radiation levels. As the insolation intensity increases, the next subunit is switched in as slave. Compared to the use of only a single unit, this system increases the efficiency of the central inverter when irradiation levels are low. The operating time is distributed uniformly between the various subunits, and this in turn increases the service life of the components.

Central inverters from Siemens have been assigned comprehensive certifications, and are suitable for use worldwide. In addition to the UL (Underwriters Laboratories), CSA (Canadian Standards Association), and IEC (International Electrotechnical Commission) quality standards, they support both 50 Hertz and 60 Hertz line frequencies. All Siemens central inverters are available individually or as turnkey solution, installed in a container with all the necessary medium-voltage components. The inverter stations can be controlled using a graphics display in the front of the control cabinet or operated by remote control. Faults in individual sections of the photovoltaic field can be detected and eliminated early on.

Special dust or salt filters provide comprehensive protection for use in dry locations or those close to the sea. Globally available services and individually tailored servicing concepts round off the facilities available for the central inverters from Siemens.

Please send inquiries with the reference "IA2613" to:
Siemens Industry Automation, Infoservice, P.O. Box 23 48, 90713 Fuerth (Germany)
Fax: +49 (911) 978-3321 or email: infoservice@siemens.com
The Siemens Industry Sector (Erlangen, Germany) is the world's leading supplier of innovative and environmentally friendly products and solutions for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the Sector enhances its customers' productivity, efficiency, and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Industry Automation, Drive Technologies, and Customer Services Divisions as well as the Metals Technologies Business Unit. For more information, visit http://www.siemens.com/industry

The Siemens Industry Automation Division (Nuremberg, Germany) provides support for the complete value chain of its industrial customers through a unique combination of automation technology, industrial switchgear, and industrial software – extending from product design through production up to servicing. Thanks to its software solutions, the Division can reduce the market launch time for new products by up to 50 percent. Industry Automation comprises five Business Units: Industrial Automation Systems, Control Components and Systems Engineering, Sensor and Communications, Siemens PLM Software, and Water Technologies. For more information visit http://www.siemens.com/industryautomation

Reference Number: IIA2012062913e

Contact

Mr. Peter Jefimiec
Industry Automation Division
Siemens AG
Gleiwitzerstr. 555
90475 Nuremberg
Germany
Tel: +49 (911) 895-7975
peter.jefimiec@siemens.com

Peter Jefimiec | Siemens Industry
Further information:
http://www.siemens.com/sinvert
http://www.siemens.com/press/intersolar-europe-2012

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