The new 630kW PVS800 central inverter from ABB has a claimed high total efficiency with one of the most compact designs on the market. The operating temperature range is extended and a new modular DC input design provides flexibility for integrators.
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A 45% higher power density compared to earlier ABB central inverters makes this one of the most compact inverters on the market by footprint and volume per kW. This reduces installation and container space and lowers transportation costs.
Solution
The high total efficiency in the new ABB central inverter is a result of systematic and continuous R&D efforts. It has a 98.6% maximum efficiency with an improved efficiency at partial loads to provide a Euro efficiency of 98.4%. This, together with a very low auxiliary power consumption of only 600 watts at nominal power, results in an inverter with a very high total efficiency. The central inverter offers a wider operational temperature range, up to 45°C at nominal power, and up to 55°C with power derating. This makes the product suitable for hot temperature conditions. At lower temperatures, the ABB central inverter provides up to 10% power overloading capability, up to a maximum power output of 700 kW at 25°C.
Applications
The ABB central inverter series, rated from 100 to 630 kW, is designed for multi-megawatt photovoltaic (PV) power plants as well as large and medium sized commercial and industrial PV installations.
Platform
A newly designed DC input section provides system integrators with a modular and flexible approach. This is especially helpful when considering the DC cable type and the number of junction boxes needed. For example, the 630 kW ABB central inverter is available with eight 250 A inputs, suitable for 16 string junction boxes. Optionally, the inverter is also available with four 400 A or twelve 160 A inputs. With the ABB central inverter’s certificates and advanced and flexible grid support functions, it is possible to meet all applicable network connection requirements, regardless of where the project is located.
Availability
March 2012 onwards.
