NEXICONTROL

NEXICONTROL is the latest generation of VONSCH inverters for photovoltaic power plants and battery storage systems. These are high-efficiency Active Neutral-Point-Clamped (ANPC) three-level inverters that use Infineon® latest generation power semiconductors.

Texas Instruments® multi-core microprocessor with built-in FPGA and control algorithms ensure quick signal processing with a fast response for high control quality and outstanding local and remote diagnostics capabilities.

The abilities of NEXICONTROL inverters make them suitable for the most demanding applications in fields involving renewable energy sources, such as solar power plants and battery storage systems (in the GSE version).

Features

• built-in AC fuses
• built-in measurement of leakage currents
• DC interference filter
• AC interference filter
• built-in AC surge protector, DC surge protector optional

Communication

• MODBUS RTU, based on RS485 for backward compatibility with older generation of VONSCH inverters
• MODBUS TCP, for control and diagnostics over Ethernet LAN, or its wireless version IWLAN (option)
• Built-in graphic display for quick insight into the actual status of the inverter
• Possibility to connect UNIPANEL graphical control panel
• Setup, diagnostics, and control over the VONSCH DRIVE STUDIO application, version 4.3 and later

General technical data

Parameter	NEXICONTROL 400 050
Rated apparent power:	50 kVA
DC voltage operating range:	600 - 1000 V DC
MPPT operating voltage range (at Vnac):	600 - 990 V DC
Rated AC voltage (Vnac):	400 V AC
AC voltage range:	360 - 440 V AC
Rated AC current:	72 A AC
Peak efficiency:	99%
Euro efficiency:	98.8%
Peak efficiency:	40 kHz
Current THD at rated power:	< 3%
Reactive power control input:	Value of reactive power Requested value of cos(φ)
Active and reactive power control range:
Grid control / DROOP Control:	P = f(F) Q = f(U) Q = f(P) P = f(U) * control modes can be added upon request for compatibility with various distribution network requirements
Protection:	IP 55
Dimensions:	615 x 654 x 339 mm (width x height x depth)
Cooling:	forced air cooling with built-in fans
Relative humidity:	≤ 95%, free of corrosive and explosive gases, free of water vapour and condensates
Altitude of permissible deployment:	power decrease by 1% for every 100 m over 1000 m above sea level
Ambient operating temperature:	+ 0 °C to + 30 °C (-20 °C to + 40 °C with tempering and air conditioning)
Ambient storage temperature:	- 25 °C to + 50 °C
Standards:	Safety: EN 50178 Grid quality: EN 50160 EMC emissions: EN 61000-6-2,4, STN EN 55011 Harmonics: EN 61000-3-11, STN EN 61439-1,2
EEC Directives:	2014/35/EEC, 2014/ 30/EEC, 2011/65/EEC, 2015/863/EEC