Outdoor
Large-scale inverterPVmaster Outdoor technology
PVmaster Outdoor
The PVmaster Outdoor can be installed directly on the PV generator. This makes it suitable
in particular for PV power plants, where the power inverter cannot be housed in a suitable
building.
Resistant to environmental effects
The rugged design of the PVmaster Outdoor ensures efficient grid connection: Double-
walled housing and heat exchanger shield the power electronics effectively against
environmental effects. The PVmaster Outdoor is insensitive to dust, moisture and extreme
temperatures so that reliable operation is ensured at all times.
Power inverter
The heart of the PVmaster are power electronics developed at LTi that have demonstrated
their high quality as frequency converters in industrial drive engineering on a daily basis
for years.
Main switch
Integrated AC and DC switch-disconnectors enable simple isolation of the power inverter
in compliance with the requirements of VDE 0100-712.
Transformer
With the efficiency optimised isolating transformer, the DC side is decoupled from the
potential of the AC side. The earthing of a DC pole – as prescribed for the operation of
thin-film modules – is admissible.
Data logger
Operation of the PV power plant is recorded in the data logger. Recording input and
output quantities as well as temperature as daily curves allows early determination of the
optimal operation of the PV generator.
Communication
A logbook file and measured values are made available via the Internet (www.pvmaster.de)
or mobile phone network. Unexpected events are directly reported – either per e-mail or
SMS direct to mobile phone.
Overvoltage protection
Overvoltages can occur due to lighting strikes, switching operations and atmospheric
disturbances. Built-in overvoltage protectors limit the voltage and prevent failures.
Filters
The employed filters in conjunction with dynamic current control produce a line current
with a quality that exceeds standard requirements. The current distortion THD is < 2 %.
This makes it possible to operate the PVmaster also on “weak” power systems. PVmaster
can also contribute to improving the system voltage quality.
2PVmaster Outdoor 450-068 and 100
PVMO 450-068, PVMO 450-100
Technical data
Designation PVMO 450-068 PVMO 450-100
Grid connection (AC)
Nominal power 68 kW 100 kW
Nominal voltage 400 V, 690 V1) 400 V, 690 V1)
Grid frequency 50 Hz, 60 Hz 50 Hz, 60 Hz
Line fuse (400 V connection) / maximum output current AC 120 A 160 A
Power factor λ 0.999 0.999
Generator connection (DC)
Peak power 81 kWp 120 kWp
Maximum input voltage 900 V 900 V
Maximum input current 160 A 250 A
MPP voltage 450 V to 850 V 450 V to 850 V
MPP trackers 1 1
Efficiency of medium voltage level
Maximum efficiency >962), >973) >962), >973)
European efficiency >952), >963) >952), >963)
Dimensions4)
Height 1800 mm 1800 mm
Width 1700 mm 1700 mm
Depth 800 mm 800 mm
Weight 1000 kg 1000 kg
General data
Topology 2), 3) 2), 3)
Operating temperature -20 °C to +40 °C -20 °C to +40 °C
Protection class IP 54
Consumption (operation / night) <1% nominal power AC /1,5 W
Features • Remote interrogation via Internet, error messaging per e-mail
• Overvoltage protection, DC main switch, AC short-circuit proofing
• Ground fault monitoring and grid monitoring
Options • GPRS modem, PV plant monitoring, status e-mail, error messaging per text message
• Distribution box
• Service contract, extended warranty
1) Different voltages and different protection classes on request 2) PVmaster with transformer; electrical isolation between DC input and AC output
3) PVmaster; no electrical isolation between DC input and AC output 4) Dimensions without mounting parts
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Title: "Outdoor Large-Scale Photovoltaic Inverter - A Dedicated Inverter for Solar Power Generation Applications (English Sample)" Content Description: The document presents a comprehensive overview of an Outdoor Large-Scale Inverter, specifically designed and optimized for the photovoltaic (PV) power generation sector. This specialized inverter model is intended for use in outdoor settings, catering to large-scale solar farms or distributed PV systems that require robust and efficient conversion of直流 (DC) energy from PV panels into交流 (AC) electricity suitable for grid connection or direct consumption. The English sample covers key technical specifications of the inverter, including its capacity ratings (e.g., kW, kVA), advanced features such as maximum power point tracking (MPPT), DC-dc voltage and current balancing, high efficiency, and excellent temperature适应性 for operation under various climatic conditions. It may also discuss the inverter's modular design for scalability, built-in safety features like overcurrent and overvoltage protection, and possibly compatibility with different types of PV modules and string configurations. In addition, the documentation might delve into the inverter's ease of installation, maintenance, and remote monitoring capabilities through digital interfaces and communication protocols, ensuring optimal performance and system reliability over time. The sample would likely provide detailed illustrations, diagrams, and schematics to give readers a clear understanding of the inverter's internal structure and functionality, making it a valuable resource for both engineers and professionals in the renewable energy industry.