Overview of Solar Inverters: FIMER PVI-55.0/330.0 Series
Key Features
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Power Range: From 55 kW to 300 kW using modular 55 kW blocks.
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Efficiency: Up to 98% efficiency (for TL versions).
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MPPT Channels: High-speed Maximum Power Point Tracking for optimized energy harvesting.
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Input Voltage: Maximum DC input voltage of up to 1000 Vdc.
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Flexibility: Suitable for large scale PV plants with reduced DC distribution losses.
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Pre-configured Systems: Delivered pre-configured and pre-tested, reducing on-site wiring and testing.
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Modularity: Each module operates independently, so a failure in one module does not affect others.
Technical Specifications
Inverter Models
- PVI-55.0/110.0
- PVI-165.0/220.0
- PVI-275.0/330.0
Input Side
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DC Voltage Range: 485...950 V
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MPPT Range: 485...800 V
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Input Current: Up to 738 A combined, 123 A per module.
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DC Inputs: Multiple pairs depending on the model.
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Protection: Reverse polarity protection, input overvoltage protection, and residual current protection.
Output Side
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AC Grid Connection: Three phases, with 4W+PE or 3W+PE options.
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Rated Power: Varies from 55 kW to 330 kW.
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Voltage Range: 320...480 V
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Output Current: Up to 606 A
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Frequency Range: 47...63 Hz
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Power Factor: > 0.995 (adjustable ±0.90)
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Total Harmonic Distortion: < 3%
Environmental and Physical
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Temperature Range: -10...+60°C with derating above 50°C.
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Humidity: 0...95% non-condensing.
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Noise Emission: <72 dB(A) @ 1m, varying by model.
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Protection Rating: IP 20
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Cooling: Air forced, with required cooling flow varying by model.
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Dimensions: Varies from 1077mm x 1250mm x 850mm to 2184mm x 1250mm x 850mm.
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Weight: From <350 kg to <1300 kg, depending on the model.
Safety and Standards
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Transformer: Available in models with and without transformers.
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Marking: CE (50 Hz only)
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Safety and EMC Standards: EN 50178, EN61000-6-2, EN61000-6-4, EN61000-3-11, EN61000-3-12.
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Grid Standards: CEI 0-21, CEI 0-16, BDEW, RD 661/2007, RD 1565/2010, P.O.12.3 (check for availability by region).
Communication and Monitoring
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Local Monitoring: PVI-USB-RS232_485 (optional)
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Remote Monitoring: PVI-AEC-EVO (optional), VSN700 Data Logger (optional)
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String Combiner: PVI-STRINGCOMB (optional)
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User Interface: 16 characters x 2 line LCD display for each module
Highlights
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Fault Susceptibility: Reduced susceptibility to single faults with a maximum of 55 kW lost per module.
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Noise Reduction: Reduced acoustic noise due to high switching frequency.
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Integrated Protection: DC and AC distribution and protection integrated.
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Monitoring: Two independent RS-485 communication interfaces for smart monitoring.
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DC Disconnect Switch: Integrated for each 55 kW module, with replaceable fuses and overvoltage protection.
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Revamping Applications: Ideal for MV connected PV systems revamping without changing the MV transformer.
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TL Versions: Available with different AC voltage standards (e.g., CEI 0-16).
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Wider MPPT Range: Enhanced MPPT range for better energy harvesting.
Conclusion
The FIMER PVI-55.0/330.0 series of solar inverters offers a highly efficient, modular solution for various PV plant configurations, providing robust performance and easy integration for large-scale solar energy systems. The modularity and independent operation of each 55 kW block ensure that the overall system performance remains high even if individual modules are affected, making it a reliable choice for both new installations and revamping existing systems.