Medium DC Voltage Rectifier (AFE)
Flexible rectifier for low and medium DC voltage
Combining high efficiency and a flexible DC output range for low and medium voltages, this rectifier delivers reliable and cost-effective performance.
Developed using Active Front End (IGBT) technology, the Medium DC Voltage Rectifier (AFE) delivers up to 13MW of power and, scalable in 3.25MW steps.
With a wide DC current range of 5000–20,000ADC and a DC voltage range of 50–1200VDC, the integrated DC step down module ensures high power quality, including optimal power factor, reactive power delivery, Fault Ride-Through (FRT), and grid support.
Key benefits
Designed for low and medium DC voltage green hydrogen applications.
Flexible DC output, accommodating a wide DC voltage range.
Ideal for large-scale plants and megawatt upscaling.
AFE technology provides high power quality and low harmonic distortion.
Seamless plant integration to ensure TSO/grid compliance.
Rectifier technology comparison
At KK Wind Solutions, we employ two rectifier technologies: Active Front End (IGBT) and traditional diode.
Diode/Thyristor Rectifiers
Efficient and reliable, these rectifiers are ideal for small-scale projects where basic control and standard power quality are sufficient. Due to unidirectional power flow and lack of active power factor control, they require additional filtering, which increases operating costs.
Active Front End (IGBT) Rectifiers
Widely used in renewable energy systems, AFE rectifiers offer fast, precise control, reactive power capability, and superior DC voltage regulation. Their high efficiency, reduced harmonic distortion, and scalability make them ideal for large green hydrogen plants and evolving grid requirements.
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