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Inverters An inverter is a device transforming AC current into DC current If properly controlled, the inverter converts DC Current and reproduce AC current by controlling frequency and voltage. INVERTER Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 1 Inverters An inverter is a device transforming AC current into DC current If properly controlled, the inverter converts DC Current and reproduces AC current by controlling frequency and voltage. ~ R S T U V W INVERTER AC current Fixed Voltage and frequency i.e. 400Vac 60Hz Mot. AC current Variable Voltage and frequency i.e. 200Vac 100Hz Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 2 Inverters An inverter is a device transforming AC current into DC current powering an IGBT bridge. If properly controlled, The IGBT bridge reproduces AC current by controlling frequency and voltage. +VE ~ DC Current U V W R S Mot. T -VE DIODES RECTIFIER INVERTER IGBT BRIDGE Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 3 Inverters Motion Drives With a proper feedback an inverter is able to control the speed and the torque of the electric motor shaft Speed measurement ~ R S T INVERTER Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 4 Inverters Brakes When the inverters reduces the speed of an high inertial load or when the inverters drives an heavy load down power is regenerated into the back into the inverter. Speed measurement ~ R S T INVERTER The inverter is capable of dissipating such power into a braking resistor Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 5 Inverters Regenerative In a Back to Back configuration an inverter can act as a bidirectional Active Front End that is able to regenerate power back into the grid Speed measurement ~ R S T AFE INVERTER Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 6 Inverters Regenerative The Active Front End (AFE) is capable of feeding power into the grid +VE ~ DC Current U V W R S Mot. T -VE INVERTER IGBT BRIDGE Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 7 Photovoltaic Inverters The Active Front End (AFE) is capable of feeding power power produced by PV modules DC Current +VE PV modules ~ R S T GRID -VE INVERTER Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 8 Photovoltaic Inverters Most of PV inverters needs a transformer. In some PV inverters the transformer is included PV modules +VE ~ R S -VE T GRID Transformer INVERTER PV INVERTER CABINET Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 9 Photovoltaic Inverters The Active Front End (AFE) is capable of feeding power power produced by PV modules PV modules +VE ~ R S -VE T GRID INVERTER Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 10 PV Inverters – Residential segment SUNWAY MXS Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 11 PV Inverters – Industrial segment SUNWAY TG Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 12 PV Inverters – Utility segment Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 13 PMG WIND Turbines Inverters Permanent Magnet Generators from 2kW to 200kW WIND INVERTER CABINET WIND BOX +VE ~ R S T GRID -VE Transformer INVERTER Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 14 PMG WIND Turbines Inverters ETESIAN MINI Single-phase 2kW – 6kW ETESIAN ONE Three-phase 20kW – 200kW Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 15 PMG Biomass turbine Inverters Permanent Magnet Generators from 2kW to 200kW INVERTER CABINET RECTIFIER +VE ~ U V W R S T PMG GRID -VE Transformer INVERTER Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 16 PMG HYDRO turbines Inverters Permanent Magnet Generators from 2kW to 200kW INVERTER CABINET RECTIFIER +VE ~ U V W R S T PMG GRID -VE Transformer INVERTER Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 17 HYDRO/WIND Inverters PM or Asynchronous GEN. Speed measurement ~ R S T AFE INVERTER Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 18 SOLAR + Water Pumps PV modules +VE -VE INVERTER Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 19 SOLARDRIVE Santerno Products & Markets Scenario, Campodarsego - Nov 7th 2012 20