SlideShare a Scribd company logo
ST MicroelectronicsSolar Reference Designs Available from  Avnet Electronics Marketing www.avnetexpress.com
Semiconductor reference designs for solar Improved performance and efficiency
3 kW converter for grid-connected PV systems Anti-islanding DC-DC High efficiency >95% DC-AC Auxiliary SMPS Control board Part Number: STEVAL-ISV002V1 Overview DC-DC converter based on phase-shift FB control of primary and secondary switches by MPPT algorithm PV PANEL MPPT DC-AC converter based on current mode PWM control for grid connection by DC bus voltage control
3 kW converter for grid-connected PV systems Vbus = 450 V Pout = 3 kW STW55NM60ND STW55NM60ND STGW35NC60WD STTH60L06W DC array voltage Z3 Z1 Fs = 17 kHz Fs = 35 kHz M3 M1 M5 Grid HF transformer 1:n Lf Llk DC Voltage Vin = 200-400 V PV Lf Z2 Z4 M2 M6 M4 High-voltage half-bridge drivers Gate driver L6386 Gate driver L6386 Gate driver Gate driver TD350 Gate driver TD350 Programmable dead time STM32 System architecture: main components
Tested Efficiency @ 300V Input STP42N65M5 STW55NM60N 0.99 0.985 0.98 0.975 Efficiency 0.97 0.965 0.96 0.955 Output Power 0.95 0 500 1000 1500 2000 2500 DC-DC converter power transfer 3 kW converter for grid-connected PV systems
Part Number: STEVAL-ISV001V1 1 KW Inverter Specifications ,[object Object]
Output voltage: 230 Vrms, 50 Hz
Output power: 1 kW

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Avnet Electronics Marketing and STMicro Solar Reference Designs

  • 1. ST MicroelectronicsSolar Reference Designs Available from Avnet Electronics Marketing www.avnetexpress.com
  • 2. Semiconductor reference designs for solar Improved performance and efficiency
  • 3. 3 kW converter for grid-connected PV systems Anti-islanding DC-DC High efficiency >95% DC-AC Auxiliary SMPS Control board Part Number: STEVAL-ISV002V1 Overview DC-DC converter based on phase-shift FB control of primary and secondary switches by MPPT algorithm PV PANEL MPPT DC-AC converter based on current mode PWM control for grid connection by DC bus voltage control
  • 4. 3 kW converter for grid-connected PV systems Vbus = 450 V Pout = 3 kW STW55NM60ND STW55NM60ND STGW35NC60WD STTH60L06W DC array voltage Z3 Z1 Fs = 17 kHz Fs = 35 kHz M3 M1 M5 Grid HF transformer 1:n Lf Llk DC Voltage Vin = 200-400 V PV Lf Z2 Z4 M2 M6 M4 High-voltage half-bridge drivers Gate driver L6386 Gate driver L6386 Gate driver Gate driver TD350 Gate driver TD350 Programmable dead time STM32 System architecture: main components
  • 5. Tested Efficiency @ 300V Input STP42N65M5 STW55NM60N 0.99 0.985 0.98 0.975 Efficiency 0.97 0.965 0.96 0.955 Output Power 0.95 0 500 1000 1500 2000 2500 DC-DC converter power transfer 3 kW converter for grid-connected PV systems
  • 6.
  • 7. Output voltage: 230 Vrms, 50 Hz
  • 10.
  • 12.