(a) Synchronous Buck Converter

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??PV-Module Emulator
(a) Synchronous Buck Converter
(b)Average current control
(c)PV characteristic curve
(d)PSIM simulation block
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The Implementation of PV-module power circuit
The PV-module emulator Controller By matlab
real-time control
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??Design and Implementation of Single-Phase
Grid-Connected Photovoltaic Power Generation
Systems
Advantagelow cost?high efficiency Disadvantagema
ny PV-modules?low reliability
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Modeling of the full-bridge converter
Current controller design
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DC voltage controller design
a.DC-link voltage contains the second order
voltage ripple. b.The low-pass filter is used to
attenuate the second-order ripple.
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Maximum Power Point Tracking(MPPT) controller
PV-module characteristic curve
Adjustability MPPT controller
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The PSIM block of Single-Phase Grid-Connected PV
Inverter
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The PSIM simulation result
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??Design and Implementation of High Step-up
Flyback PV Inverter
Advantagelow cost?high efficiency?
current limit?easy to control
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??The control system of High Step-up Flyback PV
Inverter
Voltage control inner loop
MPPT control outer loop
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Modeling of High step-up flyback PV inverter
Modeling of voltage loop system
Type II voltage controller

• To attenuate the second-order ripple of PV-module
  , the Fp must be less than 120Hz(754rad/s).
• For MPPT control outer loop , voltage loop could
  design in 50Hz (300rad/s).

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The PSIM block of High step-up flyback PV Inverter
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The Implementation of High step-up flyback
converter and line-frequency inverter
The High step-up flyback PV inverter controller
By matlab real-time control
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The simulation result
The experimental result
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Thank you for your listening
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