http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en551429
Summary
This reference design demonstrates the flexibility and power of SMPS dsPIC? Digital Signal Controllers in Grid connected power conversion systems. This reference design works with any photovoltaic (PV) panel of maximum 220 Watts having open circuit voltage between 25V to 55V DC. This reference design ensures maximum power tracking for PV panel voltage between 25V to 45V DC. Two versions of this reference design is available to support 110V and 220V Grid.
This reference design is implemented using a single dsPIC33F “GS” digital-power DSCs from Microchip that provides the full digital control of the power conversion and system management functions. As shown in this reference design the dsPIC33F ‘GS’ devices enable designers to easily and cost effectively create products using advanced switching techniques that lower switching losses and enable efficiencies as high as 95%. Grid-Connected Solar Micro Inverter Reference Design is royalty free when used in accordance with the licensing agreement.
Key Features:
- Peak efficiency of 95%
- Output current THD < 5%
- Power factor >0.95
- Maximum power point tracking
- Grid voltage and frequency tracking
- Protection against various current and voltage faults
- Night time power consumption <1W
- System Islanding to detect grid failure
- Full Digital Control
Specifications:
- Micro Inverter for individual PV Module up to 220W
- Wide PV Panel voltage : 25V to 55V DC
- Maximum Power Point Tracking voltage: 25V to 45V
- Maximum DC short circuit current : 10A
- Grid Frequency range :
47 – 53 Hz for 220V systems
57 – 63 Hz for 110V systems
- Grid voltage range :
90V – 140V for 110V systems
180V – 264V for 220V systems
Package Contents:
- PV Micro Inverter board with cables
- Documentation CD consisting of: Source code, Schematics, PCB, BOM and Test files
其中包含應用筆記，PCB，原理圖，源代碼，材料單，MATLAB模型，是非常好的參考資料
