ALTERNATIVE ENERGY
Inverter for Grid Connection
A solar grid-tied inverter converts the DC output of PV modules into AC power suitable for transmission on the power grid, often deploying reactive power to meet new grid codes. It must always optimize the power output via MPPT (maximum power point tracking) and additionally monitor both the system and grid connection. In practice, each solar inverter installed in solar power plants needs to connect an array or string of PV modules to the power grid. The more efficient the inverter, the better the LCOE (levelised Cost of Electricity) generated by the system.
An on-grid solar inverter is composed of a DC-DC module, a DC-AC module and a control module. DC-DC module is built with a MOSFET, an inductor and a transformer, and functions to provide a stable DC output through rectifying and filtering the unstable DC power produced by PV modules; DC-AC module includes an IGBT array and an output filter circuit to convert the DC output of DC-DC module into an AC output suited for transmission on power grid. Control module is the core of whole system. It has a DSC, a voltage sensor, a current sensor, and a driver that drives MOSFET and IGBT module. DSC calculates the maximum power point of PV module array based on signals collected by sensors including PV modules’ voltage and current, power grid’s voltage and current, as well as phase. And accordingly it sends out instructions to driver which drives DC-DC and DC-AC modules. Furthermore, DSC is able to find out abnormal conditions such as transmission failure of power grid and take measures such as cutting off the connection between inverters and grid to prevent “island effect” occurences on power grid. Additionally, the control module has an interface for external display showing PV modules’ status and input/output voltage and current, and integrates a RS232/RS485 communication interface to connect with control centers of solar power plants, so that real-time monitoring of solar panels and inverters can be implemented.
Hover over the diagram blocks to view recommended products for this solution:
Connector for Solar Panel
Multi Contact
TE Connectivity
Amphenol
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Solar Circuit Breaker
ABB CONTROL
FINDER
ABB
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Solar Circuit Breaker
ABB CONTROL
FINDER
ABB
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IGBT Driver
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MosFET Driver
MICROCHIP
IXYS RF
STMICROELECTRONICS
Semikron
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High Performance, Multi-PWM Output DSC
FREESCALE
TEXAS INSTRUMENTS
Microchip
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Digital Isolator or Photocoupler
ANALOG DEVICES
Broadcom
TEXAS INSTRUMENTS
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Current Transformer
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Power Inductor
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Signal Conditioning Circuit's Core Chip is Amplifier
NATIONAL SEMICONDUCTOR
NATIONAL SEMICONDUCTOR
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Signal Conditioning Circuit's Core Chip is Amplifier
NATIONAL SEMICONDUCTOR
NATIONAL SEMICONDUCTOR
Signal Conditioning Circuit's Core Chip is Amplifier
NATIONAL SEMICONDUCTOR
NATIONAL SEMICONDUCTOR
Signal Conditioning Circuit's Core Chip is Amplifier
NATIONAL SEMICONDUCTOR
NATIONAL SEMICONDUCTOR
Power Supply
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RS232/485 Interface
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Display
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Relay Driver
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 | IRDC3841 IR3841 INTERNATIONAL RECTIFIER The IR3841 is a synchronous buck converter, providing a compact, high performance and flexible solution in a small 5mmx6mm Power QFN package. | BUY |
 | STEVAL-ISV009V1 STMICROELECTRONICS The STEVAL-ISV009V1 demonstration board is based on the SPV1020, which is a monolithic DC/DC boost converter designed to maximise the power generated by photovoltaic panels, independent of temperature and amount of solar radiation. | BUY |
 | MC56F8006DEMO-T FREESCALE MC56F8006DEMO is a cost-effective board targeting quick digital signal controller (DSC) evaluation, demonstration and debugging of the NXP MC56F8006VLF digital signal controller. | BUY |
 | TMDSHVMPPTKIT TEXAS INSTRUMENTS The C2000 High Voltage MPPT is designed for engineers developing solar based inverter/converter applications. | |
 | DM330023 MICROCHIP MCHV Development System for dsPIC® Digital Signal Controller (DSC) based motor control applications (BLDC, PMSM, ACIM). | |
 | TMDSHV1PHINVKIT TEXAS INSTRUMENTS EVAL, KIT, SINGLE PHASE, INVERTER |
| MICROCHIP | DSC | ECAN™ Operation with DMA on dsPIC33F and PIC24H Devices | AN1249 | PIC33F, PIC24H | Click here |
| MICROCHIP | Power | AN1278 - Digital Power IPFC Reference Design Application Note | AN1278 | Click here | |
| MICROCHIP | DSC | Implementing Digital Lock-In Amplifiers Using the dsPIC® DSC | AN1115 | dsPIC | Click here |
| MICROCHIP | DSC | Achieving Higher ADC Resolution Using Oversampling | AN1152 | Click here | |
| MICROCHIP | DSC | Bootloader for dsPIC30F/33F and PIC24F/24H Devices | AN1094 | PIC24F/24H, PIC30F/33F | Click here |
| TEXAS INSTRUMENTS | DSC | Running an Application from Internal Flash Memory on the TMS320F28xxx DSP (Rev. I) | TMS320F28xxx | Click here | |
| TEXAS INSTRUMENTS | DSC | EEPROM Emulation With the TMS320F28xxx DSCs | TMS320F28xxx | Click here | |
| TEXAS INSTRUMENTS | DSC | Optimizing Code Performance and Size for Stellaris Microcontrollers | Click here | ||
| TEXAS INSTRUMENTS | DSC | Clocking options for Stellaris Family Microcontrollers | Click here | ||
| TEXAS INSTRUMENTS | DSC | Advanced Linker Techniques for Convenient and Efficient Memory Usage | Click here | ||
| TEXAS INSTRUMENTS | DSC | Using PWM Output as a Digital-to-Analog Converter on a TMS320F280x (Rev. A) | TMS320F280x | Click here | |
| TEXAS INSTRUMENTS | DSC | Flash Programming Solutions for the TMS320F28xxx DSCs | Click here | ||
| TEXAS INSTRUMENTS | DSC | An Overview of Designing Analog Interface With TM320F28xx/28xxx DSCs (Rev. A) | TM320F28xx | Click here | |
| TEXAS INSTRUMENTS | DSC | TMS320F281x Boot ROM Serial Flash Programming | TMS320F281x | Click here | |
| FREESCALE | DSC | Smart Energy Brochure | Click here | ||
| FREESCALE | DSC | Design of Indirect Power Using the 56F800/E | AN1965 | 56F8000 Family | Click here |
| FREESCALE | DSC | Production Flash Programming for the 56F8000 Family | AN3118 | 56F8000 Family | Click here |
| FREESCALE | DSC | Solar Maximum Power Point Tracking and Solar Inverter Solutions with NXP DSCs | 56F8000 Family | Click here | |
| TEXAS INSTRUMENTS | Solar Power | TMS320C2000™ DSP Controllers: A Perfect Fit for Solar Power Inverters | C2000 Family | Click here | |
| INTERNATIONAL RECTIFIER | IGBT | Choose Your IGBTs Correctly for Solar Inverter Applications | Click here | ||
| Microchip | SMPS AC/DC Reference Design | DS70320B | Click here | ||
| Vishay | Resistors | Precision Resistors for Energy, Transportation and High-Temperature Applications | 103 | Click here | |
| Vishay | Resistors | “Mind the Gap”: High Precision Bulk Metal® Foil Resistors, Their Imposters and Impersonators | 118 | Click here | |
| Microchip | DSC | Phase-Shifted Full-Bridge (PSFB) Quarter Brick DC/DC Converter Reference Design Using a dsPIC® DSC | AN1335 | Click here | |
| Manufacturer | Product Type | AN Title | AN Number | Part Number | URL |
|---|---|---|---|---|---|
| NXP | DSC | Benefits and Applications Enabled by Expanded 56F8000 Digital Signal Controllers | Click here |
| NXP | DSC | 56F83xx Lends Hybrid Applications EEPROM Capability FlashEE | Click here |
| NXP | DSC | Novel Digital Signal Processing Architecture With Microcontroller Featuers | Click here |
| TEXAS INSTRUMENTS | MCU | Serial Wire Debug—Ideal for Microcontrollers | Click here |
| TEXAS INSTRUMENTS | DSP | The TMS320 DSP Algorithm Standard White Paper | Click here |
| TEXAS INSTRUMENTS | DSP | Optimizing Power Consumption in DSP Designs Whitepaper | Click here |
| TEXAS INSTRUMENTS | DSP | Enhance DMA Efficiently Manages Multiple Real-Time Data Streams White Paper | Click here |
| TEXAS INSTRUMENTS | DSP | Software and Hardware Design Challenges due to Dynamic Raw NAND Market | Click here |
| TEXAS INSTRUMENTS | DSP | Fixed vs. Floating Point white paper | Click here |
| Manufacturer | Product Type | White Paper Title | URL |
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| MICROCHIP | DSC | DM240001 Explorer 16 Development Board | DM240001 | DSPIC33 | Click here |
| MICROCHIP | DSC | Microstick for dsPIC33F and PIC24H Devices | DM330013 | DSPIC33F | Click here |
| MICROCHIP | DSC | Buck/Boost Converter PICtail™ Plus Daughter Board | AC164133 | DSPIC34F | Click here |
| MICROCHIP | DSC | PICtail Plus Daughter Board for dsPIC33 | DM240001 | DSPIC35F | Click here |
| TEXAS INSTRUMENTS | DSC | TMS320F2808 Experimenter Kit | TMDSDOCK2808 | TMS320F2808 | Click here |
| TEXAS INSTRUMENTS | DSC | F28035 Piccolo controlCARD | TMDXCNCD28035 | TMS320F28035 | Click here |
| TEXAS INSTRUMENTS | DSC | Delfino C28343 Experimenter's Kit | TMDXDOCK28343 | TMS320C28343 | Click here |
| TEXAS INSTRUMENTS | DSC | TMS320F2808 Experimenter Kit | TMDSDOCK2808 | TMS320F2808 | Click here |
| NXP | DSC | KIT, DEMO, MC56F8006 DSC BOARD | MC56F8006DEMO | MC56F8006 | Click here |
| NXP | DSC | KIT, EVALUATION BOARD, MC56F8037 | MC56F8037EVM | MC56F8037 | Click here |
| Manufacturer | Product Type | Evaluation Kits Title | EVKs Part Number | Part Number | URL |
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| MICROCHIP | Alternative Energy | Microchips Grid Connected Solar Microinverter Reference Design | Click here | |
| MICROCHIP | DSC | DSPIC33F: High Performance, 16-bit Digital Signal Controllers | Click here | |
| MICROCHIP | Solar Power | Grid Connected Solar Microinverter Reference Design | dsPIC33F family | Click here |
| MICROCHIP | DSC | dsPIC33FJ06GSXXX DSCs | dsPIC33FJ06GS | Click here |
| MICROCHIP | DSC | Grid-Connected Solar Micro Inverter Reference Design | Click here | |
| Manufacturer | Product Type | Training Title | Part Number | URL |
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