SPRACR6 April   2020 TMS320F280023-Q1 , TMS320F280023C , TMS320F280025C , TMS320F280025C-Q1 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1 , TMS320F28384D , TMS320F28384D-Q1 , TMS320F28384S , TMS320F28384S-Q1 , TMS320F28386D , TMS320F28386D-Q1 , TMS320F28386S , TMS320F28386S-Q1 , TMS320F28388D , TMS320F28388S , TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DK-Q1

 

  1.   Distributed Power Control Architecture With Multiple MCUs Over FSI
    1.     Trademarks
    2. 1 Introduction
    3. 2 Distributed Power Control Architecture
      1. 2.1 Distributed Power Control Architecture – DC/AC System
      2. 2.2 Distributed Power Control Architecture – AC/DC System
      3. 2.3 Distributed Power Control Architecture – DC/DC System
    4. 3 DC/AC System - Power Topologies
      1. 3.1 MPPT DC/DC Stage
      2. 3.2 DC/AC Inverter Stage
    5. 4 C2000 Controller Configuration for DPCA DC/AC System
    6. 5 Communication Interface – FSI for DPCA DC/AC System
      1. 5.1 FSI Star Connection
      2. 5.2 FSI Daisy Chain Connection
      3. 5.3 FSI Frame
      4. 5.4 FSI Transmission Latencies
    7. 6 Summary
    8. 7 References

6 Summary

DPA approach provides many advantages for power conversion solutions that require a wide range of output power and output voltages. This white paper presents the application of C2000 MCUs in implementing control of such DPA systems. This approach essentially implements a DPCA system using multiple C2000 MCUs, taking full advantage of its CPU, flexible control peripherals and the fast serial interface (FSI). The document starts with an overview of C2000 MCU based DPCA for different power conversion systems. Then, a case study of solar string inverter DPCA system has been presented in detail with different types for FSI network connections. Finally, an example calculation on FSI transmission and loop delay for this system has been presented for the system designers as a guideline, allowing them to distribute appropriate tasks between multiple MCUs in the system.