TIDUEZ9B July   2022  – April 2023

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1System Description
    1. 1.1 Isolated Current Measurement
    2. 1.2 Band-Pass Filter
    3. 1.3 Analog-to-Digital Conversion
    4. 1.4 Arc Detection Algorithm
    5. 1.5 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 Current Transformer Circuit
      2. 2.2.2 Analog Band-Pass Filter
      3. 2.2.3 Analog-to-Digital Conversion
      4. 2.2.4 Power Supply
      5. 2.2.5 Debugging and Status Indication Options
    3. 2.3 Highlighted Products
      1. 2.3.1 TPS259474
      2. 2.3.2 TPS562202
      3. 2.3.3 TPS745
      4. 2.3.4 OPAx322
      5. 2.3.5 ADS8363
      6. 2.3.6 REF5025
      7. 2.3.7 TMDSCNCD280049C
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware and Software Requirements
      1. 3.1.1 Hardware
      2. 3.1.2 Software
        1. 3.1.2.1 Arc Detection Theory
        2. 3.1.2.2 Software Implementation
    2. 3.2 Test Setup
      1. 3.2.1 ControlCARD Configuration
      2. 3.2.2 Setup for Hardware and Software Validation
      3. 3.2.3 Setup for Arc Testing
    3. 3.3 Test Results
      1. 3.3.1 Test Results of Hardware and Software Validation
      2. 3.3.2 Testing With Arcs
  9. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Tools and Software
    3. 4.3 Support Resources
    4. 4.4 Trademarks
  10. 5About the Author
  11. 6Revision History

3.2.3 Setup for Arc Testing

For the actual arc detection setup, the following hardware is necessary:

  • One TIDA-010231 board
  • C2000 controlCARD TMDSCNCD280049C
  • DC power supply to provide 8-V to 16-V auxiliary supply to J2. Limit the current to 0.5 A. For polarity refer to Figure 3-2
  • DC source or PV emulator in the role of a solar panel or solar string
  • Solar inverter (for which the arc detection is optimized)
  • Arc generator, for producing arc faults in a controlled way
  • All necessary safety equipment to do these high-voltage arcing experiments in safe environment
WARNING: High voltages and high currents are present in this experiment to produce open arcs. Take all the necessary protective measures to prevent harm. Put the arc generator as well as the arc detection board inside a safety box, to prevent contact to high voltages. Make sure that all conductors carrying high voltages are protected against touch.

Figure 3-2 shows the block diagram of the arc detection test setup.

The software setup is identical to the hardware validation setup.

GUID-20220614-SS0I-Z3LG-PFMB-WH9BMWVZ2LZV-low.svg Figure 3-2 Arc Detection Test Setup