Harmonic currents module

Harmonic Load Flow Software

With ESMOgrid Harmonic Analysis module, you can simulate harmonic current and voltage sources, identify harmonic problems, reduce nuisance trips, design and test filters, and report harmonic voltage and current distortion limit violations. Comprehensive load flow and frequency scan calculations are performed using detailed harmonic source models and power system component frequency models. Results are shown graphically, including harmonic order, harmonic spectrum plots, and harmonic waveform plots, as well as Reports.

Harmonic Load Flow Analysis and Features

  • Comply IEEE 519 Standard
  • Harmonic voltage and current distortion evaluation (THDu & THDi)
  • Automatic alerts of harmonic violations
  • Typical and user definable harmonic sources library
  • Variable Frequency Drive (VFD) harmonic modeling
  • UPS AC input and output modeling for harmonic orders
  • Photovoltaic array inverter modeling for harmonic orders
  • Embedded Newton-Raphson and Gauss-Seidel load flow methods
  • Harmonic current injection method
  • Integrated with cable sizing in order to size cables based on harmonic load flow

ESMOGrid and Standarts

  • IEEE 519
  • ANSI/IEEE 399
  • IEEE141