Harmonic Frequency Scan
Harmonic Frequency Scan Analysis
This allows any parallel resonance condition and its resonance frequency can be clearly identified. The study also allows users to tune their harmonic filter parameters and test the final results. The frequency range for scanning is defined by the user, which starts from the fundamental frequency and can go as high as the user needs. The impedance of elements such as cables is user-definable over the range of the frequency scan to account for the effect of especial cable physical constructions.
The results from the harmonic frequency scan study are reported in reports which includes the system input data, and a tabulation listing bus driving point impedances. The same tabulated information is also given on the one-line diagram, as well as in a plot format.
Harmonic Frequency Scan Software Key Features
- Identify resonance conditions
- Report resonance frequencies and magnitudes
- Same system and component modeling capabilities for harmonic load flow and fundamental load flow
- Built-in harmonic filters in different types
- Automatic harmonic filter sizing based on different criteria
- User-definable harmonic frequency scan range and step
- User-customizable plots
- User-definable cable impedance for all harmonic frequencies (designed for marine cable applications)
Benefits & Capabilities
- Slider bar to display bus driving point impedance magnitude and phase angle at selected frequencies
- Graphic plots of bus driving point impedance in ohms for viewing and printing
- Graphic plots of bus driving point impedance phase angle for viewing and printing
- Text report for input data, fundamental load flow results, tabulated bus driving point impedance magnitudes and phase angles
- Modeling of frequency dependency of rotary machine impedance
- Modeling of nonlinearity and frequency dependency of cable/line and transformer impedance and conductor skin effect
- Modeling of frequency dependency of other power system components and loads
- Considers machine and transformer winding connections and grounding types
- User-definable frequency range
