Harmonic frequency scan and load flow components.

The Harmonic Frequency Scan (HFS) is one of the options under ATP | Settings / Simulation. General load flow specification is given under ATP|Settings/Load flow.

Selection

Object name

Icon

ATP card

Description

RLC Phasor

RLC_PHASOR

BRANCH

RLC component only present during steady-state (t<0)

PQU Phasor

PQU_PHASOR

BRANCH

RLC component only present during steady-state (t<0)

Cigre load 1 ph

CIGRE_1

BRANCH

type 0

Single-phase CIGRE load

Cigre load 3 ph

CIGRE_3

BRANCH

type 0

3-phase CIGRE load

Linear RLC

RLC_F

BRANCH

type 0

Linear RLC for HFS studies

HFS Source

HFS_SOUR

SOURCE

type 14

Harmonic frequency source

Load flow PQ

LF_PQ

SOURCE

Load flow

Load flow component with active and reactive power restriction

Load flow UP

LF_UP

SOURCE

Load flow

Load flow comp. with voltage and active power restriction

Load flow TQ

LF_TQ

SOURCE

Load flow

Load flow component with angle and reactive power restriction

Selecting HFS under ATP | Settings / Simulation will run the ATP data case so many times as specified in the Harmonic source component dialog box. The frequency of the harmonic source will for each ATP run be incremented. In the example shown at left, 5 harmonic components are specified in the F/n column, and the ATP data case will run 5 times.