Components Description And Identification; Components Description; Pqf Current Generator - ABB PQFA Instruction Manual

4. Components description and identification

4.1.

Components description

As already explained, the active filter is basically composed of two parts: the
current generator and the control system.
PQF Digital
Control

4.1.1. PQF current generator.

The power circuit of the ABB active filter PQF is represented hereafter.
Power
Lines
PWM inverter
The main components are:
- PWM inverter
PWM reactors
-
Output filer
-
- Preloading circuit
The current generator is physically organised in power modules, each
including a PWM inverter, three PWM reactors and the output filter.
Each PQFA cubicle may contain one or two power modules. There is one
breaker and one preloading circuit per cubicle.
Current
measurement
Preload
PWM Reactors
+
-
Asea Brown Boveri Jumet S.A.
PQFA Instructions Manual
Non-linear load(s)
(three-phase
single-phase)
Compensation
current
PQF current
generator
Main Breaker
Output
Filter
or
13