PQFA Instructions Manual
Asea Brown Boveri Jumet S.A.
13
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.
4.1.1. PQF current generator.
The power circuit of the ABB active filter PQF is represented hereafter.
Output
Filter
PWM inverter
Main Breaker
Power
Lines
+
-
PWM Reactors
Preload
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.
Non-linear load(s)
(three-phase or
single-phase)
PQF Digital
Control
Compensation
current
Current
measurement
PQF current
generator
Содержание PQFA
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