JPEEE1436 Adaptive PI Control of STATCOM for Voltage Regulation

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Ingénierie

ADAPTIVE PI CONTROL OF STATCOM FOR
VOLTAGE REGULATION
ABSTRACT:
STATCOM can provide fast and efficient reactive power support to
maintain power system voltage stability. In the literature, various STATCOM
control methods have been discussed including many applications of proportional-integral
(PI) controllers. However, these previous works obtain the PI gains via a
trial-and-error approach or extensive studies with a tradeoff of performance and
applicability. Hence, control parameters for the optimal performance at a given
operating point may not be effective at a different operating point. This paper
proposes a new control model based on adaptive PI control, which can self-adjust
the control gains during a disturbance such that the performance always matches a
desired response, regardless of the change of operating condition. Since the
adjustment is autonomous, this gives the plug-and-play capability for STATCOM
operation.

BLOCK DIAGRAM
ac source
CONTROLLER CIRCUIT:
 PIC controller
OUTPUT:
 Hardware
 Simulation
TOOLS:
 MP Lab
 Orcad/Pspice
STATCOM
Output
Driver unit
Controller

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