This paper presents the control of distribution static synchronous compensator (DSTATCOM) for reactive power, harmonics and unbalanced load current compensation of a diesel generator set for an isolated system. The control of DSTATCOM is achieved using least mean square-based adaptive linear element (Adaline). An Adaline is used to extract balanced positive-sequence real fundamental frequency component of the load current and a proportional-integral (PI) controller is used to maintain a constant voltage at the dc-bus of a voltage-source converter (VSC) working as a DSTATCOM. Switching of VSC is achieved by controlling source currents to follow reference currents using hysteresis-based PWM control. This scheme is simulated under MATLAB environment using Simulink and PSB block-set toolboxes for feeding linear and nonlinear loads. The modeling is performed for a three-phase, three-wire star-connected synchronous generator coupled to a diesel engine, along with the three-leg VSC working as a DSTATCOM. Results are presented to verify the effectiveness of the control of DSTATCOM for the load compensation and an optimal operation of the DG set.
[1]
Gil D. Marques.
A comparison of active power filter control methods in unbalanced and non-sinusoidal conditions
,
1998,
IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200).
[2]
Kamal Al-Haddad,et al.
An improved control algorithm of shunt active filter for voltage regulation, harmonic elimination, power-factor correction, and balancing of nonlinear loads
,
2000
.
[3]
Bernard Widrow,et al.
30 years of adaptive neural networks: perceptron, Madaline, and backpropagation
,
1990,
Proc. IEEE.
[4]
B. Widrow,et al.
The complex LMS algorithm
,
1975,
Proceedings of the IEEE.
[5]
W. Marsden.
I and J
,
2012
.
[6]
Olimpo Anaya-Lara,et al.
Power Electronic Control in Electrical Systems
,
2013
.