TK94 : Robust Control Systems Design for Parallel-Connected PWM inverters
Thesis > Central Library of Shahrood University > Electrical Engineering > MSc > 2008
Authors:
Abstarct: In recent years, Pulse Width Modulation (PWM) inverters have found wide applications
in power systems. Utilizing parallel operation of inverters cause to obtain a larger power
capacity and to improve system reliability. Control problems for parallel-connected
inverters are tight output voltage regulation and proper current distribution among
inverters. In this research, three different control systems are employed. The first
control system is baxsed on Characteristic Loci method (Approximate Commutative
Controller). The second and the third control systems are H∞ and LQG controllers. For
proper current distribution, ACSS and 3C techniques are used. Simulation results of
single, double and triple inverter systems with different kind of loads and parametric
uncertainties are investigated in Matlab software. The simulations have demonstrated
the validation of operation of control systems in voltage regulation and current
distribution. In addition, the operations of the control systems, which have been applied
on parallel-connected inverters, are compared with each other for different criteria.
Keywords:
#Parallel-connected PWM inverters #Voltage regulation #Equal current distribution #Robust control systems. Link
Keeping place: Central Library of Shahrood University
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Keeping place: Central Library of Shahrood University
Visitor: