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Application of a multivariable feedback linearization scheme for STATCOM control
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DOI：10.1016/S0378-7796(02)00011-1.png)
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Abstract
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This paper investigates application of a multivariable control technique to the multi-input multi-output (MIMO) nonlinear model of a static synchronous compensator (STATCOM). The proposed controller design is based on a feedback linearization scheme. Its prime goal is the coordinated control of ac and do voltage for a STATCOM installed in a power distribution system. First, the nonlinear mathematical model of STATCOM along with the distribution system is derived. Then, by using input-output feedback linearization, a state feedback control law is obtained by pole placement. The efficacy of the control strategy is evaluated by digital computer simulations on the complete system for various types of loads and/or disturbances. The comparative study of these results with those obtained in a conventional cascade control architecture establishes the elegance of this new control scheme. (C) 2002 Elsevier Science B.V. All rights reserved.
Keywords:
static synchronous compensator
distribution system
feedback linearization
nonlinear control
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