Partial Feedback Linearizing Controller Design for a DSTATCOM to Enhance Voltage Stability of Distribution Network with Distributed Generation

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Mahmud, MMA
Pota, HR
Hossain, MJ
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IEEE Organising Commitee

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2012
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Auckland, NEW ZEALAND

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Abstract

This paper presents a nonlinear controller design for a DSTATCOM connected to a distribution network with distributed generation (DG) to regulate the line voltage by providing reactive power compensation. The controller is designed based on the partial feedback linearization which transforms the nonlinear system into a reduced order linear system and an autonomous system whose dynamics are known as internal dynamics of the system. This paper also investigates the stability of internal dynamics of a DSTATCOM as it is a basic requirement to design partial feedback linearizing controllers. The performance of the proposed controller is evaluated in terms reactive power compensation to enhance the voltage stability of distribution networks with DG.

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2012 IEEE INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY (POWERCON)

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Electrical energy generation (incl. renewables, excl. photovoltaics)

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