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Development of an adaptive controller prototype for synchronized switching of circuit breakers applied to transmission lines three-phase reclosing maneuver

Grant number: 11/09280-0
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): October 01, 2011
Effective date (End): September 30, 2013
Field of knowledge:Engineering - Electrical Engineering - Power Systems
Principal researcher:Maria Cristina Dias Tavares
Grantee:Patricia Mestas Valero
Home Institution: Faculdade de Engenharia Elétrica e de Computação (FEEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

During transmission lines energization and reclosing maneuvers, a way to limit transient overvoltages is through the controlled switching. Using this method, a delay in circuit-breaker enables that the maneuver occurs in optimal timing, minimizing overvoltages, which allows that the controlled switching replaces other methods, more complex and more expensive as is the case of pre-insertion resistor.During the PhD period, was developed an adaptive controlled switching method for three phase reclosing shunt compensated transmission lines. This method enables to reduce the overvoltage and make the reclose in a shorter time than the provided by the controller existing in the market, thereby reducing the time of power supply interruption.After testing realized successfully using a program for electromagnetic transients simulation (PSCAD / EMTDC), the proposed method was tested using the Real Time Digital Simulator (RTDSTM). The real-time simulations also demonstrate the method efficiency.In this context, the post-doctoral project focuses on prototype development of the developed method for three-phase reclosing that allows to test the algorithm in field. The project includes the prototype performance evaluation, considering a wide range of parameters.

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Filed patent(s) as a result of this research project

MÉTODO DE CONTROLE ADAPTATIVO PARA RELIGAMENTO TRIPOLAR DE LINHAS COMPENSADAS SUBMETIDAS A FALTAS INTERNAS BR1020150239408 - Universidade Estadual de Campinas (UNICAMP) . Maria Cristina Dias Tavares; Patricia Mestas Valero - September 2015, 17

Solicitação em análise e dentro do prazo legal de sigilo previsto na legislação PCT/BR2016/000093 - Universidade Estadual de Campinas (UNICAMP) . Solicitação em análise e dentro do prazo legal de sigilo previsto na legislação - September 2016, 15