Behavior Analysis of Synchronous Generator Controllers in Distributed Generation Systems
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Behavior Analysis of Synchronous Generator Controllers in Distributed Generation Systems Antonio Manoel Batista da Silva1,2 · Geraldo Caixeta Guimarães3 · Marcelo Lynce Ribeiro Chaves3 · André Roger Rodrigues4 · Márcio Augusto Tamashiro5 · Raul Vitor Arantes Monteiro3
Received: 11 April 2016 / Revised: 1 August 2016 / Accepted: 21 August 2016 © Brazilian Society for Automatics–SBA 2016
Abstract Computer simulations involving electric power systems need to be implemented upon structures that execute actions and which are able to reach specific proposals for switching and control. This very question is incorporated into the underlying proposal of this paper, which is shown through the presentation of an analysis performed using the software Alternative Transients Program, where the two main resources: MODELS language simulation and Transients Analysis of Control Systems were used in order to simulate the performance of the distributed generator controllers under different modes of operation and analyze their influence on the stability of an industrial plant. In those simulated cases, where disturbances were encountered, causing the opening and closing of switching commands, the regulators output signals are modified, thus controlling the behavior of the electrical and mechanical magnitudes associated with the generators. The obtained results show the performance of distributed generator controllers as adequate, in that they guarantee the stability of the industrial system, when responding to alterations in its operating conditions.
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Antonio Manoel Batista da Silva [email protected]
1
University of Uberaba (UNIUBE), Av. Nenê Sabino1801, Uberaba, MG CEP 38055-500, Brazil
2
University Centre of Barretos (UNIFEB), Av. Frade Monte 389, Barretos, SP CEP 14783-226, Brazil
3
Federal University of Uberlandia (UFU), Av. João Naves de Ávila 2121, Uberlandia, MG CEP 38408-100, Brazil
4
Federal Institute of Minas Gerais (IFMG), Av. Padre Alberico 440, Bairro São Luiz, Formiga, MG CEP 35570-000, Brazil
5
Federal Institute of Tocantins (IFTO), Av. Joaquim Teotônio Segurado, Quadra 201 Sul, Conj. 01, Lt. 09, Palmas, TO CEP 77015-200, Brazil
Keywords ATP computer simulation · Electrical machines · Models · TACS · Voltage regulators · Speed regulators
1 Introduction Distributed generation systems (DGs) that encompass industrial plants with cogeneration normally contain synchronous generators that operate in parallel with the electric power network. A common feature of these generators is that they possess two types of controller: the controller for the excitation system and the controller for turbine velocity. The first type of controller is capable of operating under two modes: the voltage regulator mode, when the generator operates as a machine that sustains voltage level and the power factor regulator mode, when the machine has to follow the incoming system voltage. Then, there is the second type, the speed controller, this also can operate under two different modes: in isochronous mode or in droop. Usually
