EPE-PEMC 2004 - Topic 12-5: Generator excitation systems | ||
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![]() | Comparison Of Different Methods Of Excitation Control For A Synchronous Generator
By Neven Bulic, Gorislav Erceg, Tomislav Idzotic | |
Abstract: Two different way of excitation control 75 kVA
synchronous generator is considered in this article. First way is
with adaptive neuron and the other way is with PI controller.
This is simulation and experiment of real synchronous
generator connected on the network with reactance X=17 %.
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![]() | Comparison Of The Excitation Control Of A Synchronous Generator With Fuzzy Logic Controller And PI Voltage Controller
By Damir Sumina, Gorislav Erceg, Tomislav Idzotic | |
Abstract: This article is focused on the simulation and
implementation of simple fuzzy logic excitation control of a
synchronous generator. In MATLAB/SIMULINK is simulated
model of the synchronous generator connected to an AC system.
A simple fuzzy logic control scheme is simulated for voltage
control and generator stabilization. This simulation is compared
with the behaviour of the real laboratory model, which include
digital regulation system (based on four DSPs) and synchronous
generator connected to an AC system. The behaviour of the
excitation system with fuzzy logic controller is compared with
excitation system based on the PI voltage controller.
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![]() | Limitation Of Minimal Excitation Current By Load Angle Regulation
By Tomislav Idzotic, Gorislav Erceg, Damir Sumina | |
Abstract: A synchronous generator connected to an AC system
in capacitive operating mode is near its stability limit. In such
conditions, if some disturbances in the system appear, a
synchronous generator could lose the synchronism. The
classical solution of this problem is to keep a generator in
stabile operating range of P-Q diagram by limiting the minimal
excitation current. This article analysis impact of additional
control algorithms which are included in classical excitation
regulation system with the purposes of keeping a generator in
synchronism when some disturbances appear and generator is
near its stability limit. These control algorithms include load
angle estimation by corresponding P-Q diagram and load angle
regulator which task is to keep the load angle of a synchronous
generator operating in capacitive mode on the reference value
so that generator remains in synchronism.
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