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An electronic load controller (ELC) is developed for an isolated asynchronous generator (IAG) to feed 3-phase, 4-wire consumer loads in a small hydro power generation system. This ELC consists of ac capacitors, voltage source converter (VSC) with a dc capacitor, a chopper, an auxiliary load at its dc bus, a star/hexagon transformer, consumer loads and it is implemented using synchronous-reference-frame...
This paper deals with a decoupled electronic load controller (DELC) for an isolated asynchronous generator (IAG), used in constant power pico hydro power generation for feeding three-phase four-wire loads. The proposed DELC is used to control the voltage and frequency in the decoupled manner. The proposed decoupled electronic load controller is combination of a voltage regulator (VR) for regulating...
This paper deals with the control of voltage and frequency of an isolated wind energy conversion system (WECS) based on capacitor excited asynchronous generator and feeding 3-phase 4-wire loads. The proposed controller consists of an IGBT (insulated gate bipolar junction transistor) based 4-leg voltage source converter (VSC) and a battery at DC link. Three legs of the converter are connected to each...
This paper deals with a voltage and frequency control of an isolated asynchronous generator feeding 3-phase 4-wire loads in constant power applications where terminal voltage, excitation capacitor, speed and generated power of the generator remain constant under all operating conditions. The proposed controller functions as an improved electronic load controller (IELC) to regulate the frequency and...
This paper deals with an investigation on a controller, which regulates the voltage and frequency of an isolated asynchronous generator (IAG) driven by an uncontrolled pico hydro turbine to feed 3-phase 4-wire loads. The proposed controller is having capability to regulate the voltage and frequency in decoupled manner. A STATCOM (static synchronous compensator) is used to control the reactive power...
This paper deals with a battery energy storage system (BESS) based voltage and frequency (VF) controller for parallel operated isolated asynchronous generators (IAGs) driven by uncontrolled pico hydro turbines used in constant power applications. The individual AC capacitor banks are used to generate the rated voltage at no load while additional demand of reactive power for the load and generators...
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