28-08-2017, 01:35 PM
There is a continuous increase in the demand for electrical energy. To cope with this rise, growth in generation is essential, which is not always possible due to various constraints such as environmental, financial, resource, land, etc. The expansion of the transmission network is not always easy. Due to these problems, the entire power system operates at its maximum capacity, which can lead to problems of stability, voltage collapse and grid failure. To provide a stable, secure and quality power supply to end users and to utilize the best available transfer capacities, Flexible AC Drive Systems (FACTS) controllers are used to improve the stability of the power system together With its main application of power flow control.
In the control of Electric Power Systems, systems and procedures are used to dynamically compensate for the detrimental effects of non-linear loads. The compensation process must be carried out without significant alteration of the quality of the source signal. Some benefits are anticipated by reducing the compensation of losses in distribution lines, reducing harmonic content and improving the power factor. The dynamic behavior of industrial loads requires the use of a compensator that can be adapted to load changes. Unfortunately, frequently used techniques for compensation are based on circuit controllers that alter the waveform of the signal under control. This is the case of the static compensator (Miller, 1982; Lee et al., 1992), which must perform harmonic cancellation, reactive power compensation, power factor correction and energy saving. Although the static compensator is commonly used and studied under conditions of sinusoidal voltage, the waveforms corresponding to the controlled current have a high harmonic content
In the control of Electric Power Systems, systems and procedures are used to dynamically compensate for the detrimental effects of non-linear loads. The compensation process must be carried out without significant alteration of the quality of the source signal. Some benefits are anticipated by reducing the compensation of losses in distribution lines, reducing harmonic content and improving the power factor. The dynamic behavior of industrial loads requires the use of a compensator that can be adapted to load changes. Unfortunately, frequently used techniques for compensation are based on circuit controllers that alter the waveform of the signal under control. This is the case of the static compensator (Miller, 1982; Lee et al., 1992), which must perform harmonic cancellation, reactive power compensation, power factor correction and energy saving. Although the static compensator is commonly used and studied under conditions of sinusoidal voltage, the waveforms corresponding to the controlled current have a high harmonic content