Inductive Load Analysis
ABSTRACT: In the present world which is continuously looking towards advancement in technology power is very precious. So it is necessary to find out the causes of power pollution and methods must be adopted to minimize the same. Industries mainly have inductive and nonlinear loads. Thus the overall power factor of industries are very low due to the increased intake of reactive power by the inductive loads Embedded technology comes into picture for the very first time when we are thinking about any programmable device for power factor improvement.. So we need to find out the causes of power loss and improve the power system. Due to industrialization the use of inductive load increases and hence power system losses its …show more content…
LITERATURE SURVEY:
The paper entitled “A high performance single phase rectifier with input power factor correction ,” the authors P. N. Enjeti and R Martinez have proposed the approach has many advantages, including fewer semiconductor components, simplified control, and high-performance features, and satisfies IEC 555 harmonic current standards. Simulation and experimental results obtained on a laboratory prototype are discussed.
The paper entitled “An Overview of Power Factor Improvement Techniques in Domestic and Industrial Loads”, the author’s Silpa Thomas, Anjali Shalimar, Unnikrishnan L. have proposed the a suitable circuit for Automatic power factor correction can be developed and the same technique can be applied to the industries, power systems and households such that stability of the system can be increased. . It is economical to use microcontroller for the development of the
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The input AC voltage is given to a current transformer and a voltage transformer. This part of the system is referred as comparator section. Voltage transformer step down the input voltage and current transformer is used to extract the waveforms of current. The output of the voltage transformer is proportional to the voltage across the load and output of current transformer is proportional to the current through the load. The output of both voltage transformer and current transformer is given to a comparator which acts like a zero crossing detector. Comparators are constructed using LM358 op-amp. The output of the comparator changes during the zero crossing of voltage and current waveform. These outputs are given to the PIC which does the further power factor
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