TABLE OF CONTENTS In an ideal electroenergetic system, the voltage and frequency in the various points of power distribution must be constant, presenting only the fundamental component (with no harmonics contents) and a near-unity power factor. In particular, these parameters must be independent of the size and characteristics of the consumer loads; this can be obtained only if these loads are equipped with reactive power compensators to make the network independent from probable changes that appear in the distribution points.
Compensation of the loads is one of the techniques for controlling reactive power; hence to improve the quality of the energy in the AC transmission lines, this technique is generally used for the compensation of individual or a group of loads. This has three essential objectives, namely:
power factor correction (PFC);
improvement of the voltage regulation;
load balancing.
It is noted that PFC and load balancing are desired even when the supply voltage is virtually constant and independent of the load.
