الفهرس | Only 14 pages are availabe for public view |
Abstract The present research work deals with the experimental and the theoritical behaviour of the compensating capacitor, connected in parallel to the distribution feeder of the electric power. The effect of the compensating capacitor on the active power loss on the distribution feeder is studied. To clearify this effect, a distribution feeder is simulated in the laboratory, to show the effect of changing the location of the compensating capacitor, on the reduction of the active power loss on the distribution feeder. Also the optimal location of the compensating capacitor, that maximize the reduction of the active power loss on the distribution feeder experimentally. is studied, theoritically and The effect of the changes in the rating of the compensating capacitor, on the active power loss reduction on the feeder is also studied. The change of the equivalent compensation level is performed experimentally using an inductor and a group of SCR’s, in parallel with a capacitor. The use of the inductor and the compensation level fed to the feeder, 13 SCR’s, changes the and this action is dynamically operated, control circuits, to using a group of electronic, and fire the gates of the SCR’s with a firing angle according to any required level of compensation. Connecting the compensating capacitor at the optimal location, and putting the control circuits at on condition, the active power loss on the distribution feeder will be minimum during the 24 hours of operation at any load level. This thesis is composed of 5 chapters discussing a modern method of loss reduction on distribution feeder, using a dynamic compensation closed loop system, which utilizes a single compensating capacitor, reactor, silicon controlled rectifiers and a group of control circuits. Chapter 1 is an introduction to the thesis, discussing many previous researches that use the capacitor for compensation in order to reduce the losses distribution feeder. Chapter 2 is a review of the previous literatures and previous works done by many researchers in the field of the application of the compensating capacitor to reduce the active power loss on the distribution feeders. on the |