الفهرس | Only 14 pages are availabe for public view |
Abstract Due to the increase of the losses in the distribution systems to a ratio of up to 13% of the power generation and also a change in the voltage on the sides of loads either increase or decrease, the control devices are used to alleviate these events. Therefore, this thesis aims to reduce the power losses and improving the voltage profile of distribution system by using many devices such as voltage regulator, distribution network flexible AC transmission systems (DFACTS) devices that include two devices which are : Distribution STATIC Compensator (D-STATCOM) and Series Static Voltage Restorer (SSVR) as well as auto-transformer. This thesis presents also a proposed procedure to find optimal locations, tapping and sizes of these devices in distribution systems to minimize the total power losses and improve the voltage profile. JAYA algorithm is proposed JAYA to find the optimal location, tapping and sizes of these devices. The backward/forward sweep (BFS) algorithm is developed for load flow calculations. The proposed algorithm is applied to different standard test systems, which are IEEE 33-bus, and IEEE 69-bus radial distribution systems. The obtained results are compared with other methods in the literature. The comparative studies show the capability of voltage regulator, D-STATCOM, SSVR and auto-transformer for power loss reduction and voltage profile improvement in distribution system. |