The advantages of using FACTS devices in electrical transmission systems are described below.
1. MORE UTILIZATION OF EXISTING TRANSMISSION SYSTEM
In all the countries, the power demand is increasing day by day to transfer the electrical power and controlling the load flow of the transmission system is very necessary this can be achieved by more load centers which can change frequently.
Addition of new transmission line is very costly to take the increased load on the system; in that case FACTS devices are much economical to meet the increased load on the same transmission lines.
2. MORE INCREASED TRANSIENT AND DYNAMIC STABILITY OF THE SYSTEM
The Long transmission lines are inter-connected with grids to absorb the changing the loading of the transmission line and it is also seen that there should be no line fault creates in the line / transmission system. By doing this the power flow is reduced and transmission line can be trip. By the use of FACTS devices high power transfer capacity is increased at the same time line tripling faults are also reduces.
3. INCREASED MORE QUALITY OF SUPPLY FOR LARGE INDUSTRIES
New industries wants good quality of electric supply, constant voltage with less fluctuation and desired frequency as mentioned by electricity department . Reduce voltage, variation in frequency or loss of electric power can reduce the manufacturing of the industry and cause to high economical loss. FACTS devices can helps to provide the required quality of supply.
4. BENEFICIAL FOR ENVIRONMENT
FACTS devices are becoming environmentally friendly. FACTS devices does not produce any type of waste hazard material so they are pollution free. These devices help us to deliver the electrical power more economically with better use of existing transmission lines while reducing the cost of new transmission line and generating more power.
5. INCREASED TRANSMISSION SYSTEM RELIABILITY AND AVAILABILITY
Transmission system reliability and availability is affected by many different factors. Although FACTS devices had ability to reduce such factors and improves the system reliability and availability.
APPLICATIONS AND TECHNICAL BENEFITS OF FACTS DEVICES
The basic technical benefits of the FACTS devices includes
(1) Problems of voltage limit
(2) Addressing in steady state applications
(3) Problems of thermal limits,
(4) Problems short circuit levels and
(5) Problems of sub-synchronous resonance