For transmission planning, there are three levels of aspects, such as long term planning, medium-term planning, and short term planning. Transmission planning is played a vital role in demand forecasting and to determine future load increases.
You can find out more about the planing of the transmission network and what kind of parameters are come to focus when we think on the power transmission plan.
Long term Transmission Planning
Long term planning essential to carry out with a horizon of 15 to 25 years, and it’s based on the load frost and generation plan of the area or particular region.
So long term plans serve to verify the technical feasibility of Which is very important in selecting a generation plan.
Long term transmission planning determines the long-term strategic development of the transmission system.
It is essential to have a long term transmission plan for any country to conduct strategic implementations.
This planing also useful to develop infrastructure in the future. Most of the funds and loan grants are based on the power industry is heavily dependent on this long term transmission planning.
Medium Term Transmission Planning
The medium-term planning is carried out over 10-15 years of the period.
Medium-term transmission planing is used for pre-feasibility evaluation of the alternative associated with the generation.
Specific power system requirements, which based on long- term development strategy provided by the master plan (long term transmission plan).
Most of the medium-term transmission plan is the subsection of long term planning, which emphasizes more information and detail planings.
This also contains the development process of supervisory control and data acquisition (SCADA) in a particular area.
Short term Transmission Planning
Short term planning is where it carried out throughout 5 to 10 years of a short period.
It is carried out in connection with the feasibility and design of specific projects that have been selected from the medium-term plan.
Or it could be a response to unforeseen changes in generation and load requirements being change or drastically going in for replacements.
Nature of Load Forecasting:
Then the quality of the load forecast used for planning study varies with each type of transmission planning.
In a long term study, estimates are generally carried out on a total system basis and sometimes subdivided into operating areas or districts within the entire systems.
In the case of medium-term and short term studies, the focus is mainly on specific projects within a smaller geographical area. So this is how the transmission planning is typically done
The transmission system usually evolved based on detailed power system studies, which shall include any plan of transmission or for the recitation. This study has to be conducted, which as follows.
- Power flow studies
- Short circuit studies
- Stability Studies ( Include transient stability, voltage stability, and steady-state oscillator stability studies)
- EMTP studies to determine switching and temporary overvoltages.
The voltage stability, Oscillatory stability, and EMTP studies may not form the part of the long term planning.
However, these studies are required to be done before any scheme report is finalized. Transmission planning will give an idea for a proper establishment of the power transmission network.
So this was about the transmission activities and planning of the transmission network.
Conclusion:
Transmission plan can be classified into three such as Long term transmission planning, medium-term transmission, and short term transmission planning.
This planing is vital for the development of the electrical industry in any country.
The nature of load forecasting leads to implement the mention transmission playing in a very effective way.
