Power Systems Steady-State Analysis

In steady-state analysis of power systems, any transients from disturbances are considered to have settled down, and the system state is considered as unchanging. Particularly, system loads including transmission system losses, are closely matched with power generation so that the system frequency is becomes constant.

The primary concern  during steady-state-analysis may be is economic operation of the system; reliability is also an important factor as the system must be operated to avoid out as disturbances occur. The primary analysis tool for steady-state operation in power systems is the so-called power flow analysis, in this analysis the voltages and power flow through the system are figured out. This important analysis is widely used for the operation and feasibility studies and it is also helpful throughout the system at both the high & low transmission voltages.

There are 3 mjor componets of power systems sub components. these  are generation, transmission and distribution, and load. The transmission and distribution are comprised of

·       power transformers,

·       transmission lines,

·       capacitors,

·       reactors,and

·       protection devices.

The most of  the generation is produced by the help of synchronous generators. Where as the Loads consist of a great number and a diverse assortment of devices, for the supply to home appliances and providing lighting to heavy industrial equipment and sophisticated and sensitive electronic units. As such, modeling the overall effect is a challenging aspect in power system analysis.