Bøger af Amin Khodadadi

Protection of the power system and its large and small equipment is one of the most important tasks that must be done in the best way to ensure the stability, sustainability and constant activity of the system. This issue is especially important in the electric energy distribution system, which is the most extensive part in a large power system, Because, on the one hand, most errors occur in the distribution network, and on the other hand, its close relationship with electric energy consumers increases the necessity of its correct and continuous function. The correct function of the distribution network depends not only on its design accuracy, but also depends on the correct regulation of protective equipment, because the correct and timely regulation makes the faults in the distribution network quickly and accurately resolved and the quality of power supply improves.

Currently, the use of distributed intelligence with microprocessors that communicate through optical fibers and the use of personal computers as human-machine interfaces is common. Therefore, new developments are constantly being made in this area, and as a result, costs are reduced and performance is improved. In addition, more trained personnel are familiar with this new technology. The heavily centralized, top-down systems used in the 1960s and 1970s are no longer appropriate, as decentralized systems can more easily adapt to future changes than centralized systems. In addition, different generations of equipment made by different manufacturers can be easily combined in them. Updating or expanding such a distributed system is simple. For example, in the following, a comparison between a common electric high pressure post and a fully automatic high pressure post using digital technology has been made.

We live in a world where oil, gas and coal reserves are running out. This statement may be sad, but it is good news because the high consumption of these fuels has accelerated the process of global warming. Unfortunately, since about 80-90% of the energy needed in the whole world is provided by fossil fuels, it is not possible to reduce their consumption overnight. But there is a question: what can be done now that renewable energies such as solar or wind energy cannot play the main role in the field of energy supply? One solution is to shift some of our power plants to different systems called Combined Heat and Power (CHP). The simultaneous production of electricity and heat provides the possibility of better efficiency than fossil fuels for providing energy with about 15-40% energy storage. These power plants perform well both in terms of cost reduction and environmental impact reduction.