What are the operation modes of power system?

1. Time domain: divided into annual, quarterly and daily operation modes (normal operation mode);

2. According to the system state, it can be divided into normal operation mode, accident operation mode and special operation mode (also called maintenance operation mode).

Annual operation mode is a pre-arranged operation strategy according to the maintenance plan, infrastructure, technical transformation work plan, power generation output and load growth forecast of the power grid in the next year.

The annual operation mode needs to be reported to the superior for approval before implementation.

According to the monthly power generation plan, equipment maintenance plan and the actual situation of the power grid, the operation strategy is arranged by comprehensively considering weather, holidays, recent water situation, fuel supply, equipment situation and other factors. According to the load forecast, carry out safety analysis to avoid equipment overload or voltage overrun when running in a predetermined way.

Extended data

The main structure of power system includes power supply (hydropower station, thermal power plant, nuclear power plant, etc.) and substation (booster substation, load center substation, etc. ), transmission and distribution lines and load centers. The power supply points are also connected with each other to realize the exchange and adjustment of electric energy between different regions and improve the safety and economy of power supply.

A network consisting of transmission lines and substations is usually called a power grid. The information and control system of power system consists of various detection equipment, communication equipment, safety protection devices, automatic control devices, monitoring automation and dispatching automation systems.

The structure of electric power system should ensure the reasonable coordination of electric energy production and consumption on the basis of advanced technology and equipment and high economic benefits.

The establishment of a large power system with reasonable structure is not only conducive to centralized management, unified dispatching and distribution of power production and consumption, reducing the total installed capacity and saving investment in power facilities, but also conducive to the rational development and utilization of regional energy resources and meeting the growing power demand of regional national economy to a greater extent. Power system construction is often an important part of national and regional economic development planning.

With the emergence of power system, efficient, pollution-free, easy-to-use and easy-to-control electric energy has been widely used, which has promoted changes in various fields of social production, initiated the electric power era and produced the second technological revolution. The scale and technical level of power system has become one of the symbols of a country's economic development level.

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