Characteristics of power system

Characteristics of power system

The transition process of normal and fault states is very short: the power system must be controlled by means of automatic devices, and the degree of automation of control operations is high: relay protection devices, remote control devices, load reduction devices, synchronization devices, etc.

Electricity production has a very close relationship with various sectors of the national economy and people's lives: the social, political and economic impact is huge. Load classification: Class I load, Class II load, Class III load

Instant generation, immediate use, electrical energy cannot be stored in large quantities: the production, transformation, transmission, distribution and use of electrical energy are carried out simultaneously.

The basic requirements for power system operation are as follows:

  (1) Guarantee power supply reliability

  (2) Guarantee power quality

  (3) Improve the economics of power system operation

  (4) Environmental protection issues