PCD530A102 3BHE041343R0102 PC D530 A102 standard Controller Board

The role of the generator excitation system in thermal power plants
The excitation system consists of two parts: excitation control and excitation power output. It can not only provide branch current for the generator plant, but also complete the establishment of the generator branch magnetic field. By effectively controlling the excitation, it is helpful to ensure the normal operation of the generator. When the generator fails, the excitation current can be effectively adjusted to ensure the safe operation of the generator. The role of the generator excitation system is mainly manifested in the following four aspects. First, the voltage control function. In order to ensure the normal operation of the generator, it is necessary to do a good job in voltage control. It should be ensured that the system provides excitation power for the generator under normal operating conditions, and in combination with different load conditions, the magnitude of the excitation current can be effectively adjusted to achieve effective maintenance of a given voltage level. Second, reactive power distribution. It is necessary to reasonably allocate the reactive power of the generator set in the excitation system and give full play to the role of the regulation system to achieve effective control of the power factor, current and reactive power parameters of the generator set. Third, ensure the safe operation of power equipment. During the operation of power equipment, it is necessary to improve the dynamic stability and venous stability of the system. Once a short-circuit fault occurs in the power generation system, it is necessary to cut off the fault in time to effectively maintain the voltage in the power system, so as to accelerate the rapid recovery of the voltage and ensure the safety of power equipment operation.