Armature current minimization power generation control method for multi-stage starting power generation system

• Main Authors: JIAO NINGFEI, FANG YAODA, LIU WEIGUO, PANKEY, GAO XIN, ZHANG DELIANG
• Format: Patent
• Language: Chinese; English
• Published: 05.03.2024
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention relates to a multi-stage starting power generation system armature current minimization power generation control method, which is characterized in that a direct-axis current reference value of a main motor is calculated and determined in real time by adopting an excitation flux linkage and a quadrature-axis current reference value through an armature current minimization calculation formula; compared with a traditional method that the direct-axis current reference value is directly set to be 0, the method can achieve the minimization of the armature current of the main motor in the wide-rotating-speed power generation stage, effectively reduces the armature current of the stator of the main motor and the copper loss of the stator, reduces the burden of a power device of a controller, reduces the heating of the stator of the main motor, and improves the operation efficiency of a system. It can be seen from the figure 9 that in the 6000-12000r/min wide-rotating-speed power generation operation ran