Study On Bus Line Energy Consumption Analysis Of Inverter Groups Power Supply And Its Improvement Measures

Aiming at the bus heating phenomenon in inverters' parallel connection in power plants, the thesis firstly studied the bus power consumption of the bus based on the field measured data, and the possible harmonic and its hazards to electrical equipments were also analyzed when the power supply bus is with a single inverter or a converter groups. Secondly, for the current power supply system with converter groups, the different measures are presented for harmonic elimination. Meanwhile, the finite element method was used for calculating the losses of a bus line. Finally, through the comprehensive comparative analysis on the treatment effect, response time, safety and reliability, a harmonic control method was presented, which takes economical efficiency and practicability into account. With this measure, the entire system operation can be much safer and reliable. Furthermore, efficiency and stability of the power supply system are improved to a great extent.