The Control Technology To The Rectifier Of Digital Generator

Since the digital generator is flexible, convenient and stable and it can continue to work for a long time, is widely used in medical, communications, field operations and other fields. Therefore, key technology of digital generator research and product development has attracted domestic and foreign companies and research institute concerns. At present, the domestic market for the digital generation is mainly occupied by the developed countries, the key technology is also be monopolized. Therefore, the study of digital generator with independent intellectual property rights, not only has theoretical significance, but also has high engineering value.Digital generator mainly consists of two parts. One is rectifier power system part, the other is inverter system. The main function of rectifier power supply system is to identify the size and nature of the load by the micro-controller, then it generate control signals for engine speed, and according to this signal to adjust the throttle, in order to change the output of the three-phase AC into DC stability.The dissertation includes the following aspects:This paper analyzes the digital generator-rectifier power system structure, and chose the main circuit and the type of the microprocessor, and described the digital generator system works.Load identification is a key technology of digital generators. A load identification scheme is proposed for the digital generator. Hardware and software designs of the load detection are given out.The throttle control system components and working principle of the digital generator are represented in this paper, and hardware and software designs of the throttle control system are completed. Include the following aspects: determine the throttle control scheme, describe the principle of throttle control; determine the type of the stepping motor, and design the driver circuit and driver program; complete the throttle control software design.Based on the hardware design of digital generator, discuss the digital generator control system, and complete the relevant software design, In order to verifying the function of the digital generation which can rectify broadband and wide-range voltage of the three-phase input voltage into a voltage regulation and stabilized frequency of direct current,a digital generator is made, and the related experiments are carried out.