The Research On Energy Feedback Of PMSM Based On PLL

Energy source is a foundation for national development, and it is the lifeblood of the national economy. Today, because of the growing shortage of energy, energy conservation becomes the focus of attention. There is a constant exploration and study on how to use of energy fully and effectively. So we can achieve development of society sustainability.As we all know, our economy is developing rapidly, increasing power supply requirements, saving electrical energy and the sources become important as the discovery of new energy, if a set of equipment which the grid can generate energy from generators can be devised, you can effectively save energy, for example, when electrical plant are performing an experiment. Then often make resulting energy into heat dissipation, it is not only a waste of energy but also lead environment pollution to some extent. Through energy feedback control system, this part of the energy can be get back to the grid, both energy-saving and environmentally friendly.In this dissertation firstly research the energy development status of feedback control systems, energy feedback system can make the energy which generated from the energy generator test to the grid. And it will get positive meaning in energy-saving environmental protection. And simulation studies have been done in field of power feedback control system. This article confirmed that the proposed scheme is feasible. This article focuses on the energy feedback control, phase-locked loop, grid, SVPWM and other related technology research. And the main structure of the circuit is built, such as the main inverter circuit, IGBT driver isolation, the sampling circuit and PLL circuit. Minimum control systems and applications are designed On the basis of TMS320LF2812, and through the installation and commissioning the basic functions of the various parts of the circuit is achieved. Then, in this experimental platform, a large number of experimental studies related to energy feedback have been preceded. Through the experiment we got many experimental waveforms and data. Experimental results show that the designed feedback control system can realize the energy grid to verify, the system is correct...