Design Of High-power Supply Based On Dissymmetry Step Modulation

Recently, with the development of semiconductor technology and power electronics technology, the need for high-voltage and high-power supply become more, especially in some scientific experiments. These experiments usually have some special demands such as high-voltage, high-power etc.The dissymmetry step modulation (SM) technology is based on step modulation(SM) and it is an important technology which is used in high-voltage, high-power switching power supply system.The power system based on SM technology is made up of several same units. In this system, the number of units will be large when the output voltage is low. So we use dissymmetry step modulation to do this and because of no filter, the character is very well.Now we bring forward dissymmetry step modulation based on step modulation and make the system works well. We also use a new control strategy which has PI adjuster in it. Designed a power system of 10kv and validate the strategy with both MATLAB and experiment.