Design Optimization Of The Passive Filter Inverter And Visualization Algorithms

With the rapid development of science and technology, nowadays a number of electrical equipments are no longer directly using AC power or a generator to provide power, but through the use of various forms of energy have transformed the quality of higher power.In this paper, under the single-phase full-bridge voltage source SPWM inverter circuit topology, the mathematical model was established and in accordance with its mathematical model, using Matlab/Simulink of based module built in the mathematical simulation model of inverter.Secondly, the auxiliary of the inverter circuit and main circuit of the detailed design, taking into account the inverter is usually used as a secondary power supply, the input pulse of DC current DC power supply will be polluted and affect other electrical equipment, therefore, in order to smooth and reduce the input harmonics, you must set the input filter. Based on four-dimensional data visualization techniques to reduce the input DC voltage ripple for the purpose of taking into account the time surge voltage and current surge generated by given input voltage ripple, surge voltage, and surge current and the the relationship between the filter parameters on the DC filter carried out a detailed design. In addition, This paper presents a new kiad of method of the DC inductance and applied in practice.Finally, post-level inverter The quality of the design directly determines the inverter power system performance, high-performance digital control chip with the development and popularization of inverter has been widely used digital control, which makes control of a flexible greatly improved, and are not easily affected by environmental factors such as interference. To enhance system stability, this paper has introduced a single-loop voltage PI positive feedback and double loop PI control of voltage and current, Simulation results demonstrate the feasibility of this method.