Currently, there are presentations and sales of equipment for conversion systems from renewable sources, such as inverters and converters as shown in Fig.1, and will be increasingly used in the future. The problem is that when the system is damaged, the problem cannot be resolved if the operator does not have the knowledge. In this paper, we discuss the design and construction of inverter circuits, including the converter circuit. For the first is to propose a three-phase inverter design.
The first step is to understand the inverter circuit. As shown in Figure 1 the inverter circuit consists of three main components: 1) electronic power (6 IGBTs), 2) rectifier and 3) microcontroller or digital processing system. When you completely have understood the operation of the inverter you may try simulating by using simulation software such as MATLAB/SIMULINK etc. The next step is to design a PCB circuit to create a prototype circuit for testing. The whole process may be complicated, and you need trying a number of different methods and learning from the mistakes that you make, till you may discourage or give up. However, these processes have been carried out for many years of the research and experimentation. Finally, we have an absolute conclusion, and the inverter circuit has been proposed here.
1) Schematic design
As shown in the Fig.3 schematic circuit of the 3-phase inverter has already designed.
Download Schematic HERE.
1) PCB design
As shown in Fig.4 and 5 PCB circuit of the 3-phase inverter has already designed.
When the 3 phase inverter is completely designed, the next step is to construct all components and bring all combined together to test its functionality.
For this article, the author will offer a detailed for building the inverter step by step. And the goal this procedure that has just mentioned is to present the entire process from start to finish for just designing of the inverter.