Design and eva‎luation of three-phase inverter PID controller

1/1/1900 12:00:00 AM

At the present time, the importance of energy-related issues has caused the use of new energy sources as electric energy producers. The increase in the need for new energy sources also leads to the improvement of energy transmission and distribution networks and has increased the need for stronger investment in the development and updating of their basic infrastructure. These challenges have forced the need for new solutions in providing electrical energy. One of the suitable options for providing electrical energy is the use of scattered production sources, which are considered as one of the most important sources of electrical energy supply today. In other words, grid-connected inverters play a very important role in improving power quality and increasing the efficiency of distributed and micro-grid generation devices due to their multi-purpose capabilities. Therefore, they are known as one of the key technologies in the transition to distributed generation devices and renewable energy. Considering the importance of the existence of inverters in the network, in this project, the design and eva‎luation of an inverter controller has been discussed. Types of controllers play an important role in controlling inverter systems disconnected from the network. In this research, proportional-integral-derivative (PID) control strategies are investigated to analyze the performance of grid-connected inverter equipped with LCL filter. Then, simulation studies using the control method (PID) were conducted for the LCL filtered inverter isolated to the network with inductive ohmic load, and the results will be examined and analyzed. And finally, the performance of the PID controller designed on the inverter was eva‎luated. The stability and performance of this controller in different scenarios of set point change, input voltage change, load change, uncertainty, and in the comprehensive test were successfully performed. According to the results of the proposed controller It has met all the intended goals in the design.

اينورتر , توليد پراكنده , كنترل‌كننده PID

inverter , scattered production , PID controller

Nooshin Naeini

Dr. Poshtan