Analyzing and designing an fpga based static synchronous compensator for voltage stabilization
Renewable energy sources such as wind turbines provide clean and environmentally friendly energy. However, the level of voltage stabilization has to be carefully maintained. A static synchronous compensator (STATCOM) is developed to control the voltage stabilization level. The STATCOM will be controlled by Field Programmable Gate Array (FPGA). The system consists of an inverter, gate driver, feedback system, and FPGA as the main controller. The voltage output will be actively monitored and fed back to the FPGA. To adjust the voltage magnitude accordingly, the signal amplitude will be modulated by adjusting the amplitude modulation ratio constant. Providing reactive power compensation is also a STATCOM main concern. This issue will be administered by adding phase shifting ability to the FPGA. Additionally, the inverter outputs will be fed to the grid voltage, therefore, a phase locked loop control is also introduced. The results of experiment were satisfying. The proposed system was able to achieve 0.352o in phase shifting resolution, and amplitude of the output is also adjustable. Phase locked loop control is also added to the system.
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