Analysis of Solid-State Transformer Enabled Hybrid Microgrid using Resilience Energy Amendment Control Algorithm
Keywords:
Dual Active Bridge (DAB), Resilience Energy Amendment Control (REAC), Steady State Error, Total Harmonics Distortions (THD), modified DC-DC converter circuit, Solid State TransformerAbstract
The increasing electricity demand has attracted global attention and led energy producers and marketers to develop a modified converter circuit for energy stability. In this case, a Dual Active Bridge (DAB) based DC-DC converter is implemented to attain a higher voltage conversion ratio by varying the switching function of the converter. The purpose of the current study is to create soft-switching DAB converter that decreases turn-off switching loss and delivers steady energy power flow in a DC bus system. The DAB converter adopted runs in two modes: boost and buck. The switch is closed in both phases of operation of the converter to decrease zero current loss and increase converter efficiency. The suggested circuit would draw power from the battery sources to control the output load while preserving high efficiency and reliability in power transfer. They are simple and dependable control methods based on the Resilience Energy Amendment Control (REAC) algorithm. The REAC controller has the advantage of adjusting the PWM of the DAB on the fly while maintaining a desired constant output voltage. To achieve this goal, the reference value of the input voltage is adjusted spontaneously well, fine-tuning the duty cycle, low zero constant-state error, fast response and output load and low noise sensitivity. This simulation was MATLAB 2017 b software, and the results showed the performance and reliability of the circuits. The performance of the implemented system is evaluated depends on different parameters like steady-state error (%), Total Harmonics Distortions (THD %) and efficiency (%) of the system.
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