Ensuring seamless transfer between grid-connected and stand-alone modes is crucial for maintaining a reliable power supply. This article presents a technique that allows for a smooth transition from current source control used in grid-connected mode to adopting droop control in stand-alone mode. The distributed generation unit makes use of current-source control during normal grid operation, but i...Show More
This paper presents a new method of current control for the cascaded three-level inverter based on fuzzy logic sliding mode control (FLSMC). To minimize the chattering caused by fast and large amplitude changes of currents and voltages across the load, a fuzzy logic observer is utilized to identify the switch control law. The proposed FLSMC method shows that the measured current can closely follow...Show More
This paper presents a new robust adaptive control based on Sliding Mode Control (SMC) for the cascaded H-bridge five-level inverter. The proposed method develops to modulate PWM pulses instead of using carrier waves as conventional modulation techniques. The control law of the controller improved with the nonlinear sliding-mode surface and continuous function combined with a first-order low-pass f...Show More
Electric power load demand forecasting plays a very indispensable role in energy management, such as suitable planning and investing in developing more infrastructure, and moderate operating the electricity system. Moreover, the accuracy of the electricity demand forecasting must be paid special attention. Although research on this problem has been conducted in recent years, the authors noticed th...Show More
The new isolated step-up dc-dc converters based on the trans-Z-source/-quasi-Z-source networks are proposed in this paper. By adjusting the shoot-through duty cycle and changing the transformer turn ratio of the trans-Z-source network, the proposed trans-Z-source-based dc-dc converters have a lower shoot-through duty cycle compared to the conventional quasi-Z-source-based dc-dc converter. The turn...Show More