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This paper presents a significant improvement in the dynamic performance and control of an isolated slip-ring induction motor (SRIM). The stator windings of this SRIM-based wound rotor motor are connected to a fixed dc voltage PV system through a boost converter (BC) and a two-level three-phase voltage source inverter (VSI). Thus, SRIM is modulated and controlled using a nonlinear ramp bang-bang current-mode technique (RBBCM) with PWM a modulated inverter VSI. Using Simplorer 7, and MATLAB, the experimental and simulation results are investigated and compared between these techniques. The results show the following: the improvement, which can be seen by modulating the fixed frequency and waveform achieved by the inverter; The phase shift between the main component of the load phase voltage and current is almost zero; In addition, the variable hysteresis modulation successfully cancels noise and disturbances while also mitigating both higher and lower-order harmonics. The experimental results are investigated and compared with respect to total harmonic distortion, transient response of SRIM speed and developed torque, and other factors that may affect the SRIM performance.

In developing countries like Jordan, traditional energy resources are not available, so finding other sources to pump the water for irrigation and consumption is necessary. Renewable energy sources, particularly photovoltaic (PV), can play a vital role in providing potable water and irrigating crops in Jordan. Where there is a large amount of groundwater in most areas, while the water wells are deep and far from the national electricity grid. This article compares the Present Value Cost (PVC) for the monetary estimation of energy supply for water pumping systems (WPSs) in remote areas in Ghor Al-Safi/Jordan by two different sun-energy systems, Photovoltaic thermal (PV-T), and PV systems. Several factors are considered, including energy costs and expenses of the investments. The comparison is performed for a variety of variable values, including PV system peak power, and water pumping requirements. A case study is conducted at Ghor Al-Safi/Jordan. Evaluating two energy supply WPSs, which are designed to supply irrigation water for the entire year 2020. The obtained results showed that the average monthly electricity output efficiency for “PV and PV-T” was 12.7% and 10.86%, respectively. However, the total efficiency of the “PV-T” ranged from 41.3% to 55% which is higher than the PV system. The result concluded that the application of PV-T system in Jordan is promising for solving energy demand.