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This paper proposes an efficient modular sector variable-step perturb and observe (VSPO) maximum power point tracking algorithm. The proposed algorithm enhances the speed tracking and minimizes oscillations level problems associated with traditional P&O methods. The routine of generating the variable step sizes depends on splitting the (P–ω) characteristic curve of wind turbines into modular sectors,...
In this study, the maximum power point tracking (MPPT) performance is investigated based on variable-speed wind energy conversion system below the rated wind speed. The proposed modified perturb and observe (MPO) MPPT enhances the initial speed-tracking accuracy and eliminates the oscillations level. The MPO employs four sectors operation using a variable-speed step sizes by comparing the new suggesting...
A PV array is composed of a number of series and parallel modules to meet the voltage, current and power requirements. In this paper, a modified Perturb and Observe (P&O) Maximum Power Point Tracking (MPPT) technique is presented. The modified P&O is used in the maximum power point tracking of a partially shaded PV system. The electrical performance of the proposed partial shaded P&O MPPT...
This paper studies position control of a linear induction motor drive using three cascaded sliding mode controllers. First, the indirect field oriented control of the LIMs is derived, and then cascaded sliding mode controllers design for indirect field oriented control is applied to compensate the uncertainties, which occur with conventional control techniques. The performance of the LIM drive is...
This paper aims to design a Double Rotor Multi-Tooth Flux-Switching Generator (DR-FSG) with DC excitation suitable for wind power generation. The proposed design has one stator, two mechanically coupled rotors, and two armature winding groups. Each armature winding group is connected with a bridge rectifier. The outputs from the rectifier circuits are connected in series. The performance of the machine...
A novel salient inner stator Partitioned Stator Switched Flux PM machine is proposed in this paper. The proposed machine combines the operation principles of the partitioned stators and the outer-rotor switched flux permanent magnet machine. It employs the rotor and stator of a partitioned stator switched flux machine as a rotor and an outer stator respectively and the stator of outer-rotor switched...
This paper compares the performance of hysteresis current control and space vector PWM operation of indirect field oriented controlled linear induction motor drive. Sliding mode control or standard PI controllers are applied in the outer control loop to control the mover speed. The inner control loops are standard PI controllers to regulate the direct and quadratic current components. The end effect...
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