DESIGN OF ENERGY OPTIMIZATION CONTROL MODEL FOR THREE PHASE INDUCTION MOTOR

2025-06-23T11:51:11+00:00

There is usually an imbalance between energy supplied and the amount of energy needed by the ever growing population of the world. Induction motors which is an energy consuming machines is highly used in many industries due to their low cost and low maintenance cost. The influence of these motors (in terms of energy consumption) in energy-intensive industries is significant with respect to total input cost. This work focusedon designing an energy optimization control model for three phase induction motor using the classical optimal controller technique. This was achieved by minimizing the stator current to the least possible value by optimizing the energy drawn by the induction motor for a given torque. The stator voltage values of the induction motor were studied by varying the modulation index (M_a) using the principle of constant flux. The classical optimal control system which uses information on the torque of the motor was used to generate the appropriate voltage amplitude that minimizes the induction motor energy consumption. The classical optimal current controller models were configured for a set of experimental data using the information generated for the approximate minimum stator current value according to fitness functions. The models were implemented using MATLAB/Simulink toolbox and were validated by simulation using a typical three-phase induction motor of 4000W, 400V at a nominal frequency of 50Hz. From the result, it was observed that, the energies drawn by the induction motorwhen using the optimal controller model were highly minimized when compared to the open-loop method. This work has showed that classical control system can be used to minimize the energy consumption of an induction motor to a least possible value for a given output torque.

INVESTIGATION OF THE IMPACT OF BLACK SOOT DEPOSITION ON PHOTOVOLTAIC (PV) SOLAR PANEL OUTPUT EFFICIENCY IN AGBOR METROPOLIS, DELTA STATE, NIGERIA

2025-06-29T12:18:42+00:00

The solar photovoltaic (PV) panel is one of the fundamental components that are used to harness the operation of solar power system. However, its performance is dependent greatly on certain environmental factors and location. This research was focused to investigate the effect of black soot on the output efficiency of solar photovoltaic (PV) panel. The basic studies and operational activity was carried out at a building located in Agbor, Delta State, Nigeria (longitude 6.201883 N and latitude 5.6037 E and 86.16m elevations above the sea level). The major materials used for this research include the following; two (2) monocrystalline solar panels (one served as a control ‘clean’ while the other as a device under test ‘sooty’ and a multimeter. The multimeter was used to measure parameters like: short-circuit current I_SC and open-circuit voltage V_OC while the output power and percentage (%) losses were computed using the measured values. This operation was carried out for a period of three (3) months and the mean values were obtained. From the obtained values, the maximum value of V_OCfor the control module is 35.7V at12 midday while the corresponding value for the sooty module is 34.3V at the same time. Typically, the total daily output power for the control module was 7103.15W while the corresponding value for the sooty solar module was 4827.38W. This presents 32.04% loss in the power output due to black soot on the surface of the solar panel. Cumulatively, the total output power loss daily ranges from 32.04% to 63.90%.

GPH-International Journal of Electrical And Electronics Engineering

DESIGN OF ENERGY OPTIMIZATION CONTROL MODEL FOR THREE PHASE INDUCTION MOTOR

INVESTIGATION OF THE IMPACT OF BLACK SOOT DEPOSITION ON PHOTOVOLTAIC (PV) SOLAR PANEL OUTPUT EFFICIENCY IN AGBOR METROPOLIS, DELTA STATE, NIGERIA