研究目的
To propose a solar photovoltaic (PV) array fed induction motor (IM) drive operated water pumping system with a speed adaptive estimator, focusing on the implementation of a space vector modulation (SVM) of voltage source inverter (VSI) without current sensors.
研究成果
The proposed reduced sensor based, cost-effective system, constituting one current sensor and robust speed adaptation technique for solar PV fed induction motor drive, has been modeled and simulated in MATLAB/Simulink. It is then tested experimentally on a prototype in the laboratory. The performance of motor-drive system is found satisfactory during starting, steady-state, dynamic conditions of insolation change.
研究不足
The system's performance is dependent on the accuracy of the speed and flux estimation techniques, which may be affected by parameter variations and environmental conditions.
1：Experimental Design and Method Selection:
The system is designed with a single-stage PV powered SVM based VSI fed IM driven water pump. A generalized integrator based flux adaptation approach is used for drive performance improvement. A modified MRAS based speed estimation enhances stability.
2：Sample Selection and Data Sources:
A
3：5 kW PV array is designed for system operation comprising of IMD of 2 kW. List of Experimental Equipment and Materials:
PV simulator (AMETEK make ETS600x17DPVF TerraSAS), Hall-Effect voltage and current sensor (LV25-P and LA55-P), VSI (SEMIKRON MD B6CI 600/415–35F), DSP-dSPACE1202 controller.
4：Experimental Procedures and Operational Workflow:
The system is modeled and its performance is simulated in MATLAB/Simulink environment. The appropriateness of proposed system is verified experimentally on a prototype developed in the laboratory under various operating conditions.
5：Data Analysis Methods:
The performance of the system is analyzed under various atmospheric conditions, realized in terms of changing insolation.
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