Abstract
This demonstrates a robust and inexpensive pumping system for an uninterrupted rated capacity of water supply. This system offers efficient power management between solar PV array with the battery energy storage (BES) utilizing a synchronous reluctance motor (SYRM) to pump water. In this two stage solar energy conversion system, a DC stage boost converter is employed for driving the PV array at maximum power point (MPP), and a three phase voltage source inverter is used to control of SYRM-pump. A speed sensor less vector control algorithm is used to control the SYRM. Owing to full potential water discharge irrespective of the atmospheric conditions, a BES is used to provide the additional required power. Moreover, in the non-pumping duration hours, the solar PV array's power is used to charge the BES. In this system, an Incremental conductance (INC) algorithm is destined not only for the PV array to operate at MPP but also to safeguard the BES by ensuring the charging current's safe limits. This algorithm is responsible for charging the BES whenever solar power is available and trip the PV power based on its SOC (state of charge). The modeling of the overall system is carried in the MATLAB/ Simulink environment. Obtained results show the suitability of the system for the solar pump application.
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