Hybrid Architecture for Integrating Solar PV Irrigation Pumps with Existing Rural Indian Microgrid

摘要

This paper presents a hybrid architecture for a typical rural Indian microgrid with integrated irrigation system. A stand-alone microgrid system named Dharnai Rural Microgrid (DRMG) serves the community loads in a small village called Dharnai in Jehanabad district, Bihar (25.0125° N, 84.9792° E). The load demand of solar PV irrigation pump system (MG1) is modeled for a period of 20 years based on crop pattern and rainfall. The Capacity Shortage (CS) of MG1 is varied between 5% and 20% to achieve high operational efficiency. These solar operated pumps are not integrated even though they are situated in and around 2 km radius from the DRMG. Thus, devising solar PV and battery independently for DRMG and MG1 results in two individual microgrid systems. The excess energy generated in MG1 during rainy seasons results in poor utilization of resources. Therefore, in this paper, the architecture of the DRMG system has been improved - MG1 and DRMG are architected together to operate as a single microgrid MG2 resulting in better resource utilization. This leads to an increase in the operational efficiency up to 6% while generating cost savings between 5.37% and 22.6%.