Performance Analysis of Grid Integrated Hydro and Solar Based Hybrid Systems

Abstract

The renewable energy systems (RESs) are an attractive option to electrify the community as they are environment friendly, free of cost, and all-pervading. The efficiency of these energy systems is very low and can be improved by integrating them in parallel. In this paper, hydro (7.5 kW) and solar systems (10 kW) are taken as RESs and connected with the utility grid. Due to the intermittent nature of both the hydro and photovoltaic energy sources, utility grid is connected to the system for ensuring the continuous power flow. The hydro power generation system uses the self excited induction generator (SEIG) and converters. The AC/DC/AC converter is used as interface to connect the hydro turbine to the utility grid to adjust the generated voltage to the utility grid voltage. The solar generation system is the combination of PV array, boost converter, and solar inverter. The control of both the hydro and solar power plants is provided through the constant current controller. The analysis has been done to verify the existence of the proposed system. Results demonstrate that the proposed system is able to be put into service and can feed the community.

Mathematical modeling of hybrid renewable energy system: A review on small hydro-solar-wind power generation

“…Power control in PV has been done by employing MPPT tracking that uses perturb and observe (P&O) method. Meshram et al 26 proposed a hypothetical grid connected solar-hydro hybrid system. As solar energy is abundant in summer, grid connected solar system supplies the power while hydro system is cutoff during operation.…”

“…6. Bati and Brennam 49 presented modeling of wind turbine of which the rotor side inertia J r is given by (26) The low speed shaft torque is given by (27) The generator inertia J g is driven by the high speed shaft and braked by the electromagnetic torque T g of the generator (28) If we assume the ideal gearbox with ratio n, then (29) where the notations of which are the same as those of one mass model. K ls is the low-speed shaft damping coefficient in [N m rad -1 sec…”

A review on bi-source, off-grid hybrid power generation systems based on alternative energy sources

“…Battery bank either stores or supplies the power depending on the load demand. [88][89][90][91][92][93][94][95] The principal advantage of Microhydro-PV hybrid system is the enhanced reliability of the system by the elimination of drawbacks encountered in the alone operation of either of two sources. This hybrid system utilizes the freely available sources and has very small maintenance cost.…”

Multi-Objective Optimization of Run-of-River Small Hydro-PV Hybrid Power Systems

“…Zhou et al [21] focused their study on the stability of the hydro-PV hybrid power system by using a PSCAD simulation. Meshram et al presented simulation modeling of PV-hydro hybrid power system connected to grid [22], analysed the system and noted that it could feed the community [23]. The authors also studied the power management strategy and the performance analysis of the system for determining the active power dispatching [24].…”