Date of Award
December 2025
Document Type
Dissertation
Degree Name
Doctor of Philosophy (PhD)
Department
Energy Engineering
First Advisor
Olusegun S. Tomomewo
Abstract
Hybrid Power Plants (HPP) that combine wind power plants (WPP), solar power plants (SPP), and battery energy storage systems (BESS) have recently emerged to provide dispatchable renewable electricity, improve the stability of the power grid, maximize use of infrastructure assets, and minimize carbon releases. Nevertheless, regardless of their technical potential, the large-scale application of HPP still encounters many barriers, such as operational complexity, inadequate sizing, and financial viability. To mitigate these issues, this study incorporates three research questions. First, this study introduces a four-layer hierarchical control architecture for coordinating WPP, SPP, and BESS to ensure dispatchable power. Second, a multi-objective particle swarm optimization (MOPSO) is presented to identify the optimal system sizing in the context of uncertain wind and solar availability, maximizing the net present value (NPV), minimizing the loss of load probability (LOLP), and increasing efficiency. Finally, a comparative policy-driven economic assessment evaluates regulatory incentives such as investment tax credits (ITC), production tax credits (PTC), accelerated depreciation (AD), generation-based incentives (GBI), and capital subsidies in the U.S. and India to assess HPP financial feasibility. Simulation results show the efficiency of the proposed control structure for multi-technology coordination while reducing curtailment and maintaining BESS SOC. The optimal configuration (283 MW wind, 20 MW solar, 500 MWh battery) yielded a $165.2M NPV, 3.79% curtailment, and 8.26% LOLP. Policy analysis reveals HPPs require incentives to compete with LCOE: U.S. support was reduced by 12%, while Indian subsidies cut costs by 60%. This integrated methodology bridges simulation, economics, and policy, aiding developers, researchers, and policymakers in scaling HPPs across diverse regulatory landscapes.
Recommended Citation
Bade, Shree Om, "Control Strategy, Multi-Objective Optimization, And Economic Viability For Utility-Scale Wind-Solar-Based Hybrid Power Plant" (2025). Theses and Dissertations. 8211.
https://commons.und.edu/theses/8211