Optimal Scheduling and Application of Hydroelectric-PV-Wind Power Complementary Grid Connection

Abstract

Against the backdrop of global climate change and China’s “Dual Carbon” goals, the clean low-carbon energy transition is imperative, with hydropower, PV and wind power as core renewable energies. PV and wind power output features randomness and volatility due to natural factors, while hydropower has superior regulation performance, making their complementary grid connection a vital approach to boost energy utilization efficiency. This paper analyzes the core characteristics and output rules of the three energies, verifies their application effects in cross-regional peak regulation, remote area power supply and industrial park green power substitution via practical cases, and identifies key challenges such as difficult energy coordination, energy storage technical bottlenecks, poor grid adaptability and high economic costs. It further proposes targeted countermeasures from technological innovation, economic incentives and policy management optimization. The study concludes that the optimal dispatching of their complementary grid connection is a key path for energy transition, and its efficient development can strongly support the construction of a clean low-carbon energy system and the achievement of the “Dual Carbon” goals.