Strategic Analysis of Wind-Solar-Storage Smart Grid Systems

Abstract

With the whole world aiming for the “dual carbon” goal, huge amounts of new wind and solar power plants are being built as people move away from oil and gas. However, due to natural effects, their irregular and fluctuating output makes it very difficult for the power system to run safely and stably all day long and fully integrate renewable energies into the power system. A wind-solar and energy storage system has been combined via intelligent controlling and regulating methods to coordinate every part of the whole production-grid-load-storage process. This is a crucial approach that can overcome obstacles in the application of renewables. This paper takes the wind-solar-storage smart grid as our research object and discuss it from three system levels (physical level, information level and control level) and the basic features of wind power. This paper review domestic and foreign related literature research, study classic cases, conduct field investigations, analyze problems in output forecast, energy storage, coordination control, etc., put forward some optimization plans, and finally conduct future trend research, so as to provide theoretical basis and practical advice for such engineering design, operation dispatching and industrial development.