Failure Probability Modeling and Reliability Evaluation of Ocean Current Integrated Generation System

• 1、State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044

Abstract：Ocean current power generation is a form of renewable energy power generation that uses fluid kinetic energy. Ocean current fields have velocity distributions in vertical depths of hundreds of meters below the sea surface and kilometers away from the coast, that characteristics have implications for the use of ocean currents for power generation. This paper studies the reliability of ocean current power generation and its effect on the reliability of power systems, and establishes a fault rate model of ocean current power generation that takes into account generator failures, collector system failures, strong typhoon weather effects, and repair rate. Considering the above factors, a method for reliability assessment of power generation systems with ocean current power integrated is proposed based on sequential Monte Carlo simulation. For the RTS-79 system with ocean current power generation, a case study is performed to evaluate the reliability indices. The results of a case study verify the role of ocean current power generation in improving system reliability, and explore the influence of the area of ocean current planning, changes in failure rate parameters, and typhoon weather conditions on the reliability of ocean current stations.

Keywords： Reliability Evaluation Ocean Current Generation Extreme Weather Collector System Repair Rate