In recent years, the penetration level of renewable energy generation units such as wave, wind, photovoltaic, and tidal power plants in the modern power systems has increased. It began in the 1970s with a sudden change in oil price and today, large-scale power plants based on renewable resources have been put into operation. Due to large potential of wave energies, the share of these power plants is expected to increase. Hence, it is necessary to study the effect of wave energy converters on the different aspects of power systems. For this purpose, the effect of variation in the generated power of wave energy converters arising from variation in the wave height and wave period on the operation studies of power-system must be investigated. For the first time, the impact of large-scale wave energy converters on the operation studies of the power system is investigated, and the numerical results of the wave dragon converter as a commercial-scale wave energy power plant are considered. For this purpose, a multistate reliability model of wave energy converters is developed considering both uncertain nature of the generated power and failures of composed components of the wave power plant. To determine the optimal reliability model of the wave generator, XB-index is calculated and fuzzy c-means clustering technique is utilized. Then, the proposed multistate reliability model based on the modified PJM method, which is suitable for short-term studies, is used to perform the operation studies of the power systems containing large-scale wave energy converters. Numerical results of the operation studies of RBTS and IEEE-RTS including wave farms are given in the paper to study the impact of wave energy converters on the reliability-based operation indices of the power systems.

中文翻译：

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使用改进的 PJM 方法进行基于可靠性的波浪能转换器运行研究

近年来，波浪能、风能、光伏、潮汐能等可再生能源发电机组在现代电力系统中的渗透水平不断提高。它始于 1970 年代石油价格的突然变化，如今，基于可再生资源的大型发电厂已投入运营。由于波浪能的巨大潜力，这些发电厂的份额预计会增加。因此，有必要研究波浪能转换器对电力系统不同方面的影响。为此，必须研究由波浪高度和波浪周期变化引起的波浪能转换器发电功率变化对电力系统运行研究的影响。首次，研究了大型波浪能转换器对电力系统运行研究的影响，并考虑了波龙转换器作为商业规模波浪能发电厂的数值结果。为此，考虑到所产生电力的不确定性和波浪发电厂组成部件的故障，开发了波浪能转换器的多状态可靠性模型。为了确定波浪发生器的最佳可靠性模型，计算XB-index并利用模糊c-means聚类技术。然后，所提出的基于修正 PJM 方法的多态可靠性模型适用于短期研究，用于执行包含大型波浪能转换器的电力系统的运行研究。