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Hybrid battery-ultracapacitor storage system sizing for renewable energy network integration

机译：混合电池 - 超容器存储系统尺寸可再生能源网络集成

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Wind and Solar photovoltaic power plants outputs are usually highly variable due to gusts of wind and sharp sun irradiance level variations caused by cloud shading effects. These effects negatively impact system security, especially in weak power networks. On the other hand, due to the recent technological progress and cost reductions, electrical energy storage systems are an attractive alternative that can be easily integrated into non-despatchable power plants to compensate for those power output fluctuations. This study proposes a methodology for optimal sizing of a hybrid (lithium-ion battery and ultracapacitor) energy storage system for renewable energy network integration. Special attention is paid to the battery cycling degradation process. It is shown that battery aging due to cycling is a major driver for optimal sizing. The resulting sizing problem is posed as a non-linear programming problem. Finally, real and illustrative case studies are presented for both, wind and photovoltaic power plants integrating a hybrid energy storage system. Results are reported by comparing different energy storage system configurations.
机译：由于云阴影效应引起的风力和尖锐的太阳辐照度水平变化，风和太阳能光伏发电厂输出通常是高度变化的。这些影响产生负面影响的系统安全性，特别是在弱电网中。另一方面，由于最近的技术进步和成本降低，电能存储系统是一种有吸引力的替代方案，可以容易地集成到不可批判的发电厂中以补偿那些功率输出波动。该研究提出了一种用于最佳尺寸的混合动力（锂离子电池和超容器）能量存储系统的方法，用于可再生能量网络集成。特别注意电池循环降解过程。结果表明，由于循环引起的电池老化是最佳施胶的主要驱动器。由此产生的尺寸问题被构成为非线性编程问题。最后，对于整合混合能量存储系统的风和光伏发电厂介绍了实际和说明性案例研究。通过比较不同的能量存储系统配置来报告结果。

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