Quaternary pumped storage hydropower (Q-PSH) technology, as one of the new advanced-PSH technology, has been developed by taking advantage of Conventional-PSH (C-PSH) and Adjustable Speed-PSH (AS-PSH). By combining adjustable-speed pump unit and conventional hydropower turbine unit in the quaternary configuration, Q-PSH has the more competitive capability of providing fast power support in the future high renewable penetrated power system. Acting as energy storage (ES), Q-PSH provides promising power supply to deal with the uncertainty and variability from renewable energy generation. This paper focuses on the dynamic modeling of Q-PSH technology employing full-converter machine and the impact of Q-PSH on the frequency response in a system. The detailed model of Q-PSH is developed and implemented in the IEEE 14-bus system based on GE Positive Sequence Load Flow (PSLF) platform, which captures the dynamic of multiple operation modes, especially hydraulic short-circuit (HSC) operation mode. Several cases are set up to reveal the advantages of Q-PSH technology when power electronic based renewable energy generation is deployed in the system. Sensitivity studies of the controller in pump governor show the impact of parameters in pump response performance. The comparison case illustrates the impact of frequency response provided by the Q-PSH in the system.

中文翻译：

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动力研究用第四系抽水蓄能水电开发。

第四级抽水蓄能水电（Q-PSH）技术作为一种新的高级PSH技术，已通过利用传统PSH（C-PSH）和可调速PSH（AS-PSH）进行开发。通过在四级配置中组合变速泵单元和常规水力涡轮机单元，Q-PSH具有更具竞争力的能力，可以在未来的高可再生渗透电力系统中提供快速的电力支持。作为能量存储（ES），Q-PSH提供了有希望的电源，以应对可再生能源发电的不确定性和可变性。本文重点介绍了采用全变频器的Q-PSH技术的动态建模以及Q-PSH对系统频率响应的影响。Q-PSH的详细模型是在基于GE正序潮流（PSLF）平台的IEEE 14总线系统中开发和实现的，该平台捕获了多种运行模式的动态，尤其是液压短路（HSC）运行模式。当在系统中部署基于电力电子的可再生能源发电时，设置了几种情况来揭示Q-PSH技术的优势。泵调速器中控制器的灵敏度研究表明，参数对泵响应性能的影响。比较情况说明了Q-PSH在系统中提供的频率响应的影响。当在系统中部署基于电力电子的可再生能源发电时，设置了几种情况来揭示Q-PSH技术的优势。泵调速器中控制器的灵敏度研究表明，参数对泵响应性能的影响。比较情况说明了Q-PSH在系统中提供的频率响应的影响。当在系统中部署基于电力电子的可再生能源发电时，设置了几种情况来揭示Q-PSH技术的优势。泵调速器中控制器的灵敏度研究表明，参数对泵响应性能的影响。比较情况说明了Q-PSH在系统中提供的频率响应的影响。