Analysis of a Wind Turbine Power Transmission System with Intrinsic Energy Storage Capability
Analysis of a Wind Turbine Power Transmission System with Intrinsic Energy Storage Capability
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具有固有储能能力的风力发电机组输电系统分析
DOI：
10.1260/0309-524x.39.2.149
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发表时间：
2015
期刊：
影响因子：
1.5
通讯作者：
B. Brewster
中科院分区：
文献类型：
--
作者：
S. Garvey;A. Pimm;James A Buck;Simon Woolhead;K. W. Liew;B. Kantharaj;J. Garvey;B. Brewster
描述了一种风力涡轮机传动系统，其中，直接来自大型风力涡轮机转子的轴的缓慢旋转的机械功率经由在闭合回路中运行的高压气体的循环通过同步发电机传递为电力。在最简单的操作模式中，功率通过具有非常高的等熵效率的特殊低速近绝热压缩机注入气路中，并使用也是具有相对高的等熵效率的近绝热膨胀机提取。在其他操作模式中，可以利用由气体的绝热压缩或膨胀自然产生的温度变化，以便将能量放入存储器中或从存储器中回收能量。本文探讨了这样一个电力传输系统背后的一些设计原理，并使用火用分析来解释和评估其操作。
A wind turbine transmission system is described wherein mechanical power directly from the slow rotation of the shaft of a large wind turbine rotor is carried over to electrical power through a synchronous generator via the circulation of a high pressure gas running in a closed circuit. In the most straightforward mode of operation, power is injected into the gas circuit via special low-speed nearly-adiabatic compressors with very high isentropic efficiency and is extracted using an expander that is also nearly-adiabatic with relatively high isentropic efficiency. In other operating modes, it is possible to exploit the temperature changes arising naturally from adiabatic compression or expansion of gas so as to put energy into storage or recover energy from storage. This paper explores some of the design rationale behind such a power transmission system and uses exergy analysis to explain and evaluate its operation.