Power smoothing in a variable speed wind-diesel system

IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03. Pub Date : 2003-06-15 DOI:10.1109/PESC.2003.1218150

R. Cárdenas, R. Peña, J. Clare, G. Asher

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引用次数: 31

Abstract

In wind-diesel systems wind speed variations can produce frequent start/stop cycles of the diesel engine in response to periods of low wind speed. Consequently, an energy buffer is very important in these schemes to avoid unnecessary deterioration of the diesel engine. In this paper, control systems for the operation of a variable speed wind-diesel system, including power smoothing, are analyzed. The power smoothing system comprises a front-end converter, a flywheel energy store and a vector controlled induction machine. The wind energy conversion system comprises a variable speed wind turbine and back to back converters for interfacing the variable speed generator to the load. Control of the power smoothing system compensates for the effects of wind variation and load disturbances. The operation of the whole system including the wind turbine, front-end converter, control of active and reactive power supply is discussed as well as the vector control system of the induction machine driving the flywheel. Simulation results for the entire system for a number of operational conditions are presented. Experimental results are provided for the control of the flywheel energy store.

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变速风力-柴油系统的功率平滑

在风力-柴油系统中，风速变化可以产生频繁的启动/停止循环，以响应低风速时期。因此，在这些方案中，能量缓冲器是非常重要的，以避免柴油机不必要的劣化。本文分析了变速风电-柴油系统的运行控制系统，包括功率平滑。功率平滑系统由前端变换器、飞轮储能系统和矢量控制感应电机组成。风能转换系统包括变速风力涡轮机和用于将变速发电机连接到负载的背对背变流器。电力平滑系统的控制可以补偿风力变化和负荷扰动的影响。讨论了整个系统的运行，包括风力机、前端变流器、有功和无功电源的控制，以及感应电机驱动飞轮的矢量控制系统。给出了整个系统在多种工况下的仿真结果。为飞轮储能的控制提供了实验结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03.

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