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首页> 外文会议>IEEE Power Electronics Specialists Conference >A Novel Method for Improving the Overload Capability of Stand-alone Power Generating Systems Based on a Flywheel Induction Motor
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A Novel Method for Improving the Overload Capability of Stand-alone Power Generating Systems Based on a Flywheel Induction Motor

机译：一种新型方法，用于提高基于飞轮感应电动机的独立发电系统的过载能力

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摘要

Flywheel energy storage systems are good power stabilizers for stand-alone power systems, especially for highly fluctuating load or inrush power demand. In this investigation, a simple setup of a flywheel induction motor device is proposed which is composed of a flywheel and an induction motor directly connected in parallel to the inverter-controlled load. Also, a novel control method to improve the overload capability of the stand-alone power systems is presented by applying frequency control to the load side inverter. Compared to the conventional flywheel energy storage system, the proposed system has the following advantages: 1) simple configuration due to less number of inverters in the proposed system; 2) not only an improved overload capability of the stand-alone power system, but also a decreased capacity of the load-side inverter; 3) simple control and low cost. Although the changes of the flywheel's speed would lead to frequency variations, a survey reveals that a small frequency variation is permitted for quite a lot of industrial machines. The requirement for the frequency variation can be satisfied by a proper capacity design of the flywheel induction motor. A design method to meet the utility's demand is introduced in this paper. Some experiments are conducted to verify the proposed system and the frequency control method. The experimental results show that the proposed system is easy and practical as an overload improvement method.
机译：飞轮储能系统对于独立电力系统是良好的功率稳定器，特别是对于高度波动的负载或浪涌电力需求。在该研究中，提出了一种简单的飞轮感应电动机装置，其由飞轮和直接连接到逆变器控制的负载直接连接的感应电动机组成。此外，通过将频率控制施加到负载侧逆变器来提高改善独立电力系统的过载能力的新颖控制方法。与传统的飞轮储能系统相比，所提出的系统具有以下优点：1）由于较少数量的逆变器在所提出的系统中的较数较少; 2）不仅具有独立电力系统的改善的过载能力，还可以降低负载侧逆变器的容量; 3）控制简单，成本低。虽然飞轮速度的变化会导致频率变化，但调查显示，对于相当多的工业机器，允许小频率变化。通过飞轮感应电动机的适当设计，可以满足对频率变化的要求。本文介绍了满足公用事业需求的设计方法。进行了一些实验以验证所提出的系统和频率控制方法。实验结果表明，该系统简单实用，作为过载改进方法。

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