DEVELOPMENT OF INTERIOR PERMANENT MAGNET LINEAR SYNCHRONOUS GENERATOR THAT CAN CONVERT FROM WAVE POWER WITH HIGH EFFICIENCY.

开发可将波浪能高效转换的内置式永磁线性同步发电机。

基本信息

批准号：
16560249
负责人：
SANADA Masayuki
金额：
$ 2.18万
依托单位：
Osaka Prefecture University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

项目摘要

The aim of this research is development of the linear generator to achieve a highly effective wave activated power generation system, which doesn't need low efficiency air conversion equipment such as conventional system. The system complexity and expensiveness to disturb the practical use of the wave power generation system is caused because the rotation generator that has the characteristic that becomes high efficiency at high speed operation is driven by the slow reciprocated motion.In this research, various characteristics were examined to develop the linear generator that has the most effective structure. PM type linear synchronous generator (PM-LSG), hybrid type linear stepping generator (HB-LSTG), and high density type linear stepping generator (HD-LSTG) were examined. It is necessary to give the waterproof molding in the linear generator for the wave power generation. An enough induced voltage is obtained even by the gap length of 1mm or more in the PM-LSG. The LSTG type cannot show the performance enough. Moreover, it was clarified that there is optimum point of the maximum efficiency in the pole pitch about 24mm. Electrical energy that can be taken out of the wave is estimated roughly with about 1kW/m. If the generator is made multilayered structure, it has been understood that there is a possibility that the wave energy of 7kW/m can be collected at the high rate.The buried structure PM-LSG became about 10% high power from the surface mounted PM-LSG in the amount of the same magnet. Because the generator has reverse-saliency in the buried structure, the output and the efficiency of the generator are thought to be ameliorable further by the optimal current vector regulation with the converter.

本研究的目的是开发线性发电机以实现高效的波浪激活发电系统，该系统不需要传统系统等低效空气转换设备。由于具有高速运行时效率高的特性的旋转发电机是由缓慢的往复运动驱动的，因此造成了系统的复杂性和昂贵性，从而干扰了波浪发电系统的实际使用。在本研究中，对各种特性进行了研究。开发具有最有效结构的线性发电机。对PM型线性同步发电机（PM-LSG）、混合型线性步进发电机（HB-LSTG）和高密度型线性步进发电机（HD-LSTG）进行了研究。用于波浪发电的线性发电机有必要进行防水成型。即使PM-LSG的间隙长度为1mm以上，也能获得足够的感应电压。 LSTG类型不能充分显示性能。此外，还明确了在极距约24mm处存在最大效率的最佳点。可以从波浪中获取的电能粗略估计约为1kW/m。据了解，如果发电机采用多层结构，则有可能以高速率收集7kW/m的波能。埋入结构PM-LSG的功率比表面安装PM高约10% -LSG的量与磁铁相同。由于发电机在掩埋结构中具有反向凸极，因此发电机的输出和效率被认为可以通过转换器的最佳电流矢量调节来进一步改善。