SVPWM快速算法在微型燃机软启动中的应用  

Application of SVPWM Fast Control Algorithm to Microturbine Soft Start-up

作　　者：闫士杰[1] 耿加民 张化光[1] 陈宏志[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004 [2]哈尔滨东安发电机(集团)有限公司新能源公司,黑龙江哈尔滨150066

出　　处：《控制工程》2008年第1期88-90,共3页Control Engineering of China

基　　金：国家863重大能源专项基金资助项目(2002AA503020)

摘　　要：微型燃机是靠其内部的永磁同步机系统进行软启动的,而在永磁同步机控制系统中,空间电压矢量调制(SVPWM)是其主要的控制方法之一。针对目前SVPWM算法存在计算工作量大的缺点,提出了一种新型的快速SVPWM控制算法。该算法无需进行复杂运算,只需进行简单的比较和普通运算,就可完成扇区判断和矢量作用时间的计算,解决了常规SVPWM算法中由于三角函数的计算量大而带来的系统性能下降问题。将该算法在100 kW微型燃机软启动系统中进行了实验,并与常规SVPWM算法的通用变频器比较,其结果表明,在启动快速性等性能方面,均优于常规的SVPWM算法。Microturbine generator is softly started by permanent magnet synchronous motor （PMSM） control system in it. In PMSM control system, space voltage vector modulation （SVPWM）is one of main method, but it needs more calculation. A novel fast algorithm of SVPWM is presented. The algorithm has not any complex operation. It has only eomparation and normal arithmetic operations for the sector judge and calculation of vector operating time. It eliminates the conventional SVPWM massive calculation of trigonometric function, and the system performance is improved. The experiment result to 100 kW micro-turbine PMSM system shows that the algorithm is more excellent than the conventional SVPWM in start characteristics and performance.

关 键 词：微型燃机 空间电压矢量 PWM 永磁同步机 快速算法 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]