专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06870347B2 Permanent magnet synchronous motor driving system, and method of testing permanent magnet synchronous motor driving system 有权
标题翻译：永磁同步电机驱动系统，永磁同步电机驱动系统测试方法
公开(公告)号：US06870347B2
公开(公告)日：2005-03-22
申请号：US10342367
申请日：2003-01-15
申请人： Takayuki Mizuno , Junichi Takayama , Yoshitaka Higashi
发明人： Takayuki Mizuno , Junichi Takayama , Yoshitaka Higashi
IPC分类号： B66B1/30 , B66B5/02 , H02K21/14 , H02K21/22 , H02P6/00 , H02P27/06 , H02P29/00 , H02K21/00 , G01R27/26 , H02M7/5395
CPC分类号： H02P6/34 , Y10S388/903
摘要： A permanent magnet synchronous motor driving system includes: 1) a permanent magnet synchronous motor, and 2) an inverter. The permanent magnet synchronous motor includes three phase terminals. A resonant frequency is generated between an inductance and a ground electrostatic capacitance which are measured between the following: a) one of the three phase terminals of the permanent magnet synchronous motor, and b) a ground. The inverter drives the permanent magnet synchronous motor. The inverter generates a carrier frequency. The resonant frequency of the permanent magnet synchronous motor is free from a conformance with the carrier frequency of the inverter and is free from a proximity of the carrier frequency of the inverter.
摘要翻译：永磁同步电动机驱动系统包括：1）永磁同步电动机，2）逆变器。永磁同步电动机包括三相端子。在以下之间测量的电感和接地静电电容之间产生谐振频率：a）永磁同步电动机的三相端子之一，b）地。变频器驱动永磁同步电机。逆变器产生载波频率。永磁同步电动机的谐振频率不符合逆变器的载波频率，并且不受变频器载波频率的限制。

2. 发明授权

US5771164A Power supply converter for suppressing higher harmonics to output a stable voltage 失效
标题翻译：用于抑制高次谐波输出稳定电压的电源转换器
公开(公告)号：US5771164A
公开(公告)日：1998-06-23
申请号：US750861
申请日：1997-01-06
申请人： Yoshihiro Murai , Junichi Takayama
发明人： Yoshihiro Murai , Junichi Takayama
IPC分类号： H02M7/217 , G05F1/10 , H02M1/12 , H02M3/155 , H02M7/12 , H02M7/155 , G05F1/613
CPC分类号： H02M1/4208 , H02M1/4216 , Y02B70/126
摘要： A converter includes a rectifier 1 of the diode bridge connected across the alternating current power supply via an input filter F; a circuit 2 having an reactor L.sub.1, switching element Tr1, and the reverse current flow blocking diode D.sub.1 connected across output terminals of the diode bridge; a smoothing capacitor Cd charged according to an energy stored in the reactor L.sub.1 ; and a controller 3 arranged having a comparator 36 for comparing a signal of circuits 31 through 34 which detects a difference between the direct current output voltage Vd and the set (reference) voltage Vs and amplifies thereof with a triangular carrier wave 36 so as to control the transistor Tr1, the transistor Tr1 being controlled to be turned on or off according to the carrier wave frequency. When the transistor Tr1 is turned to ON, the energy is stored in the reactor L1 via the rectifier of the diode bridge 1. When the transistor Tr1 is turned to OFF, the capacitor Cd is charged according to the energy stored in the reactor L.sub.1. The current in the element Tr1 flows therethrough when the input voltage is low irrespective of the voltage across the capacitor Cd so that the input current provides the sinusoidal wave.
摘要翻译： PCT No.PCT / JP96 / 01879 Sec。 371日期1997年1月6日 102（e）日期1997年1月6日PCT PCT 1996年7月5日PCT公布。出版物WO97 / 03494 日期1997年3月1日A转换器包括通过输入滤波器F跨过交流电源连接的二极管桥的整流器1; 具有电抗器L1，开关元件Tr1和连接在二极管电桥的输出端上的反向电流流阻阻二极管D1的电路2; 根据存储在电抗器L1中的能量充电的平滑电容器Cd; 以及控制器3，其具有比较器36，用于比较检测直流输出电压Vd和设定（参考）电压Vs之差的电路31至34的信号，并用三角载波36放大，以便控制晶体管Tr1，晶体管Tr1根据载波频率被控制为导通或截止。当晶体管Tr1变为ON时，能量通过二极管桥1的整流器存储在电抗器L1中。当晶体管Tr1变为截止时，电容器Cd根据存储在电抗器L1中的能量进行充电。当输入电压低时，元件Tr1中的电流流过电容器Cd两端的电压，使得输入电流提供正弦波。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式