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    • 1. 发明申请
    • SYNCHRONOUS MOTOR AND SYSTEM FOR DRIVING SYNCHRONOUS MOTOR
    • 同步电动机和同步电机驱动系统
    • US20110273128A1
    • 2011-11-10
    • US13145180
    • 2010-08-05
    • Noriyoshi Nishiyama
    • Noriyoshi Nishiyama
    • H02P25/02H02K11/00H02K3/28
    • H02K21/222H02K3/28H02K16/00H02P5/00H02P25/22H02P2207/073
    • Disclosed are a synchronous motor having reduced torque ripple while having a high torque and system for driving the synchronous motor. The synchronous motor comprises a rotor (2) and a stator (3), and U-phase coils (91; 91a, 91b, and the like), V-phase coils (92; 92ab, and the like), and W-phase coils (93; 93ac and the like) are wound around sections of the yoke each located between two adjacent stator teeth (7; 7a, 7ab, and the like). The number of turns in each coil and the direction in which each coil is wound are set to compensate for a difference between a timing at which a magnetic field produced at each stator tooth is at a maximum value and a timing at which a point between magnetic poles (10, 11, 11, and the like) passes by the stator tooth as the rotor (2) rotates, the difference in timing being caused by a difference between the interval between the magnetic poles and the interval between the stator teeth.
    • 公开了一种具有降低的转矩脉动的同步电动机,同时具有用于驱动同步电动机的高扭矩和系统。 同步电动机包括转子(2)和定子(3),U相线圈(91; 91a,91b等),V相线圈(92; 92ab等)和W- 相位线圈(93; 93ac等)缠绕在磁轭的各个位于两个相邻的定子齿(7; 7a,7ab等之间)的部分。 每个线圈中的匝数和每个线圈缠绕的方向被设置为补偿每个定子齿处产生的磁场的时刻处于最大值的时刻与磁化之间的点之间的时刻 当转子(2)旋转时,极(10,11,11等)通过定子齿,正时的差异是由磁极间的间隔与定子齿之间的间隔之差引起的。
    • 2. 发明授权
    • Drive circuits
    • 驱动电路
    • US07868573B2
    • 2011-01-11
    • US11652221
    • 2007-01-11
    • Eric Anthony Lewis
    • Eric Anthony Lewis
    • H02K3/28H02P27/08
    • H02P25/22H02K3/28H02P25/18H02P27/08H02P2207/073
    • A drive circuit includes an ac network and first and second network rectifier/inverters (which can be active or passive) that are connected to the ac network in parallel. A first PWM rectifier/inverter is connected to the first network rectifier/inverter through a first dc link. A second PWM rectifier/inverter is connected to the second network rectifier/inverter through a second dc link. A first two-layer stator winding having a plurality of individual stator coils is connected to the first PWM rectifier/inverter and a second two-layer stator winding having a plurality of individual stator coils is connected to the second PWM rectifier/inverter. The stator coils of the first stator winding and the stator coils of the second stator winding are interconnected such that, in use, the vector sum of voltages across the stator coils in the first stator winding is substantially equal to the vector sum of voltages across the stator coils in the second stator winding. This has the advantageous effect of reducing the PWM frequency current harmonics flowing in the first and second stator windings.
    • 驱动电路包括并联连接到交流网络的交流网络和第一和第二网络整流器/逆变器(其可以是主动或被动的)。 第一个PWM整流器/逆变器通过第一个直流链路连接到第一个网络整流器/逆变器。 第二个PWM整流器/逆变器通过第二个直流链路连接到第二个网络整流器/逆变器。 具有多个单独的定子线圈的第一双层定子绕组连接到第一PWM整流器/逆变器,并且具有多个单个定子线圈的第二双层定子绕组连接到第二PWM整流器/逆变器。 第一定子绕组的定子线圈和第二定子绕组的定子线圈互连,使得在使用中,第一定子绕组中的定子线圈两端的电压的矢量和基本上等于横跨 第二定子绕组中的定子线圈。 这具有减少在第一和第二定子绕组中流动的PWM频率电流谐波的有利效果。
    • 3. 发明授权
    • Controller of doubly-fed induction generator
    • 双馈感应发电机控制器
    • US07638983B2
    • 2009-12-29
    • US11987540
    • 2007-11-30
    • Jung-Woo ParkKi-Wook LeeDong-Wook Kim
    • Jung-Woo ParkKi-Wook LeeDong-Wook Kim
    • H02H7/06H02P9/00H02P9/04F03D9/00H02M7/48
    • H02P9/007H02M5/4585H02M7/49H02M2007/4835H02P2207/073
    • Disclosed is a controller of a grid coupled type doubly-fed induction generator having a multi-level converter topology, which can control the doubly-fed induction generator having a high voltage specification and can perform a fault ride-through function, an anti-islanding function and a grid voltage synchronization function required for a dispersed power generation facility. The controller makes a H-bridge multi-level converter generate a three-phase voltage waveform resulted from the structure that single-phase converters each being composed of a 2-leg IGBT are stacked in a serial manner, and controls a rotor current so as to make the rotor coil of the doubly-fed induction generator in charge of a slip power only. The boost converter is composed of a 3-leg IGBT and a boost inductor generating a direct current voltage of its source required for the H-bridge multi-level converter.
    • 公开了具有多电平转换器拓扑的电网耦合型双馈感应发电机的控制器,其可以控制具有高电压规格的双馈感应发电机,并且可以执行故障穿越功能,防孤岛 功能和分散式发电设备所需的电网电压同步功能。 控制器使得H桥多电平转换器产生由串联方式堆叠的由双腿IGBT组成的单相转换器的结构所产生的三相电压波形,并且控制转子电流,以便 以使双馈感应发电机的转子线圈仅承担滑动功率。 升压转换器由3脚IGBT和升压电感组成,产生H桥多电平转换器所需的直流电源电压。