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    • 1. 发明授权
    • Harmonic mitigating method and apparatus
    • 谐波缓解方法和装置
    • US06549434B2
    • 2003-04-15
    • US09956780
    • 2001-09-20
    • Dongsheng ZhouGary L. SkibinskiWalt A. MaslowskiBrian R. BuchholzNick N. Guskov
    • Dongsheng ZhouGary L. SkibinskiWalt A. MaslowskiBrian R. BuchholzNick N. Guskov
    • H02J102
    • H02J3/01H02M1/126Y02E40/40
    • A harmonic mitigating apparatus connected between a three phase power source and a load provides a multiple-winding reactor for reducing harmonics directed from the load to the source, the apparatus including, for each system phase, first and second line windings in series between the source and load and oriented so as to have the same polarity such that the winding fluxes add thereby increasing total reactance to harmonics directed from the load to the supply, the apparatus also including at least one trap circuit including a series inductance and capacitor for each phase and linked between the first and second line windings and a neutral point (or another phase), the trap circuit characterized by a reactance that is lower than the reactance of the first line winding such that harmonics flow into the trap circuit, for each phase, at least two of the first and second line windings and the trap winding arranged on the same core.
    • 连接在三相电源和负载之间的谐波减轻装置提供一个用于减少从负载引导到源的谐波的多绕组电抗器,该装置包括对于每个系统相位,在源极之间串联的第一和第二线绕组 并且负载和取向以具有相同的极性,使得绕组通量相加,从而增加对从负载到电源的谐波的总电抗,该装置还包括至少一个包括用于每相的串联电感和电容器的陷波电路,以及 连接在第一和第二线绕组和中性点(或另一相位)之间,该陷阱电路的特征在于低于第一线绕组的电抗的电抗,使得每个相的谐波流入陷阱电路 第一和第二线绕组中的至少两个和陷波绕组布置在相同的芯上。
    • 2. 发明授权
    • Harmonic blocking reactor for nine-phase converter system
    • 用于九相转换器系统的谐波阻塞电抗器
    • US06385064B1
    • 2002-05-07
    • US09850479
    • 2001-05-07
    • Dongsheng ZhouGary L. SkibinskiWalt A. MaslowskiBrian R. BuchholzBruce A. HacheyNickolay N. Guskov
    • Dongsheng ZhouGary L. SkibinskiWalt A. MaslowskiBrian R. BuchholzBruce A. HacheyNickolay N. Guskov
    • H02M112
    • H02M7/08
    • A nine-phase AC to DC power converter system may exhibit current unbalance problem among bridges due to two reasons: slight voltage magnitude difference among different sets of three-phase supplies and pre-existing voltage harmonics in the power supply lines. Since the unpredictability of the pre-existing harmonics and manufacturing uncertainty of the nine-phase power supply (it is usually a three to nine phase transformer), all devices in the rectifier bridges are required to carry much higher than necessary current magnitude and have to be designed oversize, as much as 100% up. Here we describe various topologies of harmonic blocking reactors to combat this problem. The described topologies can significantly improve this situation and thus avoid the over-sizing exercise (cost) when such converter system is built. The principle can be easily extended to any multi-phase AC to DC or DC to AC power conversion system of more than nine phases. The principle can be extended to any multi-phase converter system with more than nine phases.
    • 九相交直流功率转换器系统可能在电桥之间呈现电流不平衡问题,原因有两个:电源线中不同三相电源组与预先存在的电压谐波之间的轻微电压幅度差异。 由于九相电源的预先存在的谐波和制造不确定度的不可预测性(通常是三相到九相变压器),所以整流桥中的所有器件都需要承载远高于必需的电流值,并且必须 设计超大,多达100%。 在这里我们描述了谐波阻塞反应堆的各种拓扑结构来解决这个问题。 所描述的拓扑结构可以显着改善这种情况,从而避免在建立这样的转换器系统时过大的运行(成本)。 该原理可以容易地扩展到超过九个阶段的任何多相AC到DC或DC到AC电力转换系统。 该原理可以扩展到具有九个以上阶段的任何多相转换器系统。
    • 3. 发明授权
    • Twelve-phase transformer configuration
    • 十二相变压器配置
    • US06198647B1
    • 2001-03-06
    • US09627810
    • 2000-07-28
    • Dongsheng ZhouNickolay N. GuskovGary L. Skibinski
    • Dongsheng ZhouNickolay N. GuskovGary L. Skibinski
    • H02M506
    • H01F30/14H01F2019/085H02M7/08
    • The invention includes an autotransformer for converting three-phase AC power to twelve-phase AC power using only three coils (e.g., no primary or dead windings are required). The autotransformer includes three coils, each coil including a plurality of serial windings that together form a polygon. Twelve output nodes are provided between adjacent winding pairs, the windings sized and arranged such that adjacent output voltages are separated by 30 degree phase shift and such that output voltage magnitudes are essentially identical. In some embodiments step-up, step-down and unity gain input node sets are provided while in other embodiments unity gain and either step-up or step-down input node sets are provided. The invention also includes an isolation transformer configuration that uses a secondary configuration that is identical to inventive autotransformer configurations.
    • 本发明包括一个自耦变压器,用于仅使用三个线圈将三相交流电转换为十二相交流电(例如,不需要主绕组或死绕组)。 自耦变压器包括三个线圈,每个线圈包括一起形成多边形的多个串联绕组。 在相邻绕组对之间提供十二个输出节点,绕组的尺寸和布置使得相邻的输出电压被相隔30度的相移并且使得输出电压幅度基本相同。 在一些实施例中,提供降压和单位增益输入节点集,而在其他实施例中提供了单位增益和提供升压或降压输入节点集。 本发明还包括使用与本发明的自耦变压器配置相同的次级配置的隔离变压器配置。
    • 6. 发明授权
    • Regulation of wavelength shift and perceived color of solid state lighting with temperature variation
    • 固态照明随温度变化的波长偏移和感知颜色的调节
    • US08264448B2
    • 2012-09-11
    • US11927173
    • 2007-10-29
    • Anatoly ShteynbergHarry RodriguezBradley M. LehmanDongsheng Zhou
    • Anatoly ShteynbergHarry RodriguezBradley M. LehmanDongsheng Zhou
    • G09G3/36
    • H05B33/0872H05B33/0818H05B33/086H05B33/0866
    • Representative embodiments of the disclosure provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.
    • 本公开的代表性实施例提供了一种控制从固态照明系统发射的光的强度和光谱的系统,装置和方法。 固态照明系统在全强度和选定温度下具有第一发射光谱,固态照明系统的第一电偏压产生第一波长位移,并且固态照明系统的第二电偏压产生第二 相反的波长偏移。 代表性实施例提供用于接收指定所选择的强度水平或选定温度的信息,并且向固态照明系统提供组合的第一电偏置和第二电偏置以产生具有所选强度水平的发射光并且具有预定的 在预定温度范围内的第一个发射光谱的方差。