-
1.发明授权公开(公告)号：US10326272B2
公开(公告)日：2019-06-18
申请号：US15361039
申请日：2016-11-24
摘要： A system and method are provided for regulating voltage received from an electric utility grid. A unified power flow controller is provided at a point of power consumption and includes a terminal electrically coupled to a power source, which receives a grid alternating current and a grid alternating voltage from the electric utility grid. A power converter is electrically coupled to the terminal and includes an active rectifier that converts substantially all of the grid alternating current to a direct current and an inverter that converts the direct current to a load alternating current and a load alternating voltage, the load alternating voltage being less than the grid alternating voltage. A transformer is provided having first terminals electrically coupled to the power source and second terminals electrically coupled to an output of the inverter. The transformer injects the load alternating voltage in series with the grid alternating voltage.
-
2.发明申请公开(公告)号：US20170338740A1
公开(公告)日：2017-11-23
申请号：US15489676
申请日：2017-04-17
发明人： John L Lumsden
摘要： An IGBT/FET-based energy savings device, system and method wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal appliance voltage is saved, thereby conserving energy. Phase input connections are provided for inputting analog signals into the device and system. A magnetic flux concentrator senses the incoming analog signal and a volts zero crossing point detector determines the zero volts crossing point of the signal. The positive half cycle and negative half cycle of the signal are identified and routed to a digital signal processor for processing the signal. The signal is reduced by pulse width modulation and the reduced amount of energy is outputted, thereby yielding an energy savings for an end user.
-
公开(公告)号：US09716431B2
公开(公告)日：2017-07-25
申请号：US14250797
申请日：2014-04-11
发明人： John L Lumsden
摘要： An IGBT/FET-based energy savings device, system and method wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal appliance voltage is saved, thereby conserving energy. Phase input connections are provided for inputting analog signals into the device and system. A magnetic flux concentrator senses the incoming analog signal and a volts zero crossing point detector determines the zero volts crossing point of the signal. The positive half cycle and negative half cycle of the signal are identified and routed to a digital signal processor for processing the signal. The signal is reduced by pulse width modulation and the reduced amount of energy is outputted, thereby yielding an energy savings for an end user.
-
公开(公告)号：US09628015B2
公开(公告)日：2017-04-18
申请号：US14472933
申请日：2014-08-29
摘要： A system and method are provided for saving energy for an electric motor having periodic load variations by reducing the supply voltage to the motor during an open loop mode. The motor and system will speed up, allowing the natural kinetic energy of the cyclic motion to perform part of the pumping action. A closed loop controller computes information from the observed phase angle between the voltage and current supplied to the motor. By reducing the supply voltage to the motor, the observed phase angle may be reduced to a target phase angle value. By allowing some current flow, primarily of a reactive nature, an observable feedback parameter may be used in the closed loop control system as an indication of the load condition, to which the closed loop motor controller may react, supplying power when needed, such as in the energy consumption mode.
-
5.发明申请METER/VOLTAGE REGULATOR WITH VOLT-AMPERE REACTIVE CONTROL POSITIONED AT CUSTOMER SITE 审中-公开带有电压反应控制的仪表/电压调节器定位在客户站点公开(公告)号：US20150236510A1
公开(公告)日：2015-08-20
申请号：US14623796
申请日：2015-02-17
发明人： Christopher John Recio , Christopher Lynn Caswell , Michael Gerard Tobin , Zoran Miletic , Sergio Pieiga, III
CPC分类号： H02M5/02 , H02J3/1842 , H02J3/1892 , H02J3/32 , Y02E40/22 , Y10T307/658
摘要： A method and system are provided for sourcing and sinking reactive power to an electric grid. The control system includes a terminal electrically coupled to a power source that originates from an electric utility grid. The terminal receives a grid alternating current having a real power component and a reactive power component. A power converter is electrically coupled to the terminal, the power converter includes an active rectifier that converts substantially all of the grid alternating current to a direct current and an energy storage device that stores energy supplied by the direct current. The active rectifier sources the reactive power component and the stored energy through the terminal to the electric utility grid. The power converter further includes an inverter that converts the direct current to a load alternating current having at least one of a load real power component and a load reactive power component.
摘要翻译： 提供了一种方法和系统，用于向无功电力供电和吸收无功功率。 控制系统包括电连接到源自电力公用电网的电源的端子。 终端接收具有实际功率分量和无功功率分量的电网交流电。 功率转换器电耦合到端子，功率转换器包括有源整流器，其将基本上将所有的电网交流电转换成直流电，而储能装置存储由直流供电的能量。 有源整流器将无功功率分量和存储的能量通过端子馈送到电力公用电网。 功率转换器还包括将直流电转换成具有负载有功功率分量和负载无功功率分量中的至少一个的负载交流电的逆变器。
-
公开(公告)号：US10128768B2
公开(公告)日：2018-11-13
申请号：US14623796
申请日：2015-02-17
发明人： Christopher John Recio , Christopher Lynn Caswell , Michael Gerard Tobin , Zoran Miletic , Sergio Pieiga, III
摘要： A method and system are provided for sourcing and sinking reactive power to an electric grid. The control system includes a terminal electrically coupled to a power source that originates from an electric utility grid. The terminal receives a grid alternating current having a real power component and a reactive power component. A power converter is electrically coupled to the terminal, the power converter includes an active rectifier that converts substantially all of the grid alternating current to a direct current and an energy storage device that stores energy supplied by the direct current. The active rectifier sources the reactive power component and the stored energy through the terminal to the electric utility grid. The power converter further includes an inverter that converts the direct current to a load alternating current having at least one of a load real power component and a load reactive power component.
-
7.发明申请公开(公告)号：US20170149244A1
公开(公告)日：2017-05-25
申请号：US15361039
申请日：2016-11-24
CPC分类号： H02J3/16 , H02J3/1814 , H02J3/32 , H02J3/46 , Y02E40/18
摘要： A system and method are provided for regulating voltage received from an electric utility grid. A unified power flow controller is provided at a point of power consumption and includes a terminal electrically coupled to a power source, which receives a grid alternating current and a grid alternating voltage from the electric utility grid. A power converter is electrically coupled to the terminal and includes an active rectifier that converts substantially all of the grid alternating current to a direct current and an inverter that converts the direct current to a load alternating current and a load alternating voltage, the load alternating voltage being less than the grid alternating voltage. A transformer is provided having first terminals electrically coupled to the power source and second terminals electrically coupled to an output of the inverter. The transformer injects the load alternating voltage in series with the grid alternating voltage.
-
公开(公告)号：US20140346896A1
公开(公告)日：2014-11-27
申请号：US14451891
申请日：2014-08-05
发明人： John L. Lumsden , Rafael E. Zaga
CPC分类号： G05B15/02 , G01R21/00 , H02J1/14 , Y10T307/832 , Y10T307/858
摘要： A system and method are provided for managing energy usage that includes obtaining an allocated power value associated with a predetermined time period, metering at least one of consumed power and corresponding consumed energy to determine a consumed power value and a consumed energy value and prompting for a reduced load condition when the consumed power value exceeds the allocated power value. The system and method may further include obtaining a line voltage value, comparing the line voltage value to a threshold voltage value, and obtaining energy saving parameters that define a reduced voltage value. A reduced power value that corresponds to the reduced voltage value may be supplied, the reduced power value being supplied when the line voltage value exceeds the threshold voltage value.
摘要翻译： 提供了一种用于管理能量使用的系统和方法，其包括获得与预定时间段相关联的分配的功率值，计量消耗功率和相应的消耗能量中的至少一个以确定消耗的功率值和消耗的能量值，并提示为 当消耗的功率值超过分配的功率值时，减小负载状况。 系统和方法还可以包括获得线路电压值，将线路电压值与阈值电压值进行比较，以及获得定义降低电压值的节能参数。 可以提供对应于降低的电压值的降低的功率值，当线路电压值超过阈值电压值时提供降低的功率值。
-
公开(公告)号：US20140343744A1
公开(公告)日：2014-11-20
申请号：US14211746
申请日：2014-03-14
IPC分类号： G05F1/66
CPC分类号： G05F1/66 , H02J3/14 , Y02B70/3225 , Y04S20/222
摘要： An energy savings device, system and method are provided to improve electric utility grid stability by reducing power demand at a point of consumption. The method may include monitoring a power signal characteristic, obtaining a stability parameter for the utility grid, determining a stability condition based on the monitored power signal characteristic and the stability parameter; and regulating, at the point of consumption, an amount of energy received from the utility grid based on the determined stability condition. The system may include an energy savings system in communication with the electric utility grid and a processor and non-transitory computer-readable medium configured to perform the method.
摘要翻译： 提供节能装置，系统和方法，以通过减少消耗点的功率需求来改善电力公用电网的稳定性。 该方法可以包括监测功率信号特性，获得公用电网的稳定性参数，基于所监测的功率信号特性和稳定性参数来确定稳定性条件; 并根据所确定的稳定性条件来调节从公用电网接收的能量消耗量。 该系统可以包括与电力公用电网通信的节能系统和被配置为执行该方法的处理器和非暂时性计算机可读介质。
-
10.发明授权System and method for saving energy when driving masses having periodic load variations 有权当驱动具有周期性负载变化的质量时，节约能源的系统和方法公开(公告)号：US09240745B2
公开(公告)日：2016-01-19
申请号：US14192244
申请日：2014-02-27
发明人： Vasan Venkataraman
CPC分类号： H02P23/0036 , H02P1/04 , H02P6/182 , H02P6/28 , H02P23/0004 , H02P23/24
摘要： A system and method are described for conserving energy by decoupling a supply voltage to an electric motor operating under periodic load variations. A time segment value corresponding to a duration of periodic load variations is obtained and the supply voltage is adjusted to maintain an observed phase angle for a supply voltage and current at a value corresponding to a target phase angle. At least one off-time period is identified during the time segment value that corresponds to when the adjusted supply voltage is applied to the motor. During a remainder of the time segment value, at least one turn-on time period is provided when the supply voltage is coupled to the motor. The system may enter to a closed-loop control process after a predetermined period of time to adjust to any changes in the periodic load variations.
摘要翻译： 描述了通过将电源电压与在周期性负载变化下工作的电动机分离来节省能量的系统和方法。 获得对应于周期性负载变化的持续时间的时间段值，并且调整电源电压以将电源电压和电流的观察到的相位角保持在与目标相位角对应的值。 在对应于调整后的电源电压施加到电动机的时间段值期间，识别至少一个关闭时间段。 在剩余时间段值期间，当电源电压耦合到电动机时，提供至少一个接通时间段。 系统可以在预定的时间段之后进入闭环控制过程，以适应周期性负载变化的任何变化。
-
-
-
-
-
-
-
-
-
搜索结果
17 条记录 (耗时 0.019 秒)
