公开(公告)号：US11965917B2

公开(公告)日：2024-04-23

申请号：US17791221

申请日：2020-10-06

申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

发明人： Yasuaki Mitsugi ,  Takashi Shigemasa

IPC分类号： G01R21/133 ,  G01R19/25

CPC分类号： G01R21/1331 ,  G01R19/2513

摘要： A power measurement device includes: a first three-phase to two-phase converter converting a three-phase voltage signal of three-phase AC power into a two-phase voltage signal; a second three-phase to two-phase converter converting a three-phase current signal of the three-phase AC power into a two-phase current signal; an instantaneous power calculator calculating an instantaneous value of active power of the three-phase AC power and an instantaneous value of reactive power of the three-phase AC power based on the two-phase voltage signal and the two-phase current signal; a first moving average calculator calculating multiple active power average values of different moving average data quantities; a second moving average calculator calculating multiple reactive power average values of different moving average data quantities; and calculators that calculate average active powers corresponding to a frequency of the three-phase AC power, and the reactive power corresponding to the frequency of the three-phase AC power.

公开(公告)号：US20180224486A1

公开(公告)日：2018-08-09

申请号：US15886642

申请日：2018-02-01

申请人： Landis+Gyr LLC

发明人： John T. Voisine

IPC分类号： G01R21/133 ,  H02B1/03 ,  H01F38/14

CPC分类号： G01R21/1331 ,  G01R21/06 ,  H01F38/14 ,  H01F38/34 ,  H02B1/03

摘要： An arrangement includes an A/D converter and a processing circuit. The A/D converter is configured to generate digital samples of voltage and current waveforms in a polyphase electrical system. The processing circuit is operably coupled to receive the digital samples from the A/D converter. The processing circuit configured is to obtain contemporaneous phase current and voltage samples IA, IB, IC and/or IN, and VA, VB, VC. The processing circuit is further configured to determine source leg current sample values based on three of the current samples of IA, IB, IC, and IN, and also based on a ratio of the impedance on one leg of a center-tapped source transformer secondary winding to another secondary winding of a source transformer. The processing circuit is further configured to determine a VA value based at least in part on the source leg current samples. The processing circuit is further configured to provide information representative of the VA calculation to one of a group consisting of a display, a communication circuit, a memory and a billing calculation unit.

公开(公告)号：US09998275B1

公开(公告)日：2018-06-12

申请号：US14694785

申请日：2015-04-23

申请人： Altera Corporation

发明人： Dan Pritsker

IPC分类号： H04L7/00 ,  H04B1/40 ,  G01R21/133 ,  G01R19/25 ,  G01R21/06 ,  G01R15/12

CPC分类号： H04L7/0087 ,  G01R15/12 ,  G01R15/125 ,  G01R19/25 ,  G01R19/2509 ,  G01R21/06 ,  G01R21/133 ,  G01R21/1331 ,  H04B1/40 ,  H04L7/00

摘要： Techniques and mechanisms disclosed herein add dithering noise to a receiver to reduce harmonics.

公开(公告)号：US20180100882A1

公开(公告)日：2018-04-12

申请号：US15710621

申请日：2017-09-20

申请人： Johnson Controls Technology Company

发明人： Aron M. Seiler ,  Philip G. Smyth ,  Rajiv K. Karkhanis

IPC分类号： G01R21/133 ,  G01R21/00

CPC分类号： G01R21/1331 ,  F24F11/30 ,  F24F11/46 ,  F24F2110/10 ,  F24F2110/50 ,  F25B49/025 ,  G01R21/005 ,  G01R21/1333

摘要： In an embodiment of the present disclosure, a method for determining power consumption of a unit of a heating, ventilating, and air conditioning (HVAC) system includes providing conditioned air to the unit from an HVAC unit of the HVAC system. The method also includes receiving power data indicative of a total power consumed by the HVAC unit, receiving airflow data indicative of a rate of the conditioned air received by the unit from the HVAC unit, determining a power consumption of the unit based on the power data and the airflow data, and outputting the power consumption of the unit.

公开(公告)号：US20170109467A1

公开(公告)日：2017-04-20

申请号：US15127959

申请日：2015-02-12

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Noriyoshi SHIMIZU ,  Takashi NISHIYAMA ,  Fumiyoshi MUKOYAMA ,  Tomoharu NAKAHARA

IPC分类号： G06F17/50 ,  G06N5/04 ,  G01R21/133

CPC分类号： G06F17/5045 ,  G01R21/00 ,  G01R21/1331 ,  G06F2217/78 ,  G06N5/04 ,  G06Q10/06 ,  G06Q50/06

摘要： A behavior prediction device includes an acquisition interface for acquiring a power consumption value by an electric load for each of branch circuits divided inside a distribution board in an object space (a dwelling), and a predictor for working out a stop time based on power information in which the power consumption value is related with date and time at which the power consumption value is acquired. The stop time is a time at which the power consumption value will fall to a predetermined reference value. Based on the stop time, the predictor predicts a kind of specified behavior of a user in the object space and a time at which the behavior will occur.

公开(公告)号：US20150355635A1

公开(公告)日：2015-12-10

申请号：US14761093

申请日：2013-01-16

申请人： SCHNEIDER ELECTRIC USA, INC.

发明人： John C. Van Gorp ,  Shawn Edward Balding ,  Jacques Roland van Campen

IPC分类号： G05B23/02 ,  H02J3/14 ,  G01R21/133

CPC分类号： G05B23/0221 ,  G01R19/2513 ,  G01R21/133 ,  G01R21/1331 ,  H02J3/14 ,  H02J2003/143 ,  Y04S20/38

摘要： A method of monitoring power usage of a load includes defining one or more parameters of the load that vary with a mode of operation of the load, receiving measurement data related to the one or more parameters of the load over a first period of time, recording the measurement data, determining a plurality of groups, each group defining a set of measurements in a continuous range of values, each group having a lower threshold value and an upper threshold value, the lower and upper threshold values defined by having less than a minimum threshold number of recorded measurements of the lower and upper threshold values, and associating a mode of operation with each of the plurality of groups.

摘要翻译： 一种监测负载的功率使用的方法包括定义负载的一个或多个参数，其随着负载的运行模式而变化，在第一时间段内接收与负载的一个或多个参数相关的测量数据，记录 测量数据，确定多个组，每个组在连续的值范围内定义一组测量，每个组具有较低的阈值和较高的阈值，所述下限和上限阈值由具有小于最小值 下限阈值和上限阈值的记录测量的阈值数量，以及将操作模式与多个组中的每个组相关联。

公开(公告)号：US20150153394A1

公开(公告)日：2015-06-04

申请号：US14095709

申请日：2013-12-03

申请人： SolarCity Corporation

发明人： Eric Daniel Carlson ,  Karthikeyan Varadarajan

IPC分类号： G01R21/133 ,  G05B15/02

CPC分类号： G01R21/1331 ,  G05B15/02 ,  G05B2219/2642 ,  H02J3/28 ,  H02J3/30 ,  H02J3/32 ,  H02J7/35 ,  Y02B70/3241 ,  Y04S20/227

摘要： Techniques for controlling an energy storage device to reduce peak power demand at a site are provided. In one embodiment, instantaneous power usage at the site can be monitored, where the instantaneous power usage corresponds to power that is instantaneously imported or exported at a point of common coupling (PCC) between the site and a utility-managed energy grid. A historical power usage value for the site can then be calculated based on the monitored instantaneous power usage, and the historical power usage value can be compared with a target peak value plus a buffer value. If the historical power usage value exceeds the target peak value plus the buffer value, the target peak value can be set to the historical power usage value.

摘要翻译： 提供了用于控制能量存储装置以减少现场峰值功率需求的技术。 在一个实施例中，可以监视现场的瞬时功率使用，其中瞬时功率使用对应于在站点和公用事业管理的能量网之间的公共耦合点（PCC）瞬时导入或导出的功率。 然后可以基于所监视的瞬时功率使用来计算站点的历史功率使用值，并且可以将历史功率使用值与目标峰值加上缓冲器值进行比较。 如果历史功率使用值超过目标峰值加上缓冲器值，则可以将目标峰值设定为历史功率使用值。

公开(公告)号：US20150088441A1

公开(公告)日：2015-03-26

申请号：US14367595

申请日：2011-12-28

申请人： Masanori Nakata ,  Makoto Katsukura ,  Masaaki Yabe ,  Noriyuki Kushiro

发明人： Masanori Nakata ,  Makoto Katsukura ,  Masaaki Yabe ,  Noriyuki Kushiro

IPC分类号： G01R21/06

CPC分类号： G01R21/06 ,  G01R21/1331

摘要： A power measure calculates, based on a current and a voltage measured at a predetermined location in a power supply line, active power and apparent power for each predetermined time period based on utilization of plural kinds of electric facilities connected to the power supply line. A data memory accumulates and stores data regarding the active power and the apparent power calculated by the power measure in a time-series manner. A variation detector analyzes data regarding the active power by what corresponds to a predetermined time period and stored in the data memory to detect a time slot at which there is an operation change in any one of the electric facilities. A distribution estimator calculates, when the variation detector detects the time slot, a power factor in the time slot, and estimates power consumption for each kind of the electric facilities in the time slot.

摘要翻译： 功率测量基于利用连接到电源线的多种电气设备，基于在电源线中的预定位置处测量的电流和电压来计算每个预定时间段的有功功率和视在功率。 数据存储器以时间序列的方式累积并存储关于通过功率测量计算的有功功率和视在功率的数据。 变异检测器通过与预定时间段相对应的存储在数据存储器中的有关功率的数据来分析有关功率的数据，以检测任何一个电气设施中存在操作改变的时隙。 分布估计器在变化检测器检测到时隙时计算时隙中的功率因数，并且估计时隙中的每种电气设施的功耗。

公开(公告)号：US20150081239A1

公开(公告)日：2015-03-19

申请号：US14548181

申请日：2014-11-19

申请人： QUALCOMM Incorporated

发明人： Ju-Yong Do ,  Sai Pradeep Venkatraman ,  Weihua Gao ,  Gengsheng Zhang ,  Lionel Jacques Garin

IPC分类号： G01R22/00 ,  G01R21/133

CPC分类号： G01R22/00 ,  G01R21/1331 ,  G01S5/021 ,  G01S5/0252 ,  G01S5/14 ,  H04B17/00 ,  H04B17/318 ,  H04W4/02

摘要： Disclosed are systems, methods and devices for application of determining position information for mobile devices. In specific implementations, measurement of a signal travel time and a signal's strength may be combined to characterize a transmission power of the signal's transmitter. The characterized transmission power may be applied to affect expected signal strength signature values for use of the signal's transmitter may be updated in order to enhance a location based service where location may be effected by accuracy of a transmitter's power.

摘要翻译： 公开了用于应用确定移动设备的位置信息的系统，方法和设备。 在具体实现中，信号行进时间和信号强度的测量可以被组合以表征信号发射机的发射功率。 可以应用表征的发射功率以影响用于信号的发射机的预期信号强度特征值，以便增强基于位置的服务，其中位置可以通过发射机功率的精度来实现。

公开(公告)号：US20150025702A1

公开(公告)日：2015-01-22

申请号：US14312256

申请日：2014-06-23

申请人： LSIS CO., LTD.

发明人： Young Min KANG ,  Young Gyu YU

IPC分类号： G01R21/133

CPC分类号： G01R21/1331 ,  H02J3/32 ,  H02J3/383 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E70/30

摘要： An energy management system controlling energy flowing into or out of a battery is provided. The energy management system includes a data receiving unit receiving load data and energy data; a total load amount calculating unit calculating the total amount of power consumption by using the received load data; an energy generation amount calculating unit calculating the total amount of power generation by using the received energy data; a comparator comparing the calculated total amount of the power consumption with the calculated total amount of the power generation; and a switch connecting the battery to a power supply according to a comparison result.

摘要翻译： 提供控制流入或流出电池的能量的能量管理系统。 能量管理系统包括接收负载数据和能量数据的数据接收单元; 总负载量计算单元，通过使用接收到的负载数据来计算总耗电量; 能量产生量计算单元，通过使用所接收的能量数据来计算发电总量; 比较计算的功耗总量与计算出的发电总量的比较器; 以及根据比较结果将电池连接到电源的开关。