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    Power inverter implementing phase skipping control
    1.
    发明授权
    Power inverter implementing phase skipping control 有权
    电力逆变器实现跳闸控制

    公开(公告)号：US09473044B2

    公开(公告)日：2016-10-18

    申请号：US14271949

    申请日：2014-05-07

    Applicant: University of Central Florida Research Foundation, Inc.

    Inventor： Utsav Somani ,  Ahmadreza Amirahmadi ,  Charles Jourdan ,  Issa Batarseh

    IPC: H02M7/537 ,  H02M7/5387 ,  H02P23/00 ,  H02P27/02

    CPC classification number: H02M7/53875 ,  H02M7/537 ,  H02P23/00 ,  H02P27/02

    Abstract: A power inverter includes a DC/AC inverter having first, second and third phase circuitry coupled to receive power from a power source. A controller is coupled to a driver for each of the first, second and third phase circuitry (control input drivers). The controller includes an associated memory storing a phase skipping control algorithm, wherein the controller is coupled to receive updating information including a power level generated by the power source. The drivers are coupled to control inputs of the first, second and third phase circuitry, where the drivers are configured for receiving phase skipping control signals from the controller and outputting mode selection signals configured to dynamically select an operating mode for the DC/AC inverter from a Normal Control operation and a Phase Skipping Control operation which have different power injection patterns through the first, second and third phase circuitry depending upon the power level.

    Abstract translation: 电力逆变器包括具有耦合以从电源接收功率的第一，第二和第三相电路的DC / AC逆变器。 控制器耦合到第一，第二和第三相电路（控制输入驱动器）中的每一个的驱动器。 控制器包括存储相位跳过控制算法的相关存储器，其中控制器被耦合以接收包括由电源产生的功率电平的更新信息。 驱动器耦合到第一，第二和第三相电路的控制输入，其中驱动器被配置为用于接收来自控制器的跳频控制信号，并且输出模式选择信号，其被配置为动态地选择DC / AC逆变器的工作模式 正常控制操作和相跳过控制操作，其根据功率水平通过第一，第二和第三相电路具有不同的功率注入模式。

    GaN-based multiport multilevel converter/inverter
    2.
    发明授权
    GaN-based multiport multilevel converter/inverter 有权

    公开(公告)号：US11682983B2

    公开(公告)日：2023-06-20

    申请号：US17575201

    申请日：2022-01-13

    Applicant: University of Central Florida Research Foundation, Inc.

    Inventor： Mohamed Tamasas Elrais ,  Issa Batarseh

    IPC: H02J4/00 ,  H02M7/483 ,  H02M3/335

    CPC classification number: H02M7/483 ,  H02M3/33569

    Abstract: A multiport multilevel converter/inverter includes a connection point with a two-line connection. The multiport multilevel converter/inverter also includes a capacitor electrically coupled across the two-line connection of the connection point. The multiport multilevel converter/inverter also has a first flying capacitor multilevel path with a first external two connection port configured to connect outside of the multiport multilevel converter/inverter, and a first interface conveying DC power and that is electrically coupled to the connection point. The multiport multilevel converter/inverter also includes a second flying capacitor multilevel path with a second external two connection port configured to connect outside of the multiport multilevel converter/inverter, and a second interface conveying DC power and that is electrically coupled to the connection point.

    Method of adaptive solar tracking using variable step size
    4.
    发明授权
    Method of adaptive solar tracking using variable step size 有权
    使用可变步长的适应性太阳跟踪方法

    公开(公告)号：US08552286B2

    公开(公告)日：2013-10-08

    申请号：US13674252

    申请日：2012-11-12

    Applicant: University of Central Florida Research Foundation, Inc.

    Inventor： Wasfy Mikhael ,  Raghuram Ranganathan ,  Nasser Kutkut ,  Issa Batarseh

    IPC: G01J1/20 ,  G01C21/02 ,  G05B13/02

    CPC classification number: H01L31/0522 ,  F24S50/20 ,  G01S3/7861 ,  H02S20/32 ,  Y02E10/47

    Abstract: A method for controlling a photovoltaic (PV) panel in a PV system including a computing device that provides motor control signals and implements an iterative adaptive control (IAC) algorithm for adjusting an angle of the PV panel. The IAC algorithm relates P at a current time k (P(k)), an elevation angle of the PV panel at k (θS (k)), P after a next step (P(k+1)) and an elevation angle of the PV panel at k+1 (θS (k+1)). The algorithm generates a perturbed power value P(k+1) to provide a power perturbation to P(k), and calculates θS (k+1) using P(k+1). The motor control signals cause the motor to position the PV panel to achieve θS (k+1). A change in P resulting from the positioning is compared to a predetermined change limit, and only if the change in P is ≧ the change limit, again sensing P, and repeating the generating, calculating and positioning.

    Abstract translation: 一种用于控制PV系统中的光伏（PV）面板的方法，包括提供电机控制信号的计算装置，并实现用于调整PV面板的角度的迭代自适应控制（IAC）算法。 IAC算法将P在当前时间k（P（k）），PV面板在k（θS（k））的仰角，P在下一步骤之后（P（k + 1））和P （θS（k + 1））。 该算法产生扰动功率值P（k + 1）以向P（k）提供功率扰动，并且使用P（k + 1）计算thetaS（k + 1）。 电机控制信号使电机定位PV面板以实现thetaS（k + 1）。 将定位产生的P的变化与预定的变化极限相比较，只有当P的变化> =变化极限时，再次感测P，并重复生成，计算和定位。

    COMPUTER SYSTEM PROVIDING COLLABORATIVE LEARNING FEATURES AND RELATED METHODS
    7.
    发明申请
    COMPUTER SYSTEM PROVIDING COLLABORATIVE LEARNING FEATURES AND RELATED METHODS 有权
    提供协作学习功能的计算机系统及相关方法

    公开(公告)号：US20160357721A1

    公开(公告)日：2016-12-08

    申请号：US15174196

    申请日：2016-06-06

    Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

    Inventor： Issa Batarseh ,  Ozlem Garibay

    IPC: G06F17/24 ,  G09B5/02 ,  G06F3/0483

    CPC classification number: G06F17/241 ,  G06F3/0483 ,  G06F17/218 ,  G06F17/2247 ,  G06F17/2264 ,  G09B5/02

    Abstract: A computer system may include a server(s) for storing electronic textbook data and a plurality of computing devices each including a display, a memory, a user input device, and a processor. The processor may display the electronic textbook data on the display, receive comment data from a respective user of the computing device with respect to the electronic textbook data, and provide the comment data to the server(s). The server(s) may be configured to distribute the comment data among the plurality of computing devices. The processor of each computing device may be configured to receive a respective user rating for the distributed comment data and provide the user rating to the server(s). The server(s) may be configured to permanently incorporate given distributed comment data into the electronic textbook data when the user ratings for the given distributed comment data reach a rating threshold.

    Abstract translation: 计算机系统可以包括用于存储电子教科书数据的服务器和包括显示器，存储器，用户输入设备和处理器的多个计算设备。 处理器可以在显示器上显示电子教科书数据，从相对于电子教科书数据的计算设备的相应用户接收注释数据，并将注释数据提供给服务器。 服务器可以被配置为在多个计算设备之间分发注释数据。 每个计算设备的处理器可以被配置为接收分布式注释数据的相应用户评级，并向服务器提供用户评级。 当用户评价给定的分布式注释数据达到评级阈值时，服务器可以被配置为将给定的分布式注释数据永久地并入到电子教科书数据中。

    Hybrid zero-voltage switching (ZVS) control for power inverters
    8.
    发明授权
    Hybrid zero-voltage switching (ZVS) control for power inverters 有权
    电力逆变器的混合零电压开关（ZVS）控制

    公开(公告)号：US09484840B2

    公开(公告)日：2016-11-01

    申请号：US14471961

    申请日：2014-08-28

    Applicant: University of Central Florida Research Foundation, Inc.

    Inventor： Ahmadreza Amirahmadi ,  Haibing Hu ,  Issa Batarseh

    IPC: H02M7/5383 ,  H02M7/5387 ,  H02M1/08 ,  H02M1/00

    CPC classification number: H02M7/53873 ,  H02M1/083 ,  H02M2001/0058 ,  Y02B70/1491

    Abstract: A power inverter combination includes a half-bridge power inverter including first and second semiconductor power switches receiving input power having an intermediate node therebetween providing an inductor current through an inductor. A controller includes input comparison circuitry receiving the inductor current having outputs coupled to first inputs of pulse width modulation (PWM) generation circuitry, and a predictive control block having an output coupled to second inputs of the PWM generation circuitry. The predictive control block is coupled to receive a measure of Vin and an output voltage at a grid connection point. A memory stores a current control algorithm configured for resetting a PWM period for a switching signal applied to control nodes of the first and second power switch whenever the inductor current reaches a predetermined upper limit or a predetermined lower limit.

    Abstract translation: 电力逆变器组合包括半桥功率逆变器，其包括接收输入功率的第一和第二半导体功率开关，其中间节点之间提供通过电感器的电感器电流。 控制器包括输入比较电路，其接收具有耦合到脉冲宽度调制（PWM）产生电路的第一输入的输出的电感器电流，以及具有耦合到PWM产生电路的第二输入的输出的预测控制块。 预测控制块被耦合以在电网连接点处接收Vin的测量值和输出电压。 存储器存储电流控制算法，其被配置用于仅在电感器电流达到预定上限或预定下限时复位施加到第一和第二电源开关的控制节点的开关信号的PWM周期。

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