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公开(公告)号：US09537424B2
公开(公告)日：2017-01-03
申请号：US14674910
申请日：2015-03-31
申请人： Majid Pahlevaninezhad , Suzan Eren , Praveen Jain
发明人： Majid Pahlevaninezhad , Suzan Eren , Praveen Jain
摘要： Systems, methods, and devices for controlling a DC-bus voltage for a power conditioning system. A control system regulates the DC value of the DC-bus voltage. The control system uses an adaptive DC-value estimator/observer to estimate this DC-value. Instead of having to determine the DC-value of a signal with a low frequency ripple without compromising the signal's dynamic response, a suitably precise estimate for that DC-value is used.
摘要翻译： 用于控制功率调节系统的直流母线电压的系统，方法和设备。 控制系统调节直流母线电压的直流值。 控制系统使用自适应DC值估计器/观测器来估计该DC值。 不用必须在不影响信号的动态响应的情况下确定具有低频纹波的信号的DC值，因此使用对该DC值的适当精确的估计。
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公开(公告)号：US09461553B2
公开(公告)日：2016-10-04
申请号：US14550487
申请日：2014-11-21
CPC分类号： H02J3/383 , H02M1/083 , H02M3/33507 , H02M3/33569 , H02M3/337 , H02M2001/0058 , H02M2001/007 , Y02B70/1491 , Y02E10/563
摘要： Systems, methods, and devices for use in a DC/DC converter. A circuit uses a full-bridge power semiconductor subcircuit along with a high power transformer subcircuit, a diode bridge subcircuit, and a parallel capacitor to provide galvanic isolation and boost the voltage from a power source such as a photovoltaic panel. To ensure zero voltage switching for the power semiconductors, either a passive auxiliary subcircuit or an inductor coupled in parallel to a transformer in the transformer subcircuit may be used. A controller which derives its timing signals from the transformer primary current is used to control the timing of the power semiconductors in the circuit. The circuit and its controller allows for self-adjusting regardless of load and uses the entire switching cycle to be used for power transfer.
摘要翻译： 用于DC / DC转换器的系统，方法和设备。 电路使用全桥功率半导体子电路以及高功率变压器子电路，二极管桥接电路和并联电容器来提供电流隔离并且提高来自诸如光伏面板的电源的电压。 为了确保功率半导体的零电压切换，可以使用与变压器子电路中的变压器并联的无源辅助分支电路或电感器。 使用从变压器初级电流导出其定时信号的控制器来控制电路中的功率半导体的时序。 该电路及其控制器允许在不管负载的情况下进行自调整，并将整个开关周期用于电力传输。
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公开(公告)号：US09571005B2
公开(公告)日：2017-02-14
申请号：US14590684
申请日：2015-01-06
CPC分类号： H02M7/5387 , H02M1/126 , H02M2001/0058 , H02M2007/4815 , Y02B70/1441 , Y02B70/1491
摘要： Systems and methods relating to zero voltage switching for inverters. A full bridge inverter is used in conjunction with a passive auxiliary circuit and an output filter. A control system controls the current by way of the auxiliary circuit and injects a high quality current to a power grid. The control system adjusts the duty ratio and switching frequency of the gate pulses applied to the power semiconductors in the full-bridge inverter. As well, the control system adjusts the phase shift between gate pulses for both the leading leg and lagging leg power semiconductors to control the current passing through the auxiliary circuit.
摘要翻译： 与逆变器的零电压开关相关的系统和方法。 全桥逆变器与无源辅助电路和输出滤波器结合使用。 控制系统通过辅助电路控制电流，并向电网注入高质量的电流。 控制系统调整施加到全桥逆变器中的功率半导体的栅极脉冲的占空比和开关频率。 同样，控制系统调节前腿和滞后脚功率半导体的门脉冲之间的相移，以控制通过辅助电路的电流。
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4.发明授权Method and apparatus for use with grid connected inverters in distributed power generation 有权用于分布式发电的并网逆变器的方法和装置公开(公告)号：US09570970B1
公开(公告)日：2017-02-14
申请号：US14808408
申请日：2015-07-24
申请人： Suzan Eren , Majid Pahlevaninezhad , Praveen Jain
发明人： Suzan Eren , Majid Pahlevaninezhad , Praveen Jain
IPC分类号： H02M1/08 , H02M1/12 , H02M7/5387 , H02M7/44
CPC分类号： H02M1/12 , H02M7/53873 , H02M7/539 , H02M2001/0025 , H02M2007/4815 , Y02B70/1441
摘要： Systems, methods, and devices relating to the controlling of a grid-connected inverter. A grid connected inverter is controlled by a proportional-resonant controller which tracks the grid current. To adjust for changes in grid conditions, an update block dynamically and continuously adjusts coefficients used by the controller to ensure high gains provided by the controller at the grid frequency. A harmonic compensator is also provided to ensure that high loop gains at harmonic frequencies of the grid frequency are also provided for. To also adjust for changing grid conditions, a second update block also continuously adjusts the coefficients used by the harmonic compensator.
摘要翻译： 与并网逆变器的控制相关的系统，方法和设备。 并网逆变器由跟踪电网电流的比例谐振控制器控制。 为了调整电网条件的变化，更新块动态和连续地调整控制器使用的系数，以确保控制器在电网频率下提供的高增益。 还提供谐波补偿器，以确保还提供电网频率谐波频率的高回路增益。 为了也适应于改变电网条件，第二更新块还连续调整谐波补偿器使用的系数。
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公开(公告)号：US09257864B2
公开(公告)日：2016-02-09
申请号：US13425734
申请日：2012-03-21
CPC分类号： H02J7/022 , H02M1/10 , H02M1/4225 , Y02B40/90 , Y02B70/126
摘要： A control approach of adjusting the input power of a power factor correction (PFC) stage so that the output voltage (DC-link) of the input AC/DC stage to an intermediate DC voltage (DC-Bus voltage) is adjusted based on the amount of power required to charge a high energy battery is disclosed. The present invention controls the input power of the PFC instead of the DC-bus voltage as is common in conventional methods. Therefore, a very fast response compared to the conventional sluggish voltage loop can be achieved. Also, having different DC-bus voltages for different output load conditions allows the DC/DC converter to work with an optimal duty cycle for a whole range of load variations.
摘要翻译： 调整功率因数校正（PFC）级的输入功率的控制方法，使得输入AC / DC级的输出电压（DC-link）与中间DC电压（DC-Bus电压）的调整基于 公开了对高能电池充电所需的功率量。 本发明控制PFC的输入功率而不是常规方法中常见的直流母线电压。 因此，可以实现与传统的缓慢的电压环路相比非常快的响应。 而且，对于不同的输出负载条件，具有不同的直流母线电压允许DC / DC转换器在整个负载变化范围内以最佳工作周期工作。
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公开(公告)号：US09935562B2
公开(公告)日：2018-04-03
申请号：US14845037
申请日：2015-09-03
申请人： Suzan Eren , Majid Pahlevaninezhad , Shangzhi Pan , Praveen Jain
发明人： Suzan Eren , Majid Pahlevaninezhad , Shangzhi Pan , Praveen Jain
CPC分类号： H02M7/5387 , H02M1/126 , H02M2001/0058 , H02M2001/0064 , H02M2007/4815 , Y02B70/1441 , Y02B70/1491
摘要： Systems, methods, and devices relating to a DC/AC inverter. The inverter has a full bridge converter and an output filter with an integrated magnetic subcircuit. The subcircuit has main and auxiliary inductors and is designed to steer the current ripple of the inverter's output to the power semiconductors in the full bridge converter. By doing so, zero voltage switching is achieved by the power semiconductors, thereby mitigating switching losses. At the same time the current ripple in the inverter's output is attenuated.
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公开(公告)号：US09859714B2
公开(公告)日：2018-01-02
申请号：US14743571
申请日：2015-06-18
CPC分类号： H02J3/382 , H02J1/102 , H02J3/28 , H02J3/383 , H02J3/385 , H02J3/386 , H02M7/48 , H02M2001/007 , Y02E10/563 , Y02E10/58 , Y02E10/763
摘要： Systems, methods, and devices relating to power converters. A power conditioning system uses multiple DC/DC power converter blocks. The output of each of the converter blocks is received by an energy storage and combiner block. The output of the combiner block is then received by a DC/AC inverter. The various components of the power conditioning system are controlled by a central controller. The power semiconductors within each DC/DC converter are controlled by a subsystem of the central controller and MPPT is also provided by the central controller. Also provided for are a novel three-phase DC/AC inverter topology with reduced output ripple and a control scheme for controlling the power semiconductors in the DC/AC inverter.
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公开(公告)号：US09729085B2
公开(公告)日：2017-08-08
申请号：US14838505
申请日：2015-08-28
申请人： Majid Pahlevaninezhad , Suzan Eren , Praveen Jain
发明人： Majid Pahlevaninezhad , Suzan Eren , Praveen Jain
IPC分类号： H02M7/538 , H02M7/5387 , H02M1/12 , H02M1/00
CPC分类号： H02M7/53871 , H02M1/126 , H02M2001/0009
摘要： Systems related to controlling a DC/AC converter. A control system uses a nonlinear adaptive observer to estimate the state variables inverter current and converter voltage using a sensed grid current and a bus voltage as inputs. For non-observable points (such as when the duty cycle=0.5), the required information can be found from the DC bus voltage.
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公开(公告)号：US08723487B2
公开(公告)日：2014-05-13
申请号：US13415931
申请日：2012-03-09
CPC分类号： H02M1/42 , H02M1/4225 , H02M3/1584 , Y02B70/12 , Y02B70/126
摘要： Circuits and methods relating to the provision of a reactive current to ensure zero voltage switching in a boost power factor correction converter. A simple passive circuit using a series connected inductor and capacitor are coupled between two phases of an interleaved boost PFC converter. The passive circuit takes advantage of the 180° phase-shift between the two phases to provide reactive current for zero voltage switching. A control system for adjusting and controlling the reactive current to ensure ZVS for different loads and line voltages is also provided.
摘要翻译： 与提供无功电流相关的电路和方法，以确保升压功率因数校正转换器中的零电压开关。 使用串联连接的电感器和电容器的简单无源电路耦合在交错升压PFC转换器的两相之间。 无源电路利用两相之间的180°相移来为零电压开关提供无功电流。 还提供了一种用于调节和控制无功电流以确保不同负载和线路电压的ZVS的控制系统。
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公开(公告)号：US10386396B2
公开(公告)日：2019-08-20
申请号：US14875993
申请日：2015-10-06
申请人： Suzan Eren , Majid Pahlevaninezhad , Shangzhi Pan , Praveen Jain
发明人： Suzan Eren , Majid Pahlevaninezhad , Shangzhi Pan , Praveen Jain
摘要： Systems, methods, and devices relating to the extraction of parameters for a grid voltage. A multi-block hybrid PLL or hybrid observer receives grid voltage. The grid voltage is received by a harmonic/noise decomposer block which separates the harmonic/noise component of the incoming voltage from the clean voltage signal. The clean voltage signal is then output from the PLL/observer. The clean voltage signal is also sent to an amplitude estimator block which estimates the amplitude of the clean voltage signal. The harmonic/noise component of the input voltage signal is sent, along with the clean voltage signal, to a frequency estimator block. The frequency estimator block then determines the phase angle of the incoming signal as well as the frequency of the incoming voltage signal.
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