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1.发明申请Anti-Islanding Protection in Three-Phase Converters Using Grid Synchronization Small-Signal Stability 有权使用电网同步的三相转换器中的防岛防护小信号稳定性公开(公告)号：US20140312882A1
公开(公告)日：2014-10-23
申请号：US13910371
申请日：2013-06-05
发明人： Dong Dong , Dushan Boroyevich , Paolo Mattavelli , Bo Wen
CPC分类号： H03L7/08 , G01R31/42 , H02J3/382 , H02J2003/388
摘要： A small signal feedback loop or feed-forward loop having gain provides substantially unconditional instability in a phase locked loop when a reference phase signal is lost. The small signal feedback or feed-forward also modifies phase locked loop bandwidth when the reference phase signal is lost to increase rapidity of response to loss of reference phase signal while maintaining insensitivity to reference voltage amplitude change while the reference phase signal is present. The performance thus achieved is particularly suitable for rapid condition detection response and control of a grid connected power converter under islanding conditions.
摘要翻译： 当参考相位信号丢失时，具有增益的小信号反馈回路或前馈回路在锁相环中提供基本上无条件的不稳定性。 当参考相位信号丢失时，小信号反馈或前馈也会修改锁相环带宽，以增加对参考相位信号丢失的响应速度，同时在参考相位信号存在的同时保持对参考电压幅度变化的不敏感性。 这样实现的性能特别适用于孤岛状态下并网功率转换器的快速状态检测响应和控制。
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2.发明申请I+hu 2 +l Average Current Mode (ACM) Control for Switching Power Converters 有权I + hu 2 + l开关电源转换器的平均电流模式（ACM）控制公开(公告)号：US20140292288A1
公开(公告)日：2014-10-02
申请号：US14154835
申请日：2014-01-14
发明人： Yingyi Yan , Fred C. Lee , Paolo Mattavelli
IPC分类号： H02M3/04
CPC分类号： H02M3/156 , G05F1/461 , G05F1/565 , H02M2001/0009
摘要： Providing a fast current sensor direct feedback path to a modulator for controlling switching of a switched power converter in addition to an integrating feedback path which monitors average current for control of a modulator provides fast dynamic response consistent with system stability and average current mode control. Feedback of output voltage for voltage regulation can be combined with current information in the integrating feedback path to limit bandwidth of the voltage feedback signal.
摘要翻译： 提供快速电流传感器直接反馈路径到调制器，用于控制开关功率转换器的切换，除了监视调制器的平均电流的积分反馈路径提供与系统稳定性和平均电流模式控制一致的快速动态响应。 电压调节输出电压的反馈可以与积分反馈路径中的电流信息相结合，限制电压反馈信号的带宽。
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3.发明申请公开(公告)号：US20140032148A1
公开(公告)日：2014-01-30
申请号：US13954014
申请日：2013-07-30
发明人： Jacob Verhulst , Mohamed Belkhayat , Zhiyu Shen , Marko Jaksic , Paolo Mattavelli , Dushan Boroyevich
IPC分类号： G01R27/16
摘要： A method for impedance measurement in a three-phase AC system is provided. The method includes injecting a shunt perturbation signal into the three-phase AC system and collecting a response to the shunt perturbation signal, and injecting a series perturbation signal into the three-phase AC system and collecting a response to the series perturbation signal. The response to the shunt perturbation signal and the response to the series perturbation signal are then transferred from abc coordinate to dq coordinates. At least one impedance of the three-phase AC system is calculated based on the response to the shunt perturbation signal and the response to the series perturbation signal.
摘要翻译： 提供了一种三相交流系统中的阻抗测量方法。 该方法包括将分流扰动信号注入到三相交流系统中并收集对分流扰动信号的响应，并将一系列扰动信号注入到三相交流系统中并收集对串联扰动信号的响应。 对分流扰动信号的响应和对串联扰动信号的响应然后从abc坐标传递到dq坐标。 基于对分流扰动信号的响应和对串联扰动信号的响应，计算三相AC系统的至少一个阻抗。
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公开(公告)号：US09618555B2
公开(公告)日：2017-04-11
申请号：US13953981
申请日：2013-07-30
发明人： Jacob Verhulst , Mohamed Belkhayat , Zhiyu Shen , Marko Jaksic , Paolo Mattavelli , Dushan Boroyevich
摘要： A method for impedance measurement using chirp signal injection is provided. The method includes injecting at least one chirp signal into the three-phase AC system, and collecting at least one response to the at least one chirp signal. The method further includes transferring the at least one response from abc coordinates to dq coordinates. At least one impedance is calculated based on the at least one response to the at least one chirp signal.
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5.发明申请公开(公告)号：US20140032147A1
公开(公告)日：2014-01-30
申请号：US13953981
申请日：2013-07-30
发明人： Jacob Verhulst , Mohamed Belkhayat , Zhiyu Shen , Marko Jaksic , Paolo Mattavelli , Dushan Boroyevich
摘要： A method for impedance measurement using chirp signal injection is provided. The method includes injecting at least one chirp signal into the three-phase AC system, and collecting at least one response to the at least one chirp signal. The method further includes transferring the at least one response from abc coordinates to dq coordinates. At least one impedance is calculated based on the at least one response to the at least one chirp signal.
摘要翻译： 提供了使用啁啾信号注入的阻抗测量方法。 该方法包括将至少一个线性调频脉冲信号注入到三相AC系统中，以及收集至少一个对至少一个线性调频信号的响应。 该方法还包括将来自abc坐标的至少一个响应传送到dq坐标。 基于对至少一个线性调频信号的至少一个响应来计算至少一个阻抗。
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6.发明授权公开(公告)号：US09343964B2
公开(公告)日：2016-05-17
申请号：US14154835
申请日：2014-01-14
发明人： Yingyi Yan , Fred C. Lee , Paolo Mattavelli
CPC分类号： H02M3/156 , G05F1/461 , G05F1/565 , H02M2001/0009
摘要： Providing a fast current sensor direct feedback path to a modulator for controlling switching of a switched power converter in addition to an integrating feedback path which monitors average current for control of a modulator provides fast dynamic response consistent with system stability and average current mode control. Feedback of output voltage for voltage regulation can be combined with current information in the integrating feedback path to limit bandwidth of the voltage feedback signal.
摘要翻译： 提供快速电流传感器直接反馈路径到调制器，用于控制开关功率转换器的切换，除了监视调制器的平均电流的积分反馈路径提供与系统稳定性和平均电流模式控制一致的快速动态响应。 电压调节输出电压的反馈可以与积分反馈路径中的电流信息相结合，限制电压反馈信号的带宽。
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7.发明授权Anti-islanding protection in three-phase converters using grid synchronization small-signal stability 有权防孤岛保护在三相转换器采用电网同步小信号稳定公开(公告)号：US08957666B2
公开(公告)日：2015-02-17
申请号：US13910371
申请日：2013-06-05
发明人： Dong Dong , Dushan Boroyevich , Paolo Mattavelli , Bo Wen
CPC分类号： H03L7/08 , G01R31/42 , H02J3/382 , H02J2003/388
摘要： A small signal feedback loop or feed-forward loop having gain provides substantially unconditional instability in a phase locked loop when a reference phase signal is lost. The small signal feedback or feed-forward also modifies phase locked loop bandwidth when the reference phase signal is lost to increase rapidity of response to loss of reference phase signal while maintaining insensitivity to reference voltage amplitude change while the reference phase signal is present. The performance thus achieved is particularly suitable for rapid condition detection response and control of a grid connected power converter under islanding conditions.
摘要翻译： 当参考相位信号丢失时，具有增益的小信号反馈回路或前馈回路在锁相环中提供基本上无条件的不稳定性。 当参考相位信号丢失时，小信号反馈或前馈也会修改锁相环带宽，以增加对参考相位信号丢失的响应速度，同时在参考相位信号存在的同时保持对参考电压幅度变化的不敏感性。 这样实现的性能特别适用于孤岛状态下并网功率转换器的快速状态检测响应和控制。
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8.发明申请公开(公告)号：US20140306680A1
公开(公告)日：2014-10-16
申请号：US14050435
申请日：2013-10-10
发明人： Pei-Hsin Liu , Fred C. Lee , Yingyi Yan , Paolo Mattavelli
IPC分类号： G05F1/46
CPC分类号： G05F1/468 , H02M3/156 , H02M3/157 , H02M2001/0012 , H02M2001/0025
摘要： Peak current, valley current or average current mode controlled power converters in either digital or analog implementations obtain a stabilized feedback loop and allow high system bandwidth design by use of an external ramp generator using a slope computation equation or design parameters based on fixing the quality factor of a double pole at one-half of the switching frequency at a desired value The slope of the external ramp waveform is tuned automatically with knowledge of the slope change in the waveform of inductor current of a power converter derived by differentiating a waveform in the current feedback loop. This autotuning of the external ramp generator provides immunity of quality factor change under variations of duty cycle, component values of topological change of the power converter.
摘要翻译： 数字或模拟实现中的峰值电流，谷值电流或平均电流模式控制功率转换器可获得稳定的反馈回路，并通过使用斜坡计算公式的外部斜坡发生器或基于固定品质因数的设计参数来实现高系统带宽设计 在开关频率的一半的一个双极在期望值外部斜坡波形的斜率被自动调整，知道通过区分电流中的波形导致的功率转换器的电感器电流的波形的斜率变化 反馈回路。 外部斜坡发生器的这种自动调谐在功率变换器的拓扑变化的占空比变化的变化下提供品质因数变化的抗扰度。
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公开(公告)号：US09678521B2
公开(公告)日：2017-06-13
申请号：US14050435
申请日：2013-10-10
发明人： Pei-Hsin Liu , Fred C. Lee , Yingyi Yan , Paolo Mattavelli
CPC分类号： G05F1/468 , H02M3/156 , H02M3/157 , H02M2001/0012 , H02M2001/0025
摘要： Peak current, valley current or average current mode controlled power converters in either digital or analog implementations obtain a stabilized feedback loop and allow high system bandwidth design by use of an external ramp generator using a slope computation equation or design parameters based on fixing the quality factor of a double pole at one-half of the switching frequency at a desired value The slope of the external ramp waveform is tuned automatically with knowledge of the slope change in the waveform of inductor current of a power converter derived by differentiating a waveform in the current feedback loop. This autotuning of the external ramp generator provides immunity of quality factor change under variations of duty cycle, component values of topological change of the power converter.
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公开(公告)号：US09634673B2
公开(公告)日：2017-04-25
申请号：US13968487
申请日：2013-08-16
发明人： Dong Dong , Dushan Boroyevich , Paolo Mattavelli
CPC分类号： H03L7/08 , H02J3/38 , H02J2003/388
摘要： Wobbling the operating frequency of a phase-locked loop (PLL), preferably by adding a periodic variation is feedback gain or delay in reference signal phase allows the avoidance of any non-detection zone that might occur due to exact synchronization of the phase locked loop operating frequency with a reference signal. If the change in PLL operating frequency is periodic, it can be made of adequate speed variation to accommodate and time requirement for islanding detection or the like when a reference signal being tracked by the PLL is lost. Such wobbling of the PLL operating frequency is preferably achieved by addition a periodic variable gain in a feedback loop and/or adding a periodically varying phase delay in a reference signal and/or PLL output.
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