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公开(公告)号：US20210257901A1
公开(公告)日：2021-08-19
申请号：US16791593
申请日：2020-02-14
摘要： A method of operating a power conversion system including converting variable frequency AC voltage to constant frequency AC voltage by a power converter, setting a first peak current reset threshold above operating currents previously observed during steady state short circuit current regulation in by a controller of the power converter, setting a second peak current reset threshold at a current lower than the previously observed steady state short-circuit regulation point observed during previous operation during steady state short circuit current regulation by the controllers of the power converter, resetting inverter converter AC output regulating voltage to 0 volts, and ramping AC output regulating voltage back up into steady-state operation when the second a peak current reset threshold is exceeded.
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公开(公告)号：US09236812B2
公开(公告)日：2016-01-12
申请号：US14148967
申请日：2014-01-07
CPC分类号： H02M7/2173 , H02M1/10 , H02M3/285 , H02M7/06 , H02M7/21 , H02M7/217 , H02M7/2176 , H02M7/219 , H02M2001/0074 , H02M2001/0083
摘要： A universal AC to DC converter may be configured to convert alternating current (AC) to direct current (DC), such as for use in aerospace applications. The disclosure relates to a single universal power electronic converter capable of converting an AC input voltage, such as a line to neutral input voltage of either 115 Vrms or 230 Vrms nominal to 28 V DC.
摘要翻译： 通用AC-DC转换器可以被配置为将交流（AC）转换为直流（DC），例如用于航空航天应用。 本公开涉及一种单通用电力电子转换器，其能够将AC输入电压（例如115Vrms或230Vrms）的线路输入电压转换为28V DC。
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3.发明申请公开(公告)号：US20200251981A1
公开(公告)日：2020-08-06
申请号：US16268225
申请日：2019-02-05
IPC分类号： H02M1/32 , H02M7/5395 , H02M1/088
摘要： A converter implementing a dual-reference three-level pulse width modulation (PWM) technique for constraining a midpoint duty cycle is provided. The converter includes a phase leg that includes upper, mid-upper, mid-lower, and lower switches. The upper, mid-upper, mid-lower, and lower switches are connected in series between direct current (DC) positive and negative leads, with an alternating current (AC) output lead connected at a junction of the mid-upper and mid-lower switches. The phase leg includes a first clamping diode connected to the junction of the switch and mid-upper switches and connected to a DC midpoint lead and a second clamping diode connected between the DC midpoint lead and connected to the junction of the mid-lower and lower switches. The converter is electrically coupled to and operatively associated with a controller to receive control signals to drive the converter to constrain the midpoint duty cycle between the DC midpoint and AC output leads.
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公开(公告)号：US20180054150A1
公开(公告)日：2018-02-22
申请号：US15243010
申请日：2016-08-22
IPC分类号： H02P27/06
摘要： A system and method for controlling a DC midpoint terminal voltage of a three level inverter is provided. The method includes receiving an input power signal at a three level motor controller system that includes a three level inverter, measuring, using a current sensor in the three level motor controller system, a DC current of the input power signal before the input power signal is provided to the three level inverter, and adjusting a zero-sequence inverter output voltage to adjust a midpoint voltage at the DC midpoint based on the measured DC current.
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5.发明申请ELECTROMAGNETIC INTERFERENCE (EMI) REDUCTION IN INTERLEAVED POWER CONVERTER 审中-公开交流电源转换器中的电磁干扰（EMI）减小公开(公告)号：US20140268948A1
公开(公告)日：2014-09-18
申请号：US13836241
申请日：2013-03-15
CPC分类号： H02M7/493 , H02M3/1584 , H03K7/08
摘要： A power converter system includes an interleaved power converter having a plurality of parallel-connected phase legs between DC terminals and an AC terminal. A plurality of parallel-connected inductors are each connected to one of the plurality of parallel-connected phase legs to provide a summed output of the parallel-connected phase legs to the AC terminal. A controller generates PWM signals used to control the state of each of the plurality of phase legs by comparing a carrier signal to a reference signal, wherein a period of the carrier signal is randomly varied from a nominal period.
摘要翻译： 功率转换器系统包括具有在DC端子和AC端子之间的多个并联连接的相位支路的交错功率转换器。 多个并联电感器各自连接到多个并联连接的相位支路中的一个，以提供并联连接的相支路到AC端子的相加输出。 控制器通过将载波信号与参考信号进行比较来产生用于控制多个相位分支中的每一个的状态的PWM信号，其中载波信号的周期从标称周期随机变化。
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公开(公告)号：US11588396B2
公开(公告)日：2023-02-21
申请号：US16791593
申请日：2020-02-14
摘要： A method of operating a power conversion system including converting variable frequency AC voltage to constant frequency AC voltage by a power converter, setting a first peak current reset threshold above operating currents previously observed during steady state short circuit current regulation in by a controller of the power converter, setting a second peak current reset threshold at a current lower than the previously observed steady state short-circuit regulation point observed during previous operation during steady state short circuit current regulation by the controllers of the power converter, resetting inverter converter AC output regulating voltage to 0 volts, and ramping AC output regulating voltage back up into steady-state operation when the second a peak current reset threshold is exceeded.
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公开(公告)号：US20150280595A1
公开(公告)日：2015-10-01
申请号：US14231802
申请日：2014-04-01
发明人： Adam Michael White
CPC分类号： H02P1/30 , H02M1/32 , H02M5/297 , H02M2001/325 , H02P23/18 , H02P2207/01
摘要： A power conversion system includes a power source, a matrix converter, and a controller. The power source is configured to produce an input power. The matrix converter is configured to convert the input power to output power and includes a plurality of normally-on switches and a plurality of normally-off switches. The controller is configured to control the plurality of normally-on switches and the plurality of normally-off switches to control the output power. The plurality of normally-on switches provide the input power directly as the output power when the controller is inactive.
摘要翻译： 电力转换系统包括电源，矩阵转换器和控制器。 电源被配置为产生输入功率。 矩阵转换器被配置为将输入功率转换为输出功率，并且包括多个常开开关和多个正常关闭开关。 控制器被配置为控制多个常开开关和多个常开开关以控制输出功率。 当控制器不活动时，多个常开开关将输入功率直接提供为输出功率。
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8.发明申请公开(公告)号：US20140268967A1
公开(公告)日：2014-09-18
申请号：US13836662
申请日：2013-03-15
IPC分类号： H02M7/538
摘要： A multi-level power converter system includes a multi-level power converter configured to synthesize at least three direct current (DC) voltages into an alternating current (AC) output voltage, and includes a plurality of transistors. A controller generates pulse-width modulation (PWM) signals used to control a state of the plurality of transistors of the multi-level converter by comparing first and second carrier signals to a reference signals, wherein a period of the first and second carrier signals is randomly varied from a nominal period.
摘要翻译： 多级功率转换器系统包括被配置为将至少三个直流（DC）电压合成为交流（AC）输出电压的多电平功率转换器，并且包括多个晶体管。 控制器通过将第一和第二载波信号与参考信号进行比较来产生用于控制多电平转换器的多个晶体管的状态的脉冲宽度调制（PWM）信号，其中第一和第二载波信号的周期是 从名义期间随机变化。
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公开(公告)号：US10658919B1
公开(公告)日：2020-05-19
申请号：US16283874
申请日：2019-02-25
摘要： Embodiments of the invention provide for a system, method, and controller for operating a harmonic regulator with loop delay compensation. Some embodiments include receiving, at a controller, voltage feedback from a power system, and applying a harmonic regulator to each distortion frequency to be compensated. Embodiments also include applying a predetermined delay to an output of the harmonic regulator, scaling the delayed output and adding it to a power source voltage reference waveform, and providing condition power to a load, using the conditioned power source voltage reference waveform.
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公开(公告)号：US10075119B2
公开(公告)日：2018-09-11
申请号：US15243010
申请日：2016-08-22
摘要： A system and method for controlling a DC midpoint terminal voltage of a three level inverter is provided. The method includes receiving an input power signal at a three level motor controller system that includes a three level inverter, measuring, using a current sensor in the three level motor controller system, a DC current of the input power signal before the input power signal is provided to the three level inverter, and adjusting a zero-sequence inverter output voltage to adjust a midpoint voltage at the DC midpoint based on the measured DC current.
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