公开(公告)号：US20170366006A1

公开(公告)日：2017-12-21

申请号：US15673520

申请日：2017-08-10

Applicant: General Electric Company

Inventor： Fengfeng Tao ,  Ahmed Elasser ,  Song Chi ,  Maja Harfman Todorovic

IPC: H02J1/10 ,  H02J9/06 ,  H02J3/38 ,  H02J7/35

CPC classification number: H02J1/102 ,  H02J3/383 ,  H02J7/35 ,  H02J9/061 ,  Y02B10/72 ,  Y02E10/563 ,  Y02E10/566

Abstract: A system and method for conditioning DC power received from hybrid DC power sources is disclosed. A power conversion circuit is coupled to a respective DC power source to selectively condition the output power generated thereby to a DC bus voltage. The power conversion circuit includes a switch arrangement and capacitors arranged to provide a charge balancing in the power conversion circuit. A controller in operable communication with the switch arrangement receives inputs on a DC bus voltage and at least one parameter related to operation of the DC power source, and determines an adjustable voltage to be output from the conversion circuit to the DC bus based on the received inputs. The controller then selectively controls operation of the switch arrangement in order to generate the determined adjustable voltage.

公开(公告)号：US09401708B2

公开(公告)日：2016-07-26

申请号：US14282343

申请日：2014-05-20

Applicant: General Electric Company

Inventor： Fengfeng Tao ,  Ahmed Elasser ,  Mohammed Agamy ,  Patrick Kirlew

IPC: H03K17/30 ,  H03K17/292 ,  H03K17/0812 ,  H03K17/081 ,  H03K17/0412 ,  H03K17/60 ,  H03K17/73

CPC classification number: H03K17/305 ,  H03K17/0412 ,  H03K17/08108 ,  H03K17/08124 ,  H03K17/292 ,  H03K17/601 ,  H03K17/73

Abstract: A gate drive unit includes a charging device, a switch, and a timing module. The charging device is conductively coupled with an electrical energy source and a power switch between the electric energy source and the charging device. The switch closes to transfer electrical energy from the energy source to the charging device. The timing module is configured to close the switch to direct the electrical energy from the electrical energy source to the charging device for a designated charging time period in order to charge the charging device with the electrical energy while the power switch is in an OFF state. The timing module opens the switch to cause the electrical energy stored in the charging device to be transferred out of the charging device in the form of a trigger current that is conducted to a gate terminal of the power switch to activate the power switch to an ON state from the OFF state.

Abstract translation: 门驱动单元包括充电装置，开关和定时模块。 充电装置与电能源和电能源与充电装置之间的电力开关导电耦合。 开关闭合，将电能从能量源传输到充电装置。 定时模块被配置为关闭开关以将电能从电能源引导到充电装置以指定的充电时间段，以便在电源开关处于关闭状态时对具有电能的充电装置充电。 定时模块打开开关，使得存储在充电装置中的电能以触发电流的形式被传送到充电装置，该触发电流被传导到电源开关的门极端子，以将电源开关激活到ON 状态从OFF状态。

公开(公告)号：US20150341028A1

公开(公告)日：2015-11-26

申请号：US14282343

申请日：2014-05-20

Applicant: General Electric Company

Inventor： Fengfeng Tao ,  Ahmed Elasser ,  Mohammed Agamy ,  Patrick Kirlew

IPC: H03K17/30 ,  H03K17/0812 ,  H03K17/292

CPC classification number: H03K17/305 ,  H03K17/0412 ,  H03K17/08108 ,  H03K17/08124 ,  H03K17/292 ,  H03K17/601 ,  H03K17/73

Abstract: A gate drive unit includes a charging device, a switch, and a timing module. The charging device is conductively coupled with an electrical energy source and a power switch between the electric energy source and the charging device. The switch closes to transfer electrical energy from the energy source to the charging device. The timing module is configured to close the switch to direct the electrical energy from the electrical energy source to the charging device for a designated charging time period in order to charge the charging device with the electrical energy while the power switch is in an OFF state. The timing module opens the switch to cause the electrical energy stored in the charging device to be transferred out of the charging device in the form of a trigger current that is conducted to a gate terminal of the power switch to activate the power switch to an ON state from the OFF state.

Abstract translation: 门驱动单元包括充电装置，开关和定时模块。 充电装置与电能源和电能源与充电装置之间的电力开关导电耦合。 开关闭合，将电能从能量源传输到充电装置。 定时模块被配置为关闭开关以将电能从电能源引导到充电装置以指定的充电时间段，以便在电源开关处于关闭状态时对具有电能的充电装置充电。 定时模块打开开关，使得存储在充电装置中的电能以触发电流的形式被传送到充电装置，该触发电流被传导到电源开关的门极端子，以将电源开关激活到ON 状态从OFF状态。

公开(公告)号：US20150330195A1

公开(公告)日：2015-11-19

申请号：US14808713

申请日：2015-07-24

Applicant: General Electric Company

Inventor： Dong Dong ,  Antonio Caiafa ,  Mohammed Agamy ,  Ahmed Elasser

IPC: E21B43/12 ,  E21B41/00 ,  H02M1/08

CPC classification number: E21B43/128 ,  E21B41/0085 ,  H02M1/08 ,  H03K17/102 ,  H03K17/6874 ,  H03K17/691 ,  H05G1/58 ,  Y10T307/406 ,  Y10T307/76

Abstract: Power systems and methods are disclosed herein. The systems and methods use a switching system coupled with a power source and subterranean pumps for pumping a resource from beneath a surface of earth. A first capacitor is between a first switching device and a first transformer, and stores electric energy received from the first transformer to activate the first switching device. A bias capacitor is between the first capacitor and the first switching device, and receives a bias voltage via a second transformer. The bias capacitor applies the bias voltage to the first switching device to prevent the first switching device from activating unless a combination of the voltage received by the first switching device via the first transformer and the bias voltage is at least as large as the activation voltage of the first switching device.

Abstract translation: 本文公开了电力系统和方法。 这些系统和方法使用与动力源和地下泵耦合的开关系统，用于从地球表面下方的一个资源抽出。 第一电容器在第一开关器件和第一变压器之间，并且存储从第一变压器接收的电能以激活第一开关器件。 偏置电容器在第一电容器和第一开关器件之间，并且经由第二变压器接收偏置电压。 偏置电容器将偏置电压施加到第一开关器件，以防止第一开关器件激活，除非由第一开关器件经由第一变压器接收的电压和偏置电压的组合至少与激活电压 第一个开关装置。

公开(公告)号：US20150311708A1

公开(公告)日：2015-10-29

申请号：US14262144

申请日：2014-04-25

Applicant: General Electric Company

Inventor： Fengfeng Tao ,  Ahmed Elasser ,  Song Chi ,  Maja Harfman Todorovic

IPC: H02J1/10 ,  H02J9/06 ,  H02J7/35

CPC classification number: H02J1/102 ,  H02J3/383 ,  H02J7/35 ,  H02J9/061 ,  Y02B10/72 ,  Y02E10/563 ,  Y02E10/566

Abstract: A system and method for conditioning DC power received from hybrid DC power sources is disclosed. A power conversion circuit is coupled to a respective DC power source to selectively condition the output power generated thereby to a DC bus voltage. The power conversion circuit includes a switch arrangement and capacitors arranged to provide a charge balancing in the power conversion circuit. A controller in operable communication with the switch arrangement receives inputs on a DC bus voltage and at least one parameter related to operation of the DC power source, and determines an adjustable voltage to be output from the conversion circuit to the DC bus based on the received inputs. The controller then selectively controls operation of the switch arrangement in order to generate the determined adjustable voltage.

Abstract translation: 公开了一种用于调节从混合直流电源接收的直流电力的系统和方法。 功率转换电路耦合到相应的直流电源，以选择地将由此产生的输出功率调节到直流母线电压。 功率转换电路包括开关装置和布置成在功率转换电路中提供电荷平衡的电容器。 与开关装置可操作地通信的控制器接收直流母线电压上的输入和与直流电源的操作有关的至少一个参数，并且基于接收到的确定从转换电路输出到直流母线的可调电压 输入。 然后，控制器选择性地控制开关装置的操作，以便产生确定的可调电压。

公开(公告)号：US09103865B2

公开(公告)日：2015-08-11

申请号：US13726730

申请日：2012-12-26

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Mohamed Agamy ,  Ahmed Elasser ,  Anthony William Galbraith ,  Maja Harfman Todorovic

IPC: G01R31/00 ,  G01R31/02 ,  H02H3/33 ,  H02H3/46 ,  H02S50/10 ,  G01R31/12 ,  H02H7/20 ,  G01R31/40

CPC classification number: G01R31/025 ,  G01R31/1272 ,  H02H3/33 ,  H02H3/46 ,  H02H7/20 ,  H02S50/00 ,  H02S50/10 ,  Y02E10/56

Abstract: Methods for determining a ground fault or insulation degradation condition within energy conversion systems are described. A method for determining a ground fault within an energy conversion system may include, in part, a comparison of baseline waveform of differential current to a waveform of differential current during operation for a plurality of DC current carrying conductors in an energy conversion system. A method for determining insulation degradation within an energy conversion system may include, in part, a comparison of baseline frequency spectra of differential current to a frequency spectra of differential current transient at start-up for a plurality of DC current carrying conductors in an energy conversion system. In one embodiment, the energy conversion system may be a photovoltaic system.

Abstract translation: 描述了在能量转换系统中确定接地故障或绝缘劣化条件的方法。 用于确定能量转换系统内的接地故障的方法可以部分地包括差分电流的基线波形与在能量转换系统中的多个直流载流导体的操作期间的差动电流的波形的比较。 用于确定能量转换系统内的绝缘劣化的方法可以部分地包括差分电流的基线频谱与在能量转换中的多个直流载流导体的起动时的差动电流瞬变的频谱的比较 系统。 在一个实施例中，能量转换系统可以是光伏系统。