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公开(公告)号：US09716444B2
公开(公告)日：2017-07-25
申请号：US14933004
申请日：2015-11-05
Applicant: GE Energy Power Conversion Technology Ltd
Inventor： Robert Gregory Wagoner , Cheng Luo , Siddharth Pant
IPC: H02M7/483 , H02M7/5387 , H02M7/537 , H02M1/42
CPC classification number: H02M7/537 , H02M1/42 , H02M1/4216 , H02M7/487 , H02M7/5395 , H02M2001/327 , Y02B70/126
Abstract: Provided is a method for controlling operation of semiconductor gates in a power conversion system including one or more multilevel inverters coupleable to a modulator and a controller. The method includes generating, via the controller, a control signal responsive to an output current power factor associated with the inverters and producing a discontinuous pulse width modulation reference signal based upon the control signal and a target output power, the discontinuous pulse width modulation reference signal being indicative of shifting a phase angle between current and voltage. A gating signal is generated for output from the modulator, as a function of the reference signal and a carrier waveform. The gating signal adjusts the phase angle to prevent switching of the semiconductor gates.
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公开(公告)号：US10811882B2
公开(公告)日：2020-10-20
申请号：US15290753
申请日：2016-10-11
Applicant: GE Energy Power Conversion Technology Ltd
Inventor： Siddharth Pant , Philip EdgarCrapse Stone , Bacil Shaqqo , Rajesh Bhupathi , Shrutish Dawande
Abstract: A method, apparatus, and system to control and test a solar inverter are provided. The method commissions a solar inverter of a solar plant before it is placed into power production. The commissioning process verifies that the inverter to be tested is functioning as intended by connecting a first inverter to the inverter to be commissioned, and using the first inverter to emulate the power grid without being connected to the power grid, and circulate reactive and limited active power between the first inverter and the inverter to be commissioned.
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公开(公告)号：US10103537B2
公开(公告)日：2018-10-16
申请号：US14971208
申请日：2015-12-16
Applicant: GE Energy Power Conversion Technology Ltd
Inventor： David Everett Frye , Philip Edgar Crapse Stone , Daniel Francis Opila , Robert Gregory Wagoner , Siddharth Pant , Shrutish Dawande
Abstract: Provided is a fault isolation apparatus for an inverter configured for coupling to an external power supply. The apparatus includes a plurality of fault detection devices, each configured to (i) complete an electrical path between the inverter and the external power supply and (ii) detect a fault along its respective electrical path. The apparatus also includes a controller configured to instruct the fault detection device to complete its respective electrical path only when the path is devoid of the detected fault.
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公开(公告)号：US20180102651A1
公开(公告)日：2018-04-12
申请号：US15290753
申请日：2016-10-11
Applicant: GE Energy Power Conversion Technology Ltd
Inventor： Siddharth Pant , Philip EdgarCrapse Stone , Bacil Shaqqo , Rajesh Bhupathi , Shrutish Dawande
Abstract: A method, apparatus, and system to control and test a solar inverter are provided. The method commissions a solar inverter of a solar plant before it is placed into power production. The commissioning process verifies that the inverter to be tested is functioning as intended by connecting a first inverter to the inverter to be commissioned, and using the first inverter to emulate the power grid without being connected to the power grid, and circulate reactive and limited active power between the first inverter and the inverter to be commissioned.
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