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公开(公告)号：EP4024696A1
公开(公告)日：2022-07-06
申请号：EP22150102.6
申请日：2022-01-04
摘要： A system comprises a generator control unit (GCU) (102) configured to control a generator (104). The system includes a first sensor (106) connected to provide feedback to the GCU for generator control. The first sensor is configured to connect to sense at least one of voltage and/or current in a feeder (108) connecting between the generator and a load (110). The system also includes a second sensor (112) connected to provide feedback to the GCU for generator control. The second sensor is configured to sense at least one of voltage and/or current in a feeder connecting between the generator and the load. The first and second sensors are configured to connect to the feeder apart from one another with feeder impedance therebetween.
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公开(公告)号：EP3866319A1
公开(公告)日：2021-08-18
申请号：EP21157065.0
申请日：2021-02-15
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：EP3694089A2
公开(公告)日：2020-08-12
申请号：EP19213733.9
申请日：2019-12-05
发明人： BAX, Randall , SCHMITT, Dwight D.
摘要： A generator system can include a generator (101) configured to output an alternating current (AC) generator output, a rectifier (103) operatively connected to the generator and configured convert the AC generator output into a direct current (DC) rectifier output, and a four wire inverter (105) operatively connected to the rectifier to receive the DC rectifier output, the four wire inverter configured to convert the DC rectifier output into 3 phase AC inverter output, wherein the four wire inverter can include three output wires (107A,B,C), each output wire configured to output a respective phase of the 3 phase AC, wherein the four wire inverter can include a fourth neutral wire (107N) for providing a neutral path.
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公开(公告)号：EP3288168B1
公开(公告)日：2019-04-24
申请号：EP17187253.4
申请日：2017-08-22
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公开(公告)号：EP4044416A1
公开(公告)日：2022-08-17
申请号：EP22156066.7
申请日：2022-02-10
摘要： A system comprises a first 3-phase rectifier having a positive DC lead and a negative DC lead and a second 3-phase rectifier having a positive DC lead and a negative DC lead. The system also includes a 4-phase, 3-level inverter connected to the first and second 3-phase rectifiers. A method comprises receiving variable frequency, 3-phase power from a first generator (114), receiving variable frequency, 3-phase power from a second generator (116), rectifying the variable frequency, 3-phase power from each of the first and second generators into DC power. And inverting the DC power into 4-phase, constant frequency power for powering a load.
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公开(公告)号：EP3694071A1
公开(公告)日：2020-08-12
申请号：EP19215979.6
申请日：2019-12-13
发明人： BAX, Randall , SCHMITT, Dwight D.
摘要： A generator system (100) can include a generator (101) configured to produce an output of alternating current (AC), a rectifier (103) connected to the generator to rectify the AC into direct current (DC) rectifier output, an inverter (105) connected to the rectifier to receive the DC rectifier output and configured to output three phase AC inverter output, and a plurality of output lines (107A,B,C,N) connected to the inverter to receive the three phase AC inverter output. The system can include a control module (109) configured to control the output of the inverter. The control module can be operatively connected to one or more of the output lines via one or more local sense leads (111) to receive a local feedback. The control module can be configured to control the inverter as a function of the local feedback to provide one or more of protection, voltage regulation, or harmonic correction.
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公开(公告)号：EP3694070A1
公开(公告)日：2020-08-12
申请号：EP19214573.8
申请日：2019-12-09
发明人： BAX, Randall , SCHMITT, Dwight D.
摘要： A generator system can include a generator configured to produce an output of alternating current (AC), a rectifier connected to the generator to rectify the AC into direct current (DC) rectifier output, an inverter connected to the rectifier to receive the DC rectifier output and configured to output three phase AC inverter output, and a plurality of output lines connected to the inverter to receive the three phase AC inverter output. The system can include a control module (109) configured to control the output of the inverter (105). The control module can be operatively connected to one or more of the output lines via one or more local sense leads (111) to receive a local feedback. The control module can be configured to control the inverter as a function of the local feedback to provide one or more of protection and/or voltage regulation. The control module can be connected to one or more point of reference (POR) leads configured to be connected to a POR on a plurality of load input lines of a load to provide POR feedback to the control module. The control module can be configured to control the inverter to provide harmonic correction as a function of the POR feedback.
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8.发明公开
公开(公告)号：EP3651349A1
公开(公告)日：2020-05-13
申请号：EP19206973.0
申请日：2019-11-04
发明人： SCHMITT, Dwight D.
摘要： A method of controlling a variable speed constant frequency (VSCF) power converter is provided. The method includes receiving a determination that a sensed AC current output has exceeded a predetermined limit. The AC current output is converted from a DC voltage and has a constant frequency. The DC voltage is converted from a variable frequency AC voltage. The variable frequency AC voltage is generated in response to a mechanical energy input having a varying parameter. The method further includes decreasing the DC voltage in response to a determination that the sensed AC current output has exceeded the predetermined limit.
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公开(公告)号：EP3694089A3
公开(公告)日：2020-09-02
申请号：EP19213733.9
申请日：2019-12-05
发明人： BAX, Randall , SCHMITT, Dwight D.
摘要： A generator system can include a generator (101) configured to output an alternating current (AC) generator output, a rectifier (103) operatively connected to the generator and configured convert the AC generator output into a direct current (DC) rectifier output, and a four wire inverter (105) operatively connected to the rectifier to receive the DC rectifier output, the four wire inverter configured to convert the DC rectifier output into 3 phase AC inverter output, wherein the four wire inverter can include three output wires (107A,B,C), each output wire configured to output a respective phase of the 3 phase AC, wherein the four wire inverter can include a fourth neutral wire (107N) for providing a neutral path.
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公开(公告)号：EP3648131A1
公开(公告)日：2020-05-06
申请号：EP19206985.4
申请日：2019-11-04
摘要： A dual feeder circuit system (100) for supplying electrical power can include one or more feeder groups (101), each feeder having a first wire (103) and a second wire (105) connected between a source terminal (109) and a load terminal (111) to carry the same electrical signal on both wires. The system can include one or more current transformers (107) disposed on one or more of the feeder groups such that the current transformer is disposed around both the first wire and the second wire. The first wire can be passed directly through a first side of the current transformer to allow current to travel through the current transformer in a first direction, and the second wire can include a loop (117) and be passed through a second side of the current transformer to allow current to travel through the current transformer in an second direction opposite the first direction.
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