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1. 发明授权

US10914776B2 Method for detecting an error in a generator unit 有权
公开(公告)号：US10914776B2
公开(公告)日：2021-02-09
申请号：US16073727
申请日：2016-11-22
申请人： Robert Bosch GmbH
发明人： Manuel Mueller , Sebastian Paulus , Zoltan Ersek
IPC分类号： G01R31/00 , G01R31/34 , B60L3/00 , G01R31/42 , H02P29/024 , B60L3/12 , G01R31/50 , H02P9/00 , H02P101/45 , H02P103/20 , H02P9/48
摘要： The invention relates to a method for detecting an error in a generator unit which has an electric machine (100) with a rotor winding (110), a stator winding (120), and a rectifier (130) connected thereto, via which the electric machine (100) is connected to an onboard electrical system (150) of a motor vehicle, wherein a voltage of the onboard electrical system (150) is controlled to a target value via an excitation current (IE) through the rotor winding (110) of the electric machine (100), and a curve of a phase voltage (Uy) of the stator winding (120) is monitored, wherein an error in the generator unit is inferred when a change of the phase voltage (Uy) is detected and a voltage of the onboard electrical system (150) changing within a threshold value range (S) is detected.

2. 发明授权

US10122306B2 Electric power generating system with a permanent magnet generator and combination of active and passive rectifiers 有权
公开(公告)号：US10122306B2
公开(公告)日：2018-11-06
申请号：US15453350
申请日：2017-03-08
申请人： Hamilton Sundstrand Corporation
发明人： Gregory I. Rozman , Steven J. Moss , Jacek F. Gieras
IPC分类号： H02P9/00 , H02P103/20
摘要： An electric power generating system (EPGS) may comprise a permanent magnet generator (PMG) comprising a rotor comprising a permanent magnet and a stator comprising a first armature winding configured to output a first three-phase voltage, and a second armature winding configured to output a second three-phase voltage. The EPGS may further comprise a passive rectifier configured to rectify the first three-phase voltage, an active rectifier configured to rectify the second three-phase voltage, and an active rectifier controller, wherein the active rectifier is controllable in response to a current reference received by the active rectifier controller. An EPGS may comprise a tunable notch filter configured to filter a first DC voltage and/or a DC output voltage, in accordance with various embodiments.

3. 发明授权

US11616460B1 Fuzzy finite-time optimal synchronization control method for fractional-order permanent magnet synchronous generator 有权
$Fuzzy finite-time optimal synchronization control method for fractional-order permanent magnet synchronous generator$
公开(公告)号：US11616460B1
公开(公告)日：2023-03-28
申请号：US17674369
申请日：2022-02-17
申请人： GUIZHOU UNIVERSITY
发明人： Shaohua Luo , Shaobo Li , Junyang Li , Guanci Yang , Junxing Zhang
IPC分类号： H02P21/00 , H02P21/14 , H02J3/38 , H02P101/15 , H02P103/20
摘要： A fuzzy finite-time optimal synchronization control method for a fractional-order permanent magnet synchronous generator, and belongs to the technical field of generators. A synchronization model between fractional-order driving and driven permanent magnet synchronous generators with capacitance-resistance coupling is established. The dynamic analysis fully reveals that the system has rich dynamic behaviors including chaotic oscillation, and a numerical method provides stability and instability boundaries. Then, under the framework of a fractional-order backstepping control theory, a fuzzy finite-time optimal synchronous control scheme which integrates a hierarchical type-2 fuzzy neural network, a finite-time command filter and a finite-time prescribed performance function is provided.

4. 发明授权

US11601082B2 Rotary machine driving system and vehicle 有权
公开(公告)号：US11601082B2
公开(公告)日：2023-03-07
申请号：US17280422
申请日：2019-06-21
申请人： HITACHI, LTD.
发明人： Akeshi Takahashi , Shinji Sugimoto , Kazuo Nishihama
IPC分类号： H02P5/00 , H02P25/18 , H02P25/22 , H02P25/24 , H02P27/06 , H02P101/45 , H02P103/20
摘要： A rotary machine driving system includes: a rotary machine including a plurality of coils; an inverter device configured to operate the rotary machine at a variable speed, including a control device for controlling power conversion by an inverter circuit, and a coil switching device for switching a connection of the coils according to the control device. The control device commands the coil switching device to switch the connection of the coils when rotation of the rotary machine transitions between a low-speed rotation range and a high-speed rotation range due to acceleration and deceleration. A starting end and a terminal end of at least one set of coils per phase of the rotary machine are drawn out in a freely connectable state. The coil switching device includes at least one movable portion driven by one actuator.

5. 发明授权

US11585320B2 Method for controlling a multiphase separately excited synchronous generator in a wind turbine 有权
公开(公告)号：US11585320B2
公开(公告)日：2023-02-21
申请号：US16642345
申请日：2018-08-27
申请人： Wobben Properties GmbH
发明人： Roberto Rosso , Jair Cassoli , Sönke Engelken , Amgad Eldeib
IPC分类号： F03D7/00 , F03D7/02 , H02P101/15 , H02P103/20 , H02P21/22
摘要： A method for controlling a multiphase separately excited synchronous generator in a wind turbine is provided. The generator has a stator and an armature having an excitation input, connected to an excitation controller, for inputting an excitation current or an excitation voltage. The stator has a stator output, connected to a rectifier, for delivering stator currents. The rectifier is controllable to control the stator currents by detecting a speed of the armature or rotor, determining a setpoint power to be delivered by the generator or the turbine based on the speed, determining an excitation current or voltage based on the detected speed and determined setpoint power, inputting the excitation current or voltage by excitation controller at the excitation input, determining the stator currents as setpoint stator currents based on the speed and the setpoint power, and controlling the rectifier to set the stator currents to the setpoint stator currents.

6. 发明申请

US20170373561A1 A device in a heat cycle for converting heat into electrical energy 审中-公开
公开(公告)号：US20170373561A1
公开(公告)日：2017-12-28
申请号：US15544824
申请日：2016-01-14
申请人： Energihuset Försäljnings AB Hardy Hollingworth
发明人： Hardy Hollingworth
IPC分类号： H02K7/18 , H02P9/04 , F25B11/02 , F25B30/02 , H02P103/20
CPC分类号： H02K7/1892 , F01K7/00 , F01K27/00 , F25B6/02 , F25B11/02 , F25B30/02 , F25B2339/047 , F25B2400/141 , H02K7/1884 , H02P9/04 , H02P2103/20
摘要： A converting device arranged to transfer thermodynamic energy of a compressed working fluid into electrical energy. The converting unit is comprised of at least one cylinder which encloses a piston. In an embodiment, said at least one piston is provided with a magnetic portion. A ferromagnetic coil surrounds the piston and is integrated with the cylinder. As the piston moves through the coil, electrical energy is generated.

7. 发明授权

US11482360B2 Stator secondary windings to modify a permanent magnet (PM) field 有权
公开(公告)号：US11482360B2
公开(公告)日：2022-10-25
申请号：US15839702
申请日：2017-12-12
申请人： The Boeing Company
发明人： Shengyi Liu , Lijun Gao
IPC分类号： H01F7/02 , H02K1/14 , H02K19/12 , H02K21/04 , H02K21/46 , H02P9/48 , H02P25/22 , H02P29/024 , H02P103/20
摘要： Systems, methods, and apparatus for secondary windings to modify a permanent magnet (PM) field of a permanent magnet synchronous generator (PMSG) are disclosed. In one or more embodiments, a disclosed system for a PMSG comprises a permanent magnet (PM) of the PMSG to rotate and to generate a permanent magnet field. The system further comprises a plurality of stator primary windings (SPW), of the PMSG, to generate primary currents from the permanent magnet field. Further, the system comprises a plurality of stator secondary windings (SSW), of the PMSG, to draw secondary currents from a power source, and to generate a stator secondary winding magnetic field from the secondary currents. In one or more embodiments, the permanent magnet field and the stator secondary winding magnetic field together create an overall magnetic field for the PMSG.

8. 发明授权

US10784757B2 Synchronous machine with common motor/generator exciter stage 有权
公开(公告)号：US10784757B2
公开(公告)日：2020-09-22
申请号：US16168132
申请日：2018-10-23
申请人： THE BOEING COMPANY
发明人： Lijun Gao , Matthew J. Krolak , Shengyi Liu
IPC分类号： H02K19/38 , H02P9/02 , H02K3/28 , H02K11/042 , H02K19/12 , H02K19/28 , H02K11/00 , H02K15/06 , H02P103/20 , H02P31/00
摘要： A synchronous machine (100) has a frame (110), a shaft (115), a main section (120), and an exciter section (125). The main section (120) has a stator winding (130) which is mounted on the frame, and a rotor winding (135) which is mounted on the shaft. The exciter section has a transformer (140) and a rectifier (145). The transformer has a primary winding (140A) mounted on the frame and a secondary winding (140B) mounted on the shaft. The rectifier is mounted on the shaft and rectifies an output of the secondary winding to provide a rectified output to the rotor. A control unit (170) provides a high-frequency control signal to the primary winding. This signal is magnetically coupled to the secondary winding, rectified, and then applied to the rotor to control the operation of the synchronous machine.

9. 发明授权

US10725107B2 Brushless synchronous generator stator winding fault 有权
公开(公告)号：US10725107B2
公开(公告)日：2020-07-28
申请号：US15702182
申请日：2017-09-12
申请人： ROLLS-ROYCE plc
发明人： Sivakumar Nadarajan , Amit Gupta , Vaiyapuri Viswanathan , Chandana Gajanayake
IPC分类号： G01R31/34 , G06F16/28 , H02P29/024 , H02P9/10 , H02P101/25 , H02P103/20 , F02C3/04
摘要： A method of classifying a stator winding fault in a brushless synchronous generator includes measuring an electrical parameter of the stator winding and classifying the fault by calculating positive or negative sequence harmonics of the parameter and comparing one or more harmonic component to a threshold.

10. 发明授权

US10535997B2 Reactive power overexcitation regulation technology for synchronous generator 有权
公开(公告)号：US10535997B2
公开(公告)日：2020-01-14
申请号：US16469607
申请日：2018-04-23
申请人： NR Electric Co., Ltd , NR Engineering Co., Ltd
发明人： Long Wu , Weiqun Liu , Xiangjian Shi
IPC分类号： H02J3/16 , H02P9/00 , H02P9/10 , H02P103/20
摘要： A novel reactive power overexcitation regulation technology for synchronous generator, comprises measuring a stator voltage, a stator current, an active power and a reactive power of the synchronous generator; calculating the allowable upper limit value of the reactive power of the generator according to the allowable stator current of stator heating, and calculating the allowable value of the reactive power of the minimum stator current of the generator according to the contact reactance between the generator and the grid; comparing the stator current with its allowable value, calculate the excess calorific value of the stator of the generator if the calculated actual stator current is larger than its allowable value, enter reactive power overexcitation limiting regulation mode if the excess calorific value of the generator reaches the upper limit of the allowable heating margin of the generator; and using the larger value between the allowable upper limit value of the reactive power and the allowable value of the reactive power as the goal value of the reactive power regulation to maintain the output reactive power of the generator equal to the goal value. The present invention can protect the safety of the generator, and is beneficial to support the grid voltage to improve the stability of the power system performance.

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