-
公开(公告)号：US12191671B2
公开(公告)日：2025-01-07
申请号：US18541636
申请日：2023-12-15
Applicant: Optivolt Labs, Inc.
Inventor： Linda Stacey Irish , Sierra Rae King , Kevin Rodriguez
Abstract: A system for balancing and converting voltage output from photovoltaic modules includes a set of solar substrings and a power conversion circuit. The power conversion circuit includes a balancing section configured to balance voltage output from the set of solar substrings. The power conversion circuit also includes a voltage control section including: a first transformer coupled to the set of solar substrings and configured to step-up voltage from the set of solar substrings; a second transformer arranged in series to the first transformer; and an output capacitor coupled to the second transformer. The system further includes a controller configured to: drive a set of modulation signals to the balancing section and the voltage control section; alternate voltage polarities across the first transformer and the second transformer; and modify output voltage of the power conversion circuit to a target output voltage.
-
公开(公告)号：US20240364110A1
公开(公告)日：2024-10-31
申请号：US18648281
申请日：2024-04-26
Applicant: EGTRONICS Co., Ltd.
Inventor： Chan-Ho Kang , Young-Gun Hong , Ui-Soung Park , Ko Choi , Su-Kang Lee
CPC classification number: H02J3/26 , H02J7/00714 , H02J7/007182
Abstract: The present disclosure relates to a charging system, and more specifically, to a charging system which can prevent power imbalance in each phase in a system that supplies power to one of three phases. The charging system according to various embodiments of the present disclosure described above, the first to third charging terminals are always connected to the R-phase, S-phase, and T-phase of the system respectively, and the fourth to k-th charging terminals are each connected to the R-phase, S-phase, and T-phase using the first to (k−3)th relays when necessary, thereby reducing the number of relays than before. Further, the control unit controls the first to (k−3)th relay units to reduce the load amount deviation in each phase according to the load amount connected to the R-phase, S-phase, and T-phase, thereby eliminating imbalance of the load amount of each phase.
-
3.发明公开公开(公告)号：US20240332973A1
公开(公告)日：2024-10-03
申请号：US18619249
申请日：2024-03-28
Applicant: Siemens Healthineers AG
Inventor： Franz Schork , Lothar Regenfus
Abstract: A method for producing an electrical energy supply facility for electrical coupling to a multiphase electrical energy supply network. The method includes providing a multiphase inductive or capacitive load unit with a number of load terminals corresponding to a number of phases of the energy supply network, wherein each of the load terminals is electrically coupled to a respective phase of the electrical energy supply network; capturing respective electrical phase currents of the load terminals using at least one current sensor; evaluating the phase currents; establishing a residual current; and establishing the phase of the electrical energy supply network with a smallest or a largest phase current, wherein this established phase is electrically coupled to an electrical reactor, a reactance value of which is established dependent upon the residual current established.
-
4.发明公开公开(公告)号：US20240322567A1
公开(公告)日：2024-09-26
申请号：US18433375
申请日：2024-02-05
Inventor： Wenle Song , Lei Wang , Yuanyuan Wang , Guidong Zhu
Abstract: Disclosed are an electric power quality control method and device for an oil production platform, and a storage medium. The method includes: obtaining test data of electrical loads of power distribution rooms of an oil production platform, and determining electric power quality index data of each power distribution room based on the data; determining a power distribution room with an electric power quality problem based on the electric power quality index data and a preset index range; configuring a corresponding compensation scheme based on each electric power quality problem of the power distribution room with the electric power quality problem, the compensation scheme including a compensation device and a compensation capacity; and determining, based on the compensation device and capacity, functional and economic index data corresponding to each compensation device, and performing electric power quality control on the oil production platform based on the functional and economic index data.
-
5.发明公开公开(公告)号：US20240313548A1
公开(公告)日：2024-09-19
申请号：US18576850
申请日：2022-06-15
Applicant: Siemens Aktiengesellschaft
Inventor： Sebastian Schreck , Ileskhan Kalysh
CPC classification number: H02J3/48 , H02J3/26 , H02J3/381 , H02J2203/10 , H02J2300/24
Abstract: Various embodiments of the present disclosure include a method for controlling one or more exchanges of energy between a plurality of installations using a control unit, wherein each installation is connected to one or more phases A,B,C of a three-phase power grid. An example method includes using the control unit to determine, within a time range T for each of the phases A,B,C and for each of the installations, associated time-dependent powers to be exchanged by means of an optimization method by extremalizing a target function. The target function includes a phase difference:
∑
t
∈
T
g
(
❘
"\[LeftBracketingBar]"
P
t
A
-
P
t
B
❘
"\[RightBracketingBar]"
+
❘
"\[LeftBracketingBar]"
P
t
B
-
P
t
C
❘
"\[RightBracketingBar]"
+
❘
"\[LeftBracketingBar]"
P
t
C
-
P
t
A
❘
"\[RightBracketingBar]"
)
as a term, where PtA,B,C is in each case the sum of all powers to be exchanged via the respective phase A,B,C at the time t, and g≥0 is a weighting factor.-
Patent Agency Ranking
公开(公告)号：US12044751B2
公开(公告)日：2024-07-23
申请号：US17215076
申请日：2021-03-29
Applicant: SMA Solar Technology AG
Inventor： Mathias Buenemann , Matthias Groene
CPC classification number: G01R31/67 , H02J13/00002 , G01R19/2513 , G01R31/69 , H02J3/00 , H02J3/26 , H02J13/00004 , H02J13/00006 , Y02E40/50 , Y04S10/50
Abstract: A method for identifying an assignment of phase lines of an electrical distribution grid to connections of an electrical device capable of unbalanced-load operation, wherein the device is connected to a plurality of phase lines of the electrical distribution grid, includes setting target parameters assigned to an unbalanced load profile at each of the connections of the electrical device, detecting a temporal profile of a measurement parameter on each of the plurality of phase lines using a detection circuit, comparing the detected temporal profiles of the measurement parameters with the target parameters of the unbalanced load profile for each of the plurality of phase lines, respectively, and identifying the assignment of the phase lines to the connections on the basis of the comparison.
-
7.发明公开公开(公告)号：US20240072542A1
公开(公告)日：2024-02-29
申请号：US18237177
申请日：2023-08-23
Applicant: OVH
Inventor： Christophe Maurice THIBAUT , Miroslaw Piotr KLABA
IPC: H02J3/26
CPC classification number: H02J3/26 , H02J2310/16 , H02J2310/52
Abstract: System and method for distributing electric power from a multi-phasic power source to electronic devices, the electric power being carried by a plurality of phases. The method comprises distributing, via a plurality of multi-way switching devices, electric power from the power source to a plurality of electronic devices, each multi-way switching device corresponding to a given electronic device and being configured to distribute a present phase thereto, accessing information about power consumption of the electronic devices, determining, based on said information, a present degree of electrical imbalance of the power source, and in response to the present degree of electrical imbalance being greater than a threshold, executing a load balancing routine including determining an adjusted phase to be distributed to at least one of the electronic devices and causing the at least one multi-way switching device to switch to an adjusted switching state.
-
8.发明授权公开(公告)号：US11855459B2
公开(公告)日：2023-12-26
申请号：US17473150
申请日：2021-09-13
Applicant: SMA Solar Technology AG
Inventor： Alexander Unru , Moritz Welker , Neidhardt Bechtel , Sybille Pape
IPC: H02M7/5387 , H02J3/26
CPC classification number: H02J3/26 , H02M7/53875
Abstract: A method for three-phase infeed of electrical power from a DC source into a three-phase AC grid by means of an inverter includes measuring phase-specific grid voltages of the three-phase AC grid, and determining a grid frequency from the measured phase-specific grid voltages. The method also includes generating phase-specific voltage reference values from the phase-specifically measured grid voltages and the determined grid frequency, and generating phase-specific target current values using phase-specific predetermined target current amplitude values, the phase-specific voltage reference values and respective grid voltage amplitudes.
-
9.发明授权公开(公告)号：US11728656B2
公开(公告)日：2023-08-15
申请号：US17484615
申请日：2021-09-24
Applicant: Optivolt Labs, Inc.
Inventor： Linda Irish
CPC classification number: H02J3/381 , G01R19/16538 , G05F1/67 , H02J3/26 , H02J7/0016 , H02S40/34 , H02S40/36 , H02J2300/26
Abstract: A system for balancing voltages in solar substrings in a first solar panel includes an inductive balancer circuit. The inductive balancer circuit includes a first power level pair and a second power level pair each coupled to the solar substring, and including: a pair of switches arranged in series; a pair of capacitors arranged in series and connected in parallel to the first pair of switches; and an inductor arranged between the first pair of switches and the first pair of capacitors. The system further includes a controller coupled to the inductive balancer circuit and configured to: oscillate states of the pair of switches at a duty cycle; balance voltages across the first power level pair and the second power level pair; and generate a total voltage output that is a multiple of a nominal operating voltage of a most-illuminated solar substring.
-
公开(公告)号：US20230048126A1
公开(公告)日：2023-02-16
申请号：US17791964
申请日：2020-01-09
Applicant: Siemens Energy Global GmbH & Co. KG
Inventor： Sanad Al-Areqi , Adnan Chaudhry , Stefan Hammer , Volker Hussennether
Abstract: A method controls a converter assembly which has a line-commutated converter. The line-commutated converter has an alternating voltage terminal which can be connected via a phase conductor to an alternating voltage network. The converter assembly further has a switch module branch which is arranged serially in the phase conductor and which contains a series circuit of switch modules at each of the terminals of which bipolar voltages can be generated which add up to a branch voltage. A connection voltage to a connection point between the switch module branch and the converter is controlled by adjusting an amplitude of a positive sequence component of the branch voltage. The converter assembly is configured to carry out a control method for controlling the converter assembly.
-
-
-
-
-
-
-
-
-
Search Results
321
records
(took 0.031 seconds)
