| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Power control method, power control device and image forming apparatus | JP2011241836 | 2011-11-04 | JP2013097691A | 2013-05-20 | WAKIDE SEI |
| PROBLEM TO BE SOLVED: To perform phase control in which any failure is hardly generated by, even when the voltage waveform of an AC power source fluctuates, performing phase control corresponding to the fluctuation.SOLUTION: The power control method for performing phase control by using an AC power to be supplied from an AC power source 400 includes: generating a zero cross signal Sz showing a first level according as the absolute value of an AC voltage V is equal to or less than a predetermined value, and showing a second level according as the absolute value of the AC voltage is more than the predetermined value; detecting zero cross width as time width when the absolute value of the AC voltage V is equal to or less than a predetermined value and non-zero cross width as time width when the absolute value of the AC voltage is equal to or more than the predetermine value in the zero cross signal Sz; detecting the frequency and voltage value of the AC voltage V on the basis of the detected zero cross width and the detected non-zero cross width; and performing phase control in accordance with the detected frequency and voltage value of the AC voltage V. | ||||||
| 42 | Electrical device | JP51970194 | 1994-02-28 | JPH08510632A | 1996-11-05 | リマー，フィリップ・ジェイ |
| (57)【要約】 動力車のユニット（２４′、３５）に電力を供給するのに用いるための電気装置が開示される。 装置は、バッテリ（１）と、バッテリから電力を受取り、バッテリの電圧より高い中間電圧で高周波信号を発生するインバータ（６）とを備える。 動力車のユニットに高周波信号を分配する分配ネットワーク（７）がある。 電力を供給されるユニット（２４′、３５）の少なくともいくつかは、中間電圧をより高電圧に逓昇するために逓昇変圧器（１９−２２）を備え、そのより高い電圧はユニット（２４′、３５）により用いられる。 | ||||||
| 43 | A DISTRIBUTED HIGH-FREQUENCY AC ELECTRICAL SYSTEM FOR THE ELECTRIC VEHICLE | US15779127 | 2016-11-25 | US20180345792A1 | 2018-12-06 | Junfeng Liu; Jialei Wu; Jun Zeng; Fei Luo |
| The present invention discloses a distributed high-frequency AC electrical system for the electric vehicle. The system divides all loads of the electric vehicle into four load areas according to their spatial positions. Four high-frequency inverters and four DC input interfaces are contained in the system, with each of the four load areas being configured with one of the four high-frequency inverters, and each of the four high-frequency inverters being configured with one of the four DC input interfaces. One end of each DC input interface is connected to the DC side of the corresponding high-frequency inverter, and the other end is connected to the storage battery of the electric vehicle. Each high-frequency inverter outputs a high-frequency AC bus to supply power for the loads in the corresponding load area, and the four high-frequency inverters are in a parallel operation state through a high-frequency connection point that connects the four high-frequency AC buses. The present invention has the advantages of simplifying the electrical system structure of the electric vehicle, improving the system stability, and the like. | ||||||
| 44 | POWER CONDITIONER | US15838912 | 2017-12-12 | US20180198284A1 | 2018-07-12 | Hiroyuki Yasui |
| A power conditioner includes an inverter unit and a control unit that outputs an error signal indicating a mounting error of a first or second current sensor based on a result of detection by the first current sensor and a result of detection by the second current sensor. When output from the inverter unit is varied by a first threshold value or higher during a first predetermined time period, the control unit outputs the error signal if a detection value of the first current sensor is not varied with the variation in the output from the inverter unit during a second predetermined time period and outputs the error signal if a detection value of the second current sensor is not varied with the variation in the output from the inverter unit during the second predetermined time period. | ||||||
| 45 | Introduction Assistance Device and Method for System Device | US15576949 | 2015-05-27 | US20180159329A1 | 2018-06-07 | Efrain Eduardo TAMAYO RUIZ; Shuji KATOH; Shinya OOHARA; Shigenori INOUE; Tohru YOSHIHARA |
| Conventionally, optimum introduction assistance for devices including a FACTS device and a storage adapted to changes in impedance and a transmission capacity involved in an increase of renewable energy power supplies has not been achieved. Therefore, in order to solve the problem, the present invention provides a power system equipment introduction assistance device that calculates an introduction point of power system equipment coupled to a power system, the introduction assistance device including a calculating unit configured to calculate, on the basis of predetermined system information and information concerning the power system equipment scheduled to be introduced, a characteristic of the power system affecting the power system during the introduction of the power system equipment and calculate the introduction point of the power system equipment from a predetermined evaluation index related to the characteristic of the power system. | ||||||
| 46 | Electrical energy transmission system | US14749321 | 2015-06-24 | US09906032B2 | 2018-02-27 | Alexander Bronsthein |
| An electrical energy transmission system has a three-phase electric current power source generating a three-phase current including three currents of different phases, a three-phase current converting device which converts at least some of the currents, a single-wire electric current transmission line configured to transmit the converted currents to a consumer, and a balancing device configured to balance the electric currents in the three-phase current source and providing thereby a stable operation of the three-phase current power source. | ||||||
| 47 | HIGHLY EFFICIENT POWER SUPPLY UNIT AND METHOD FOR SUPPLYING POWER USING SAME | US15643733 | 2017-07-07 | US20170310107A1 | 2017-10-26 | Yong Soo YOUN; Keun Ho RYU |
| A more efficient power supply unit and a method for supplying power using same are disclosed. The power supply unit comprises a relay for switching alternating current power supplied from a plurality of sources; a direct current power supply for converting the switched current power to direct current power; and a controller for generating a switch signal to control the relay to switch the sources on the basis of the result for monitoring the alternating current power supplied from the sources. | ||||||
| 48 | ELECTRICAL ENERGY TRANSMISSION SYSTEM | US14749321 | 2015-06-24 | US20160380432A1 | 2016-12-29 | Alexander BRONSTHEIN |
| An electrical energy transmission system has a three-phase electric current power source generating a three-phase current including three currents of different phases, a three-phase current converting device which converts at least some of the currents, a single-wire electric current transmission line configured to transmit the converted currents to a consumer, and a balancing device configured to balance the electric currents in the three-phase current source and providing thereby a stable operation of the three-phase current power source. | ||||||
| 49 | TRANSIENT IMPEDANCE TRANSFORMER BASED ON AC VOLTAGE REGULATING ELECTRONIC SWITCH | US15113990 | 2014-01-25 | US20160359326A1 | 2016-12-08 | Chongshan SUN |
| A superposition principle of waveform based on conceptions of waveform continuity and flexible regulation of voltage proposes three concepts, respectively being flexible AC transformation, flexible power transmission and transformation and flexible voltage regulation; proposes three new technologies, respectively being a transient impedance technology, a flexible stepless voltage regulation technology and a flexible stepped voltage regulation technology; proposes three new products, being an AC voltage regulating electronic switch, a transient impedance transformer and a high-speed voltage regulating transformer; proposes six high-voltage power grid connection methods, being a power grid connection method type of a transient impedance transformer, a power grid connection method of a transient impedance step up auto transformer and the like; and proposes a new reactive compensation connection method for a reactive compensation device. | ||||||
| 50 | SYSTEMS AND METHODS FOR IMPROVED STABILITY OF POWER SYSTEMS | US14693590 | 2015-04-22 | US20160315471A1 | 2016-10-27 | Chaitanya Ashok Baone; Naresh Acharya; Nilanjan Ray Chaudhuri |
| The embodiments described herein provide for a system including a processor. The processor is configured to select at least one grid system contingency from a plurality of grid system contingencies. The processor is further configured to derive one or more eigen-sensitivity values based on the at least on grid system contingency. The processor is also configured to derive one or more control actions at least partially based on the eigen-sensitivity values. The processor is additionally configured to apply the one or more control actions for generation re-dispatch of a grid system. | ||||||
| 51 | SYSTEM AND METHOD FOR INCORPORATING DISTRIBUTED ENERGY GENERATION IN LEGACY ELECTRICITY GENERATION AND DISTRIBUTION SYSTEMS | US14979475 | 2015-12-27 | US20160197476A1 | 2016-07-07 | Neal George Stewart |
| In the present legacy electrical power generation and distribution system, the power quality delivered to end consumers is being degraded by a number of disruptive technologies and legislative impacts; especially with the rapidly increasing myriad of privately owned and operated domestic and commercial distributed energy generation (DEG) devices connected at any point across a low voltage (LV) distribution network. The present invention bypasses this increasing critical DEG problem by offering a solution comprising an energy processing unit (EPU) that is installed at the edge of the high voltage (HV) transmission grid. | ||||||
| 52 | POWER SUPPLY | US14898169 | 2014-06-04 | US20160141872A1 | 2016-05-19 | Stig Alnøe LINDEMANN |
| A power supply and a method for operating the power supply in which a transformer connected to an excitation circuit . . . is adapted to be connected to a power source, which secondary winding is connected to at least one first power supply. From prior art. switch mode power supply based on fly back technology is well known. Here a power supply with a power inlet is provided with a plurality of separated power outlets. One of the lines connected to the primary winding is further connected to a discharge control circuit, which discharge control circuit is further connected to at least one second power supply and the primary winding is further connected to a discharge circuit where at least one further power supply is connected. | ||||||
| 53 | POWER MANAGEMENT CIRCUIT AND A METHOD FOR OPERATING A POWER MANAGEMENT CIRCUIT | US14210096 | 2014-03-13 | US20150263520A1 | 2015-09-17 | Mukesh Balachandran Nair |
| A power management circuit and a method for operating a power management circuit are described. In one embodiment, a power management circuit includes power switching modules. Power is supplied to each of the power switching modules by at least one of multiple power sources. Each of the power switching modules includes a latch circuit configured to have a definite state at power-up of a corresponding power source and a logic circuit configured to control power supplied from the corresponding power source in response to the definite state of the latch circuit, where the logic circuit includes a cross-coupled circuit. Other embodiments are also described. | ||||||
| 54 | Method and device for adjusting a load current as a function of an internal resistance | US14315750 | 2014-06-26 | US20150002104A1 | 2015-01-01 | Winfried Moell |
| The invention relates to a method and a device for adjusting a load current during operation of a load which is connected to a supply line of a power supply system via load connections. An internal resistance of the power supply system effective on the load connections is determined and used for adjusting the load current. The basic idea of the present invention is based on the determination and monitoring of the internal resistance of the supplying power grid so as to early recognize potential risks and to initiate appropriate measures. From the determined internal resistance value, a statement can be made with regard to the quality of the power supply system, such as a building installation, from the main power distribution to the supply line in the supplying cable outlet to the load connections. | ||||||
| 55 | POWER CONTROL METHOD, POWER CONTROL DEVICE, AND IMAGE FORMING APPARATUS | US13667596 | 2012-11-02 | US20130114969A1 | 2013-05-09 | Hitoshi WAKIDE |
| A power control method for performing phase control is provided. The method includes generating a zero-crossing signal that indicates a first level if an absolute value of AC voltage is smaller than a predetermined value, and indicates a second level if the absolute value of the AC voltage is larger than the predetermined value; detecting a zero-crossing width and a non-zero-crossing width, the zero-crossing width being a time width for a case where the absolute value of the AC voltage is smaller than the predetermined value, the non-zero-crossing width being a time width for a case where the absolute value is larger than the predetermined value; detecting a frequency and a voltage value of the AC voltage based on the zero-crossing width and the non-zero-crossing width; and performing phase control depending on the frequency and the voltage value. | ||||||
| 56 | Constant current class 3 lighting system | US11384765 | 2006-03-20 | US07436675B2 | 2008-10-14 | Philip John Rimmer; Carole Frances Sherrington |
| A flexible cable is provided for a lighting system having a power supply that includes a power supply input to receive a first signal having a first frequency and a circuit for converting the first signal to a second signal, and at least one luminaire coupled to a lamp driver. The cable comprises a first leg of wires for carrying the second signal. The first wire electrically connects a loop output of the power supply to an input of the lamp driver and a second wire electrically connects an output of the lamp driver to a loop return of the power supply. The cable further comprises a second leg of wires electrically connected to a ground of the power supply and the ground of the lamp driver. The second signal has a substantially constant current and a second frequency distinctly higher than the first frequency. The flexible cable further comprises a modular connector. | ||||||
| 57 | Constant current class 3 lighting system | US11384765 | 2006-03-20 | US20070024211A1 | 2007-02-01 | Philip Rimmer; Carole Sherrington |
| A flexible cable is provided for a lighting system having a power supply that includes a power supply input to receive a first signal having a first frequency and a circuit for converting the first signal to a second signal, and at least one luminaire coupled to a lamp driver. The cable comprises a first leg of wires for carrying the second signal. The first wire electrically connects a loop output of the power supply to an input of the lamp driver and a second wire electrically connects an output of the lamp driver to a loop return of the power supply. The cable further comprises a second leg of wires electrically connected to a ground of the power supply and the ground of the lamp driver. The second signal has a substantially constant current and a second frequency distinctly higher than the first frequency. The flexible cable further comprises a modular connector. | ||||||
| 58 | Multi-range constant current source | US32953663 | 1963-12-10 | US3267355A | 1966-08-16 | DRANETZ ABRAHAM I |
| 59 | Single-phase distributing method and system | US55224322 | 1922-04-13 | US1561319A | 1925-11-10 | FORTESCUE CHARLES LE G |
| 60 | 정전류-정전압 방식을 이용한 배터리 급속 충전 방법 | KR1020120135343 | 2012-11-27 | KR101367161B1 | 2014-02-27 | 노세호; 장만길; 김종호 |
| A device for rapidly charging a battery using a constant current-constant voltage method comprise a charging power control unit, a central processing unit, a voltage detection unit, and a current detection unit. A method thereof comprises a virtual overvoltage charging step for setting an overvoltage larger than a normal charging completion voltage and performing charging based on the virtual overvoltage when an output terminal voltage of a battery reaches the normal charging completion voltage during charging with a constant current; and a normal charging step for finishing the overvoltage charging and performing normal charging based on the normal charging completion voltage when a charging current satisfies an overvoltage charging completion condition during charging with the overvoltage. The overvoltage charging step comprises a step for stopping the charging for one second when the output terminal voltage reaches the normal charging completion voltage and measuring an OCV; a step for calculating a drop voltage as a difference between the OCV and the output terminal voltage; a step for calculating an internal resistance estimated value by dividing the drop voltage by a current charging current; a step for setting a lower value among a drop voltage compensation value where a predetermined discount rate is applied to the drop voltage, and a preset terminal voltage limit value, as a virtual overvoltage; a step of performing charging with a constant current using the virtual overvoltage and the charging current; and a step for performing charging with a constant voltage until the charging current drops to a preset target current when the output terminal voltage reaches the virtual overvoltage. Therefore, the time for charging a battery can be reduced. [Reference numerals] (AA,DD,EE) No; (BB,CC,FF) Yes; (GG) End; (S300) Charge an overvoltage; (S310) Stop charging for one second; (S320) Measure the battery voltage; (S330) Derive a drop voltage (dropV) and a predicted value (expIR) of an internal resist; (S340) Set a virtual overvoltage (vrV); (S350) Charge constant current; (S360) Is target voltage reached?; (S370) Charge constant voltage; (S380) Less than the lowest current?; (S390) Is the target current reached? | ||||||
QQ群二维码
意见反馈
意见反馈