WO2015141235A1 - Capteur de puissance, système de capteurs de puissance, et dispositif de détection de puissance régénérée - Google Patents

Capteur de puissance, système de capteurs de puissance, et dispositif de détection de puissance régénérée Download PDF

Info

Publication number
WO2015141235A1
WO2015141235A1 PCT/JP2015/001575 JP2015001575W WO2015141235A1 WO 2015141235 A1 WO2015141235 A1 WO 2015141235A1 JP 2015001575 W JP2015001575 W JP 2015001575W WO 2015141235 A1 WO2015141235 A1 WO 2015141235A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
element terminal
power sensor
target device
magnetic
Prior art date
Application number
PCT/JP2015/001575
Other languages
English (en)
Japanese (ja)
Inventor
浩章 辻本
Original Assignee
公立大学法人大阪市立大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 公立大学法人大阪市立大学 filed Critical 公立大学法人大阪市立大学
Priority to JP2016508547A priority Critical patent/JP6210606B2/ja
Publication of WO2015141235A1 publication Critical patent/WO2015141235A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B60L7/14—Dynamic electric regenerative braking for vehicles propelled by ac motors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/08—Arrangements for measuring electric power or power factor by using galvanomagnetic-effect devices, e.g. Hall-effect devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/429—Current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/205—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using magneto-resistance devices, e.g. field plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the present invention relates to a regenerative power detection device that detects generation of regenerative power and outputs a notification signal notifying that regenerative power has been generated in order to effectively use regenerative power generated by an electric motor.
  • An electric motor is widely used as a device that converts electric power into rotational motion. In particular, it is frequently used as a driving device for wheels such as automobiles and trains. When the electric motor is used as a vehicle propulsion device, electric power returns from the electric motor to the driving side when braking the vehicle body. Many methods for effectively using regenerative power when this power regeneration is performed have been proposed.
  • Patent Document 1 discloses a power regeneration system that recovers regenerative power generated by an electric motor during regenerative braking.
  • whether or not the entire system shifts to the regenerative operation is determined based on the operation of the drive operation device such as an accelerator or a brake.
  • Patent Document 2 when processing regenerative power, a capacitor is placed between wires that supply power to an inverter circuit that sends drive current to the motor, and it is determined that the regenerative operation has started when the voltage across the capacitor rises.
  • An apparatus for passing a current through a regenerative resistor in a regenerative circuit is disclosed.
  • the present invention has been conceived in view of the above problems, and directly detects the generation of regenerative power of a motor by detecting whether the power consumption of the motor is positive or negative using a wattmeter using the magnetoresistive effect.
  • a regenerative power detection device is provided.
  • the regenerative power detection device of the present invention is: A power sensor unit provided on the connection between the drive device (inverter) and the electric motor; A controller that is connected to the power sensor unit and that outputs a notification signal notifying that regenerative power has been generated when the power sensor unit indicates that power consumption in the motor has become negative. And
  • the regenerative power detection apparatus according to the present invention can be formed very thin and small because the power sensor unit uses a magnetic film. Therefore, even if it is incorporated in a relatively small drive system, the weight does not increase and the bulk does not increase.
  • the power sensor unit used in the present invention can directly measure power consumption and regenerative power. Therefore, in a system using a battery, it is useful for managing the residual power of the battery.
  • FIG. 1 shows a configuration diagram of a regenerative power detection device 10 according to the present invention.
  • the regenerative power detection device 10 includes a power sensor unit (power sensor system) 12 and a controller 14.
  • the regenerative power detection device 10 is incorporated between the electric motor 22 and the driving device 24 of the electric motor system 20 including the electric motor 22, the driving device 24, and the battery 26.
  • the controller 14 of the regenerative power detection device 10 outputs a notification signal Sa that notifies that regenerative power is generated.
  • This notification signal Sa can be used for various purposes.
  • the case where it uses as a control signal of the switch 28 provided between the drive device 24 and the regenerative electric power detection apparatus 10 is demonstrated.
  • the battery 26 is a power source in the electric motor system 20. Electric power is sent from the battery 26 to the driving device 24 through connection lines L26a and L26b.
  • the drive device 24 is an inverter device. Therefore, the inverter circuit 24a which converts direct current into three-phase alternating current and the drive controller 24b which controls the inverter circuit 24a are included.
  • 3 phase alternating current is supplied from the drive unit 24 to the motor 22.
  • the electric motor 22 is a so-called motor.
  • the switcher 28 is disposed between the driving device 24 and the electric motor 22.
  • the switcher 28 can switch between a path (L24a, L24b, L24c) from the driving device 24 toward the electric motor 22 and a path (L28a, L28b, L28c) toward which the regenerative power from the electric motor 22 is directed toward the battery 26.
  • the specific configuration of the switch 28 is not particularly limited.
  • a rectifier 30 is disposed between the switch 28 and the battery 26.
  • the rectifier 30 rectifies the regenerative power generated by the electric motor 22 into direct current. Further, when the rectified power does not reach a voltage that can charge the battery 26, a device for boosting the voltage may be included.
  • the rectifier 30 to the battery 26 are connected by wirings L30a and L30b.
  • FIG. 2 shows an enlarged view of the power sensor unit 12.
  • power sensors 40 a, 40 b and 40 c are arranged for each of the three connections L 24 a, L 24 b and L 24 c from the driving device 24.
  • Each power sensor includes magnetic elements 42a, 42b, 42c, measuring resistors 43a, 43b, 43c, amplifiers 44a, 44b, 44c, and low-pass filters 45a, 45b, 45c.
  • the power sensor unit 12 has an adder 48 that adds the outputs of the low-pass filters 45a, 45b, and 45c.
  • the magnetic elements 42a, 42b, and 42c are strip-like magnetic films.
  • the measurement resistors 43a, 43b, and 43c are resistors having a large resistance value for allowing a constant current to flow through the magnetic elements 42a, 42b, and 42c.
  • One end of each of the magnetic elements 42a, 42b, and 42c is connected to the connection lines L24a, L24b, and L24c.
  • the other end of the magnetic elements 42a, 42b, 42c and one end of the measuring resistors 43a, 43b, 43c are connected in series.
  • the other ends of the measurement resistors 43a, 43b, and 43c are grounded.
  • both ends of the magnetic elements 42a, 42b, and 42c are connected to amplifiers 44a, 44b, and 44c.
  • the outputs of the amplifiers 44a, 44b, 44c are connected to low-pass filters 45a, 45b, 45c, respectively.
  • the magnetic elements 42a, 42b, 42c are arranged so that the longitudinal direction of the strip shape matches the direction in which the current of the wiring flows. By connecting the magnetic elements 42a, 42b, 42c and the measuring resistors 43a, 43b, 43c in this way, it is possible to measure the power consumption at the load to which each wiring is connected, as will be described later (described in FIG. 4). it can.
  • Each power consumption is an output of the low-pass filters 45a, 45b, 45c.
  • the power consumption is basically expressed as the sum of the power consumption of each phase. Therefore, the output of the adder 48 becomes the power consumption of the electric motor 22.
  • the output of the adder 48 is a signal Sw.
  • the signal Sw is sent to the controller 14 (see FIG. 1).
  • the signal Sw is a result of measuring the power consumed by the electric motor 22 with a positive / negative sign.
  • FIG. 3 shows another configuration of the power sensor unit 12.
  • power is often measured by the two-watt meter method.
  • FIG. 3 shows a configuration when power is measured by the two wattmeter method.
  • Power sensors 40a and 40b are used.
  • the configuration of the power sensors 40a and 40b is the same as that in FIG. However, the other end of the measurement resistor 43a of the power sensor 40a is connected to the connection L24b, and the other end of the measurement resistor 43b of the power sensor 40b is connected to the connection L24c.
  • the power sensor 40c is not used.
  • the power sensor unit 12 may be configured with two power sensors.
  • the operation of the regenerative power detection device 10 will be described.
  • an instruction (not shown) is sent to the drive controller 24 b of the drive device 24.
  • the driving device 24 converts the DC voltage of the battery 26 into three-phase AC for driving the electric motor 22.
  • the switch 28 allows electric power to flow from the driving device 24 to the electric motor 22.
  • the electric motor 22 is driven by receiving a three-phase current from the driving device 24.
  • the power sensor unit 12 measures the power consumed by the electric motor 22 as a positive value. This is notified to the controller 14 by the signal Sw of the adder 48 shown in FIG. While the controller 14 can determine that the electric motor 22 is consuming electric power based on the signal Sw from the electric power sensor unit 12, the notification signal Sa for securing the switch 28 from the driving device 24 to the electric motor 22. Is output.
  • the power sensor unit 12 observes that negative power is consumed by the motor 22.
  • This signal is notified to the controller 14 as the signal Sw of the adder 48 shown in FIGS.
  • the controller 14 determines that the electric motor 22 has consumed negative power
  • the controller 14 transmits a notification signal Sa indicating the fact to the switch 28.
  • the controller 14 outputs the notification signal Sa notifying that the regenerative power has been generated.
  • the switch 28 switches the wiring between the driving device 24 and the electric motor 22 so that the electric motor 22 and the rectifier 30 are connected. That is, it is possible to detect that the electric motor 22 has started to perform power regeneration without using an operation on the driving device 24.
  • the electric motor 22 When the electric motor 22 starts power regeneration, it is connected to the rectifier 30 via the switch 28, so that the regenerative power from the electric motor 22 is rectified by the rectifier 30 and becomes direct current.
  • the rectifier 30 charges the battery 26. If the DC power rectified by the rectifier 30 does not become a voltage that can charge the battery 26, the voltage may be boosted.
  • the power sensor unit 12 observes that the electric motor 22 consumes positive electric power. Therefore, the signal Sw is notified to the controller 14 that the power consumption is positive (the electric motor 22 is consuming power).
  • the controller 14 determines that the electric motor 22 has consumed positive power, the controller 14 transmits a notification signal Sa indicating the fact to the switch 28. The switcher 28 switches so that the drive device 24 and the electric motors 22 are connected.
  • FIG. 4 illustrates the operating principle of the power sensor 40.
  • the power sensor 40 includes a magnetic element 42, a measurement resistor 43, and a detector 27.
  • the detector 27 detects the DC component of the voltage between the element terminal 143 and the element terminal 144.
  • the detector 27 includes an amplifier 44 and a low-pass filter 45.
  • the magnetic element 42 and the measurement resistor 43 that constitute the power sensor 40 are connected in series.
  • the load 92 connected to the power source 91 of the circuit under measurement 90 is connected in parallel.
  • the load 92 is for one phase of the electric motor 22.
  • the connection point of the power sensor 40 is the connection terminals 12a and 12b.
  • the magnetic element 42 is obtained by forming a magnetic film 142 on a substrate and patterning it with a conductor in an oblique direction. It is called a barber pole type. Element terminals 143 and 144 are provided at both ends of the magnetic element 42 and connected to the amplifier 44. That is, the magnetic element 42 has a magnetic film 142 patterned in a diagonal direction with a conductor, an element terminal 143 connected to one end of the conductor, and an element terminal 144 connected to the other end of the conductor. .
  • the amplifier 44 has a first input connected to the element terminal 143 and a second input connected to the element terminal 144, and amplifies the voltage between the element terminal 143 and the element terminal 144.
  • the input of the low-pass filter 45 is connected to the output of the amplifier 44.
  • the magnetic element 42 is disposed adjacent to and parallel to the electric wire 93 a connecting the power source 91 and the load 92.
  • “parallel” means that the in-plane direction of the magnetic element 42 is parallel to a coaxial magnetic field formed around the electric wire 93a.
  • the measurement resistor 43 is sufficiently large with respect to the resistance value R mr of the magnetic element 42.
  • the resistance of the electric wire 93a is sufficiently small.
  • a magnetic film 142 which is disposed close to the electric wire 93a of the current I 1 flows, has an electrical resistivity characteristics, such as (3).
  • I 2 (R m0 + ⁇ I 1 ) I 2 (4)
  • the voltage V mr between the element terminals 143 and 144 of the magnetic element 42 is expressed as in equation (8).
  • the relationship of R m0 ⁇ R 2 was used in the middle of the transformation of the formula (8).
  • the K 1 is a proportionality constant. From the result of the equation (8), between the element terminals 143 and 144 of the magnetic element 42, the voltage proportional to the power I 1 V 1 consumed by the load 92, the operation of the measuring resistor 43 (R 2 ), and the magnetic element 42 are obtained.
  • the electrical resistance R m0 at a point is determined, a uniquely determined sum of bias voltages can be obtained.
  • the final term shows the active power consumed by the load 92 as a direct current component. That is, the DC voltage obtained by passing the output between the element terminals 143 and 144 through the low-pass filter 45 is a voltage proportional to the active power consumed by the load 92.
  • FIG. 5 is a graph schematically showing the relationship between the AC voltage applied for driving and the current flowing through the load.
  • the horizontal axis is the phase (degrees), and the vertical axis is the amplitude (normalized).
  • ⁇ be the phase difference between the voltage and current.
  • FIG. 6 shows the relationship between the measured output of the power sensor 40 and the phase difference ⁇ in the circuit of FIG.
  • the horizontal axis is the phase difference angle (degrees)
  • the vertical axis is the output value of the power sensor 40.
  • ⁇ shows a positive value up to 90 degrees
  • the output value of the power sensor 40 becomes negative when ⁇ exceeds 90 degrees. This shows a state where the back electromotive force is generated just at the load 92.
  • the power sensor 40 outputs a negative value when a back electromotive force is generated. Therefore, when the electric motor 22 in FIG. 1 starts power regeneration, it can be detected by the sign of the power sensor 40.
  • an apparatus for detecting regenerative power for driving an electric motor has been described.
  • a power generated by a consumer using a solar panel or the like is returned between the power plant and the consumer to the power plant side.
  • the present invention can be used.
  • the regenerative power detection device according to the present invention can be widely used for driving an electric motor with an inverter.

Abstract

La présente invention concerne un capteur de puissance qui comporte un élément magnétique qui comporte une pellicule magnétique, laquelle comporte un motif dans une direction oblique au niveau d'un conducteur, une première borne d'élément, laquelle est connectée à une extrémité du conducteur, et une seconde borne d'élément, laquelle est connectée à l'autre extrémité du conducteur, et pendant la mesure, la première borne d'élément est connectée au dispositif sujet qui est le sujet de la mesure de puissance. Le capteur de puissance comporte : une résistance de mesure dont une extrémité est connectée à la seconde borne d'élément de l'élément magnétique ; et un détecteur qui détecte la composante en CC de la tension entre la première borne d'élément et la seconde borne d'élément. L'élément magnétique est disposé de telle manière que la direction de la première borne d'élément à la seconde borne d'élément pendant la mesure est approximativement parallèle au câble connecté au dispositif sujet.
PCT/JP2015/001575 2014-03-20 2015-03-20 Capteur de puissance, système de capteurs de puissance, et dispositif de détection de puissance régénérée WO2015141235A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016508547A JP6210606B2 (ja) 2014-03-20 2015-03-20 電力センサシステム、回生電力検出装置、及び電動機システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014059173 2014-03-20
JP2014-059173 2014-03-20

Publications (1)

Publication Number Publication Date
WO2015141235A1 true WO2015141235A1 (fr) 2015-09-24

Family

ID=54144215

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/001575 WO2015141235A1 (fr) 2014-03-20 2015-03-20 Capteur de puissance, système de capteurs de puissance, et dispositif de détection de puissance régénérée

Country Status (2)

Country Link
JP (1) JP6210606B2 (fr)
WO (1) WO2015141235A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017068916A (ja) * 2015-09-28 2017-04-06 公立大学法人大阪市立大学 二次電池ユニット及びそれを備える二次電池システム
WO2023061854A1 (fr) * 2021-10-11 2023-04-20 Robert Bosch Gmbh Onduleur pour une machine électrique

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01297568A (ja) * 1988-05-25 1989-11-30 Mitsubishi Cable Ind Ltd 部分放電測定方法
US6037763A (en) * 1995-03-16 2000-03-14 Horstmann Timers & Controls Limited Electricity measurement apparatus using hall effect sensor having rectified bias current
JP2004088862A (ja) * 2002-08-26 2004-03-18 Toshiba Corp 自励式電力変換装置
JP2009168586A (ja) * 2008-01-16 2009-07-30 Meidensha Corp 電力量計測装置
JP2010261909A (ja) * 2009-05-11 2010-11-18 Nippon Soken Inc 電力検知装置
JP2013205120A (ja) * 2012-03-27 2013-10-07 Osaka City Univ 電力計測装置
JP2013238434A (ja) * 2012-05-11 2013-11-28 Osaka City Univ 力率計測装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01297568A (ja) * 1988-05-25 1989-11-30 Mitsubishi Cable Ind Ltd 部分放電測定方法
US6037763A (en) * 1995-03-16 2000-03-14 Horstmann Timers & Controls Limited Electricity measurement apparatus using hall effect sensor having rectified bias current
JP2004088862A (ja) * 2002-08-26 2004-03-18 Toshiba Corp 自励式電力変換装置
JP2009168586A (ja) * 2008-01-16 2009-07-30 Meidensha Corp 電力量計測装置
JP2010261909A (ja) * 2009-05-11 2010-11-18 Nippon Soken Inc 電力検知装置
JP2013205120A (ja) * 2012-03-27 2013-10-07 Osaka City Univ 電力計測装置
JP2013238434A (ja) * 2012-05-11 2013-11-28 Osaka City Univ 力率計測装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017068916A (ja) * 2015-09-28 2017-04-06 公立大学法人大阪市立大学 二次電池ユニット及びそれを備える二次電池システム
WO2023061854A1 (fr) * 2021-10-11 2023-04-20 Robert Bosch Gmbh Onduleur pour une machine électrique

Also Published As

Publication number Publication date
JPWO2015141235A1 (ja) 2017-04-06
JP6210606B2 (ja) 2017-10-11

Similar Documents

Publication Publication Date Title
JP5699301B2 (ja) 電流センサ
JP5531213B2 (ja) 電流センサ
JP5577544B2 (ja) 電流センサ
US8465859B2 (en) Current sensor
JP5686146B2 (ja) 温度異常検知機能付き電圧計測装置及び電力変換装置
JP2009162670A (ja) レゾルバ異常検出回路
JP5979413B2 (ja) 電力計測装置
JP2009229112A (ja) 電圧検出回路
JP6210606B2 (ja) 電力センサシステム、回生電力検出装置、及び電動機システム
US10120001B2 (en) Power factor measurement device
JP2018040632A (ja) ノイズの影響を受けない電流検出回路
US20120229134A1 (en) Current detection device
JP5678287B2 (ja) 電流センサ
JP3590679B2 (ja) 浮動直流電源の異常検出装置
JP5560232B2 (ja) 電流検出装置
JP5282064B2 (ja) 突入電流抑制回路の故障検出機能を持つモータ駆動回路、モータ制御装置
JP6411540B2 (ja) 駆動制御装置およびそれを有する駆動制御システム
JP2008109836A (ja) インバータの電流測定装置
JP2006345683A (ja) 電流検出装置
CN104283474B (zh) 具有异常检测功能的旋转电机控制装置
JP5537360B2 (ja) 電気車制御装置
JP5531216B2 (ja) 電流センサ
JP2002048849A (ja) 電気自動車用バッテリシステムの電流検出方式
CN104284828B (zh) 电动助力转向装置
JP2010206859A (ja) 短絡検出装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15765360

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2016508547

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15765360

Country of ref document: EP

Kind code of ref document: A1