WO2005002035A1 - インバータ装置における省電力効果表示装置 - Google Patents
インバータ装置における省電力効果表示装置 Download PDFInfo
- Publication number
- WO2005002035A1 WO2005002035A1 PCT/JP2003/008037 JP0308037W WO2005002035A1 WO 2005002035 A1 WO2005002035 A1 WO 2005002035A1 JP 0308037 W JP0308037 W JP 0308037W WO 2005002035 A1 WO2005002035 A1 WO 2005002035A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- saving effect
- power
- power saving
- inverter
- power consumption
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Definitions
- the present invention relates to an impeller device capable of energy-saving operation, and relates to a power-saving effect display device provided in an inverter device itself.
- Japanese Patent Application Laid-Open No. 2001-155803 discloses an ammeter and a voltage meter for a target facility in order to obtain power consumption. Equipped with a measuring device such as a meter, and an operating status data collection system to collect and process the values detected by this measuring device, and collect power consumption before installing the inverter in advance as data according to airflow.
- a measuring device such as a meter
- an operating status data collection system to collect and process the values detected by this measuring device, and collect power consumption before installing the inverter in advance as data according to airflow
- the same measurement is performed after the inverter is installed, data is collected, and the collected data is intermittently transferred to the operation status data collection system to determine the difference in power consumption before and after the inverter is installed.
- the difference between the power consumption of the existing equipment when the inverter is not used and the power consumption when the inverter is used is determined to contribute to power saving.
- a display device etc. is added separately from the target equipment and existing equipment to display the power saving effect.
- a peripheral device for power measurement and a computer for data processing, etc. are separately required in addition to the indexer device, and a data transfer means from the target facility to the computer is required.
- a data transfer means from the target facility to the computer is required.
- the data for commercial use is data that uses only previously measured data and that stores the power consumption according to the airflow.
- the change in the current value is not taken into account and appears as a large error with respect to the actual state. For example, if a 22 kW motor was used with a load of 22 kW, and if a load equivalent to 1 IkW was used for this motor, the power saving amount would be 11 k
- 11 kW inverter control should be performed for a load of W
- 11 kW inverter control is performed for a load of 22 kW.
- the error of increases there is a disadvantage that the error of increases.
- the purpose of the present invention is to provide a power-saving effect display device for an inverter device having a small error even in a case where the error occurs. Disclosure of the invention
- Power consumption calculating means for calculating power consumption based on the output voltage calculated by the output voltage calculating means from the output frequency and the bus voltage and the inverter output current; and instantaneous consumption during the inverter operation calculated by the power consumption calculating means.
- a power-saving effect generating means for obtaining an instantaneous power-saving effect during the inverter operation from the commercial operation based on the electric power and the power endurance data as compared with that during the commercial operation.
- the power saving effect generating means obtains a power saving effect integrated value.
- a power saving effect display device for an inverter device is characterized in that the power saving effect or an integrated value of the power saving effect obtained by the power saving effect generating means can be displayed.
- the power consumption is based on the voltage and the current of the output voltage calculating means and the current detecting means.
- Power consumption calculating means for calculating power; and power saving effect generating means for obtaining a power saving effect based on the power consumption.
- the power savings effect during inverter operation with respect to commercial operation is displayed from the power characteristic data when compared with commercial operation.
- the power characteristic data when compared with commercial operation is the power characteristic during general damper control and inverter operation.
- the power consumption during inverter operation calculated for each sampling period is compared to the power characteristics during general inverter operation.
- the power saving effect is calculated by multiplying the power saving ratio.
- FIG. 1 is a block diagram showing an embodiment according to the present invention
- FIG. 2 is a characteristic diagram showing an example of power characteristic data
- FIG. 3 is a characteristic diagram showing another example of power characteristic data.
- FIG. 4 is a raw diagram
- FIG. 4 is a flowchart showing the embodiment
- FIG. 5 is a characteristic diagram showing a power saving error.
- FIG. 1 shows the overall block of the present embodiment.
- an inverter main circuit 1 having a power supply side connected to a commercial power supply (not shown) and a load side connected to, for example, an induction motor (not shown), and switching of an inverter section 13 in the inverter main circuit 1 It is the same as the inverter control circuit 2 that controls the elements on and off.
- the inverter main circuit 1 is composed of a converter section 11 for converting an AC voltage to a DC voltage, a capacitor 12 for smoothing the DC voltage, a transistor as a switching element for converting the DC voltage to an AC voltage, and a diode. It is composed of an inverter unit 13.
- the inverter control circuit 2 for controlling the switching elements of the inverter unit 13 includes a microcomputer (hereinafter referred to as a CPU) 20, a nonvolatile memory 60 connected to the CPU 20, and a display 70. ing. Further, the CPU 20 has a function of storing each unit configured in advance by software and outputting PWM waveform information to the importer unit 13.
- the means stored in the CPU 20 are as follows.
- the output current detecting means 21 detects the output current of the inverter section 13 of the inverter main circuit 1, that is, the output current of each of the U-phase, V-phase, and W-phase outputs of the inverter section, and the output current detecting means 21 detects the output current. It has a two-phase current generating means 22 for converting the three-phase current into two-phase currents Id and Iq according to the phase, and detects a frequency command value inputted from outside as an analog value or a digital value.
- Frequency command value input means 3 1, Output frequency calculation means 3 to calculate output frequency from frequency command value detected by frequency command value input means 3 1 and acceleration / deceleration time 3, Output calculated by output frequency calculation means 32
- Output phase calculating means 33 for calculating a phase angle according to the processing time of the software from the frequency; Bus voltage detecting means 41 for detecting the voltage between both ends of the capacitor 12 of the main circuit 1.
- Output voltage calculating means for calculating the output voltages Vd and Vq corresponding to the output frequency calculated by the calculating means; and the phase and output voltage calculating means obtained by the output phase calculating means.
- the three-phase voltage generator 43 generates three-phase voltages to be output to the U-phase, V-phase, and W-phase, which are the outputs of the inverter, from the voltage obtained in step 42.
- the obtained three-phase voltage is compared with a triangular wave, a three-phase switching signal for turning on / off the transistor of the inverter 13 is generated, and the PWM waveform output means 44 for outputting to the inverter 13 is provided.
- power consumption calculating means 51 for obtaining power consumption from Id, Iq obtained by the two-phase current generating means 22 and Vd, Vq obtained by the output voltage calculating means 42, and inverter operation and commercial operation.
- the power-saving effect generating means 52 stores power characteristic data when the power-saving effects are compared, and obtains a power-saving effect from the power consumption obtained by the power-consumption calculating means 51.
- Display communication means 71 and memory communication means 61 for displaying on the display 70 the power saving effect obtained in this way and for storing it in the non-volatile memory 60.
- the memory communication means 61 is for reading or writing data in the nonvolatile memory 60.
- the frequency command value input means 31 uses the frequency command value information obtained from the outside in the CPU 20 to set the frequency setting value.
- the data is converted to the data format shown in FIG.
- the output frequency calculating means 32 uses the frequency set value and the acceleration / deceleration time information stored in the nonvolatile memory 60 in advance to determine the current value according to the internal state such as accelerating, constant speed, or decelerating. Calculate the output frequency.
- the output phase calculation means 33 advances the output phase in accordance with the calculation period of CPU 20 based on the output frequency.
- the bus voltage detecting means 41 always detects the bus voltage of the inverter main circuit 1, converts the detected value into a voltage data format handled by the CPU 20, and outputs the converted data. Transfer to voltage calculation means 42.
- the output voltage calculation means 42 is based on the relational expression of the output frequency Z output voltage stored in the nonvolatile memory 60 in advance, and the output voltage corresponding to the output frequency calculated by the output frequency calculation means 32 is generated by the bus. Correction according to the bus voltage obtained from the voltage detecting means 41 is performed to determine the output voltages Vd and Vq.
- the three-phase voltage obtained here is passed to the PWM waveform output means 44 and compared with the respective triangular waves.Then, the three-phase switching signal for turning on / off the transistor of the inverter 13 is sent to the inverter 13 as a three-phase switching signal. Is output.
- the three-phase output current detected by the output current detection means 21 is passed to the two-phase current generation means 22 and is converted into two-phase currents Id and Iq according to the phase. Thereafter, I d and I q are passed to the power consumption calculating means 51, and the power consumption calculating means 51 outputs the I d and I q obtained by the two-phase current generating means 22 and the output voltage calculating means 4. From V d and V q obtained in step 2, power consumption during operation of the inverter device is obtained as in the following equation (1). That is, the instantaneous power consumption P 'is as follows.
- Fig. 2 shows the characteristics of power consumption ⁇ 2 and ⁇ 1 with respect to air flow during discharge-side damper control and inverter operation in generally known commercial operation.
- Fig. 3 shows the suction side in commercial operation.
- the graph shows the characteristics of power consumption ⁇ 3 and ⁇ 1 with respect to air flow during damper control and inverter operation.
- ⁇ 4 and ⁇ 5 indicate the difference in power consumption between the damper control in commercial operation and the inverter operation with respect to the air flow, respectively.
- ⁇ 4 and ⁇ 5 are the following. Become like
- ⁇ 4 ⁇ 2— ⁇ 1 ⁇ ⁇ ⁇ (2) Difference in power consumption when compared to the suction damper during inverter operation;
- the power saving effect generation means 52 internally has the data of the difference P4 and P5 of the power consumption described above, and uses the difference P4 from the discharge side damper in the calculation to calculate the difference from the suction side damper. It is possible to select whether to use P5. Then, the power-saving effect generating means 52 obtains the value of the difference P4, P5 of the power consumption according to the output frequency of the inverter, and calculates the power-saving effect ⁇ of the following equation (4).
- the power saving effect of this equation is the power saving amount obtained by converting the difference in power consumption as a characteristic into the current inverter operation. Therefore, it is the difference in power consumption in the current inverter operation.
- the power saving effect ⁇ is accumulated at regular intervals.
- the power saving effect integrated value for obtaining the power saving amount for a certain period is calculated as ⁇ as in the following equation (5).
- FIG. 4 is a flowchart of the power saving effect according to the present embodiment.
- step 501 the instantaneous power consumption P 'is obtained by the power consumption calculating means 51, and in step 502, the power consumption ⁇ 1 of the inverter control is obtained in accordance with the current output frequency.
- step 504 it is determined whether the comparison target of the commercial operation is the discharge side or the suction side.
- step 504 the difference ⁇ is estimated, and in step 505, the power saving effect ⁇ is calculated.
- the difference ⁇ 5 is estimated for the suction side, and in step 507, the power saving effect ⁇ ⁇ is calculated. Then, in step 508, the power saving integrated value is obtained.
- the instantaneous power consumption ⁇ is estimated, ⁇ 4, ⁇ 5 is estimated from the power characteristic data, the power saving effect ⁇ is obtained, and the power saving effect integrated value ⁇ is obtained by a special measuring device.
- the operation can be performed only by the inverter control circuit without the need for the peripheral devices described above. Also, since this calculation is based on sampling in the CPU, the roughness of sampling as in the past does not matter.
- the power saving effect ⁇ ⁇ ⁇ is calculated by taking into account the actually changing power (current), it is possible to calculate an accurate value according to the load change due to external force, aging deterioration of the device, environmental change, etc. is there. .
- the power saving effect integrated value ⁇ P is accumulated in a time series inside the inverter device, a transient state during acceleration / deceleration can be accurately reflected on the integrated value.
- the power saving effect ⁇ and the power saving effect integrated value ⁇ thus obtained are displayed on the display 70 connected to the CPU 20 through the display communication means 71.
- the integrated value of the power saving effect is stored in the non-volatile memory 60 because the continuous power saving effect is observed.
- the power saving effect display on the inverter device As described above, it is possible to display the power saving effect without using a computer or other power measurement device. Since the instantaneous power consumption according to the actual operation pattern is required, there is an effect that an integrated value of the power saving effect with less error can be obtained. In addition, by providing general damper control and power characteristic data during the operation of the inverter, the power saving effect is calculated by multiplying the power consumption during the inverter operation to calculate the power saving effect accurately according to the actual load. There is an effect that it can be obtained.
- the display device 70 is provided in the inverter control circuit 2.
- the display device 70 may be provided outside the inverter control circuit 2.
- the power-saving effect display device in the jumper device according to the present invention is suitable for an inverter device that can obtain accurate power savings that are realistic and contribute to power saving.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB038218364A CN100521487C (zh) | 2003-06-25 | 2003-06-25 | 变频器装置中的省功率效果显示装置 |
US10/510,945 US7043377B2 (en) | 2003-06-25 | 2003-06-25 | Power-saving effect display device in an inverter device |
DE10393403T DE10393403T5 (de) | 2003-06-25 | 2003-06-25 | Energiespar-Effekt-Anzeigeeinheit in einem Inverter |
PCT/JP2003/008037 WO2005002035A1 (ja) | 2003-06-25 | 2003-06-25 | インバータ装置における省電力効果表示装置 |
GB0502801A GB2407389B (en) | 2003-06-25 | 2003-06-25 | Power-saving effect displaying unit in inverter |
JP2005503209A JP4450792B2 (ja) | 2003-06-25 | 2003-06-25 | インバータ装置における省電力効果表示装置 |
TW092118154A TWI227325B (en) | 2003-06-25 | 2003-07-03 | Display device of electric power saving effect using for inverter apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/008037 WO2005002035A1 (ja) | 2003-06-25 | 2003-06-25 | インバータ装置における省電力効果表示装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005002035A1 true WO2005002035A1 (ja) | 2005-01-06 |
Family
ID=33549034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/008037 WO2005002035A1 (ja) | 2003-06-25 | 2003-06-25 | インバータ装置における省電力効果表示装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7043377B2 (ja) |
JP (1) | JP4450792B2 (ja) |
CN (1) | CN100521487C (ja) |
DE (1) | DE10393403T5 (ja) |
GB (1) | GB2407389B (ja) |
TW (1) | TWI227325B (ja) |
WO (1) | WO2005002035A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009004943A1 (ja) * | 2007-07-04 | 2009-01-08 | Hitachi, Ltd. | 省エネルギー運転支援方法における省消費電力効果の算出方法、省エネルギー運転支援システム、および省消費電力効果の算出プログラム |
US8316254B2 (en) | 2009-04-24 | 2012-11-20 | Kabushiki Kaisha Toshiba | Power-saving effect apparatus and method based on power-saving parameters and power-saving amounts |
TWI423705B (zh) * | 2009-04-14 | 2014-01-11 | Qualcomm Inc | 用於行動設備顯示器電力節省的系統和方法 |
JP2014166048A (ja) * | 2013-02-26 | 2014-09-08 | Kanto Electrical Safety Inspection Association | 使用電力対比装置及び方法 |
JP2020524080A (ja) * | 2017-06-19 | 2020-08-13 | イタルプレッセ・インドゥストリエ・ソチエタ・ペル・アツィオーニItalpresse Industrie S.P.A. | エネルギ節約評価システムを備えたダイカストマシン |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITFI20060157A1 (it) * | 2006-06-22 | 2007-12-23 | Pramac S P A | Apparato di controllo delle fasi di accensione o spengimento di un gruppo elettrogeno |
US8001400B2 (en) * | 2006-12-01 | 2011-08-16 | Apple Inc. | Power consumption management for functional preservation in a battery-powered electronic device |
JP5556098B2 (ja) * | 2009-09-11 | 2014-07-23 | ソニー株式会社 | 表示方法及び表示装置 |
CN102647095A (zh) * | 2011-02-17 | 2012-08-22 | 曲阜嘉信电气有限公司 | 降低变频器直流母线电压的方法 |
TWI551874B (zh) | 2015-03-13 | 2016-10-01 | 財團法人工業技術研究院 | 用於馬達變頻器之馬達效率分析方法 |
CN106891748B (zh) * | 2015-12-18 | 2019-02-26 | 比亚迪股份有限公司 | 电动汽车及其车载充电器和车载充电器的控制方法 |
CN106891744B (zh) * | 2015-12-18 | 2019-11-08 | 比亚迪股份有限公司 | 电动汽车及其车载充电器和车载充电器的控制方法 |
JPWO2020188884A1 (ja) * | 2019-03-18 | 2021-11-18 | 東芝キヤリア株式会社 | 電動機制御装置および制御方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11206188A (ja) * | 1998-01-14 | 1999-07-30 | Ebara Corp | インバータ装置 |
JPH11235050A (ja) * | 1998-02-10 | 1999-08-27 | Fuji Electric Co Ltd | インバータ装置 |
JP2001004677A (ja) * | 1999-06-24 | 2001-01-12 | Yamabishi Denki Kk | インバータ装置節電量計測表示装置 |
JP2003006288A (ja) * | 2001-04-20 | 2003-01-10 | Hitachi Ltd | 省エネ効果表示画面配信システム及び配信方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2766407B2 (ja) * | 1991-08-20 | 1998-06-18 | 株式会社東芝 | 太陽光発電用インバータの制御装置 |
US6111767A (en) * | 1998-06-22 | 2000-08-29 | Heliotronics, Inc. | Inverter integrated instrumentation having a current-voltage curve tracer |
JP2001155083A (ja) | 1999-09-13 | 2001-06-08 | Hitachi Ltd | 省エネルギー支援方法および負荷装置の省エネルギー運転方法 |
FR2801645B1 (fr) * | 1999-11-30 | 2005-09-23 | Matsushita Electric Ind Co Ltd | Dispositif d'entrainement d'un compresseur lineaire, support et ensemble d'informations |
JP2001355577A (ja) | 2000-06-13 | 2001-12-26 | Ebara Corp | 流体機械の省エネルギー化促進方法、診断方法及び取引方法 |
JP2002112553A (ja) * | 2000-09-29 | 2002-04-12 | Canon Inc | 電力変換装置およびその制御方法、並びに、発電装置 |
-
2003
- 2003-06-25 DE DE10393403T patent/DE10393403T5/de not_active Ceased
- 2003-06-25 WO PCT/JP2003/008037 patent/WO2005002035A1/ja active Application Filing
- 2003-06-25 GB GB0502801A patent/GB2407389B/en not_active Expired - Fee Related
- 2003-06-25 CN CNB038218364A patent/CN100521487C/zh not_active Expired - Lifetime
- 2003-06-25 JP JP2005503209A patent/JP4450792B2/ja not_active Expired - Lifetime
- 2003-06-25 US US10/510,945 patent/US7043377B2/en not_active Expired - Lifetime
- 2003-07-03 TW TW092118154A patent/TWI227325B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11206188A (ja) * | 1998-01-14 | 1999-07-30 | Ebara Corp | インバータ装置 |
JPH11235050A (ja) * | 1998-02-10 | 1999-08-27 | Fuji Electric Co Ltd | インバータ装置 |
JP2001004677A (ja) * | 1999-06-24 | 2001-01-12 | Yamabishi Denki Kk | インバータ装置節電量計測表示装置 |
JP2003006288A (ja) * | 2001-04-20 | 2003-01-10 | Hitachi Ltd | 省エネ効果表示画面配信システム及び配信方法 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009004943A1 (ja) * | 2007-07-04 | 2009-01-08 | Hitachi, Ltd. | 省エネルギー運転支援方法における省消費電力効果の算出方法、省エネルギー運転支援システム、および省消費電力効果の算出プログラム |
JP2009014503A (ja) * | 2007-07-04 | 2009-01-22 | Hitachi Ltd | 省エネルギー運転支援方法における省消費電力効果の算出方法、省エネルギー運転支援システム、および省消費電力効果の算出プログラム |
TWI423705B (zh) * | 2009-04-14 | 2014-01-11 | Qualcomm Inc | 用於行動設備顯示器電力節省的系統和方法 |
US8316254B2 (en) | 2009-04-24 | 2012-11-20 | Kabushiki Kaisha Toshiba | Power-saving effect apparatus and method based on power-saving parameters and power-saving amounts |
JP2014166048A (ja) * | 2013-02-26 | 2014-09-08 | Kanto Electrical Safety Inspection Association | 使用電力対比装置及び方法 |
JP2020524080A (ja) * | 2017-06-19 | 2020-08-13 | イタルプレッセ・インドゥストリエ・ソチエタ・ペル・アツィオーニItalpresse Industrie S.P.A. | エネルギ節約評価システムを備えたダイカストマシン |
JP7144446B2 (ja) | 2017-06-19 | 2022-09-29 | イタルプレッセガウス・ソチエタ・ペル・アツィオーニ | エネルギ節約評価システムを備えたダイカストマシン |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005002035A1 (ja) | 2006-08-10 |
US7043377B2 (en) | 2006-05-09 |
JP4450792B2 (ja) | 2010-04-14 |
GB2407389A (en) | 2005-04-27 |
DE10393403T5 (de) | 2005-09-01 |
TW200408812A (en) | 2004-06-01 |
GB0502801D0 (en) | 2005-03-16 |
US20050154543A1 (en) | 2005-07-14 |
CN1682427A (zh) | 2005-10-12 |
TWI227325B (en) | 2005-02-01 |
GB2407389B (en) | 2006-09-27 |
CN100521487C (zh) | 2009-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5786571B2 (ja) | パワー半導体装置の温度測定装置 | |
WO2005002035A1 (ja) | インバータ装置における省電力効果表示装置 | |
EP2400657B1 (en) | Inverter control device for an electric compressor motor | |
JP6005393B2 (ja) | 車両用レゾルバの異常出力補償方法 | |
EP2887526B1 (en) | Method and power converter for determining cell capacitor degradation in a converter cell | |
JP2016059181A (ja) | 静電容量計算部を有するpwm整流器 | |
US8228014B2 (en) | Multi-phase DC/DC boost converter | |
JP2009258016A (ja) | 温度検出回路 | |
JP2010110936A (ja) | 電動射出成形機の電力表示方法および電力表示装置 | |
JP2013121312A (ja) | 親環境車両用パルス幅変調コンバータの電流補償方法 | |
JP2010011638A (ja) | 永久磁石同期モータ駆動装置及びそれを用いたモータ駆動用モジュール及び冷凍装置 | |
JP2004279321A (ja) | 電力測定装置、逆潮流検出装置及び系統連系発電装置 | |
US8115458B2 (en) | Driver | |
JP2007110827A (ja) | インバータ装置 | |
JP4371025B2 (ja) | 電力変換効率測定装置 | |
JP2013121306A (ja) | 空気調和機 | |
KR102177720B1 (ko) | 인버터 구동용 전류센서의 옵셋 보상 장치 및 이의 방법 | |
JP2008005673A (ja) | インバータの並列運転を行う電力変換装置及び電力変換方法 | |
JP2003114244A (ja) | 電流検出方法及び電流検出装置 | |
JP4771962B2 (ja) | 回転電機の定数測定方法 | |
WO2006050028A2 (en) | Dc current calculation for fuel cell control | |
JP6599015B2 (ja) | 電力計測装置および電力計測方法 | |
US11368115B2 (en) | Vehicle driving device and method thereof | |
KR100825158B1 (ko) | 회전 전기의 정수 측정 방법 | |
JP2004336871A (ja) | 電動機駆動装置の入力電流検出方法および制御方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2005503209 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10510945 Country of ref document: US |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN DE GB JP US |
|
ENP | Entry into the national phase |
Ref document number: 0502801 Country of ref document: GB Kind code of ref document: A Free format text: PCT FILING DATE = 20030625 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20038218364 Country of ref document: CN |
|
RET | De translation (de og part 6b) |
Ref document number: 10393403 Country of ref document: DE Date of ref document: 20050901 Kind code of ref document: P |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10393403 Country of ref document: DE |