EP3472467A1 - Verfahren und einrichtung zur schwingungskompensation bei einem kolbenkompressor - Google Patents
Verfahren und einrichtung zur schwingungskompensation bei einem kolbenkompressorInfo
- Publication number
- EP3472467A1 EP3472467A1 EP17728204.3A EP17728204A EP3472467A1 EP 3472467 A1 EP3472467 A1 EP 3472467A1 EP 17728204 A EP17728204 A EP 17728204A EP 3472467 A1 EP3472467 A1 EP 3472467A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston compressor
- torque
- phase motor
- crankshaft
- frequency converter
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2201/00—Pump parameters
- F04B2201/02—Piston parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2201/00—Pump parameters
- F04B2201/12—Parameters of driving or driven means
- F04B2201/1202—Torque on the axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0207—Torque
Definitions
- the invention relates to a method and a device for
- the piston compressor is driven by means of crankshaft of a frequency converter controlled three-phase motor or the like. Furthermore, the invention also relates to a
- Piston compressor equipped with such a device.
- the field of application of the invention extends primarily to vehicles
- Electric motor is driven.
- the reciprocating compressor is over several
- Anti-vibration wire rope springs are mounted upright on the chassis of the vehicle to reduce vibration transmission from the piston compressor to the vehicle.
- the EP 1 242 741 A1 describes the problem of vibration excitation of reciprocating compressors by load torque M L and motor torque M M and measures to reduce vibration, the types of two-stage Kolbenkompessoren with lead to reduced vibration excitation.
- inertia masses were used between the engine and the piston compressor to counteract the vibration excitation.
- piston compressors are usually operated with three-phase motors, which is associated with a frequency converter.
- the reciprocating compressor can be controlled variable speed, in particular to realize a demand-based compressed air generation within the framework of a corresponding regulation with consideration ofenteeinschalt initiatives, Aussetz Anlagenintervallen and the like.
- auxiliary converters on rail vehicles supply not just a single electrical load, but several, such as air conditioners, traction fans, equipment fans,
- the object is achieved on the basis of a method according to the preamble of claim 1 in conjunction with its characterizing features.
- the invention includes the procedural teaching that the
- Piston compressor is determined, and based on a frequency converter based on a torque MM is the driving three-phase motor that follows the load torque ML of the reciprocating compressor, so this corresponds to the
- Torque M M of the driving motor and load torque ML is formed, can by a solution based on the solution of the invention the rule thereof
- Flywheels between engine and reciprocating compressor can be downsized or it can be completely dispensed with.
- three-phase motor is preferably a three-phase asynchronous motor or a
- Synchronous reluctance motor understood. Preferably, this corresponds to the
- Three-phase motor predetermined torque M M the load torque curve including a phase length.
- the predetermined torque of the three-phase motor corresponds to the first order of the load torque curve.
- a very simple but very effective vibration compensation method consists in just reproducing only the portion of the first order in the engine torque M M. Higher orders are neglected.
- the basis for this is the elastic bearing of the reciprocating compressor. This bearing is designed so that excitations above a certain frequency are kept away from connecting constructions. This has proved adequate in these circumstances. Higher orders are largely kept away from the elastic bearings. For that reason, it is sufficient
- the deviation of the torque MM following the torque MM for the three-phase motor load torque M L of the reciprocating compressor is set such that it is less than 30%. Within the scope of this deviation range, the torque M M of the three-phase motor only follows approximately the load torque ML of the
- Piston compressor which still results in an effective vibration compensation.
- the entire vibration behavior can be improved by up to 70% by the electronic compensation according to the invention, wherein the vibration paths of the reciprocating compressor are significantly reduced, especially at low rotational speeds.
- the torque M generated by the three-phase motor is generated by a variation of the supply voltage and / or a variation of the pulse width in the converter.
- an increase in the torque MM can be achieved by the pulse width is increased briefly.
- the pulsating load torques usually generated by the reciprocating compressor are smoothed within the compressor, so that the vibration excitation emanating therefrom is further minimized.
- torque compensation is achieved by counter-regulation of the motor current.
- the torque peak can be compensated by a corresponding control of the IGBT pulse width and thus by a motor current changed at this moment.
- a correspondingly fast control and stable intermediate circuit voltage are required for this so-called space vectoring modulation.
- an increase of the torque M M for the three-phase motor can be performed by a corresponding increase in the operating voltage in a simple manner by the frequency converter.
- Control unit can be advantageously integrated directly in the frequency converter with.
- the frequency converter itself is preferably arranged directly on the three-phase motor, in order to ensure easy connection to the three-phase current source.
- this electronic assembly may also have at least one sensor input, to this one arranged in the engine shaft or crankshaft
- Position sensor to measure the current angular position to connect.
- the nachzuregelnde depending on the speed torque requirement is stored in the logic of the implemented in the frequency converter control unit.
- FIGS. shows a block diagram representation of a piston compressor with integrated therein vibration compensation device, a graph of the torsional vibrations generated by the engine and compressor according to the prior art, a graphical representation of the engine and compressor generated torsional vibrations according to the inventive solution in a first embodiment, and a graphical representation of the speed curve at the first
- Fig. 5 is a graphical representation of the time course of the strand currents of a
- Fig. 6 is a graphical representation of the engine and compressor generated
- Fig. 7 is a graphical representation of the speed curve in the second
- Fig. 8 is a graphical representation of the time course of the phase currents of a three-phase motor as a drive according to the second embodiment.
- the reciprocating compressor 1 shows a piston compressor consisting essentially of reciprocating compressor 1 and three-phase motor 2.
- the reciprocating compressor 1 is designed as a two-stage compressor unit and here has two low-pressure cylinders 3a, 3b and a high-pressure cylinder 4.
- the compressed air is coming from the atmosphere initially precompressed in the low-pressure cylinder 3 a, 3 b and then from
- High pressure cylinder 4 brought to an even higher pressure level before this generated compressed air is supplied to the further utilization in the vehicle.
- the piston compressor 1 has for actuating the piston drive of - not shown - piston of the cylinder 3a, 3b and 4, a crankshaft 5, which is driven by the rotary current motor 2.
- the electric three-phase motor 2 is equipped with a frequency converter 6, via which the connection to a three-phase system 7 takes place.
- the frequency converter 6 is associated with an electronic control unit 8, which is structurally integrated herein.
- the electrical side receives the input side
- Control unit 8 the measurement signal of a arranged in the region of the crankshaft 5 position sensor 9, which the electronic control unit 8, the current
- FIG. 2 shows a graph of the torque curve with respect to a total revolution of 0 to 360 ° of the crankshaft of a piston compressor of the prior art.
- the average torque of the drive is about 50 Nm (dotted line).
- the load torque M L can be seen that this has a maximum of about 140 N m due to a pressure peak at about 200 ° angular position of the crankshaft.
- the illustrated profile of the load torque M L is characteristic of two-stage reciprocating compressors, as illustrated in FIG. The engine responds to the dominant pressure peak only delayed and builds the apparent
- the three-phase drive responds to this pressure peak and builds up its torque M M of the course shown.
- the area between the load torque M L and the torque M M of the engine is characterized here toned and represents a measure of the vibration excitation about the crankshaft of the reciprocating compressor. Because of the fairly large surface area of the tightened surface is to be assumed that a relatively high disadvantageous vibration excitation.
- Fig. 3 shows the torque curve of the torque M M of the engine and the load torque M L of the piston compression for a full revolution of the crankshaft as a result of the vibration compensation invention.
- Embodiment takes place, the control of the motor such that its torque M M follows the load torque M L of the reciprocating compressor. It follows that the area of the surface between the load torque M L and motor torque MM is minimal compared to the above-described embodiment of the prior art, so that a very small vibration excitation occurs. Because of the control according to the invention, the driving motor builds its torque M M synchronously and to the extent demand-controlled for the load torque M L of the reciprocating compressor to be managed. Due to only minimal nonuniformities, there is an equally minimal
- FIG. 4 illustrates a uniform course of the rotational speed n of the crankshaft over the entire revolution. This also corresponds approximately to the mean curve of the rotational speed n ⁇
- Fig. 5 shows the time course of the phase currents with respect to the three phases of the three-phase motor, which also fails as a fairly uniform respective sinusoidal curve due to the almost complete control technology vibration compensation.
- Fig. 6 illustrates with respect to the second embodiment, the torque curve of the torque M M and the load torque M L for a full revolution of Crankshaft, in contrast to the embodiment described above, only a compensation with respect to the first order of Lastmomentenverlaufs of the reciprocating compressor by the torque M M of the three-phase motor takes place. It follows that compared to the above-described prior art, a significantly lower and evenly distributed area between the curves of the curve of the engine torque M M of the engine speed and the load torque M L of the piston compressor contributes as a taut area to a vibrational excitation. The vibration compensation achieved thereby can be considered sufficient for the
- Fig. 7 shows in consequence that the speed n of the crankshaft varies only slightly by the average speed n '.
- Speed curve can thus be achieved here by the compensation of the first order of the load torque curve of the reciprocating compressor.
- FIG. 8 illustrates the time course of the phase currents of the three phases of the three-phase motor, which, in contrast to the quasi-complete invention compensation discussed above, reveals a slight nonuniformity. Nevertheless, the strand current course keeps within narrow limits, which proves the effect of the solution according to the invention according to the second embodiment.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Compressor (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016111101.5A DE102016111101A1 (de) | 2016-06-17 | 2016-06-17 | Verfahren und Einrichtung zur Schwingungskompensation bei einem Kolbenkompressor |
| PCT/EP2017/063769 WO2017215991A1 (de) | 2016-06-17 | 2017-06-07 | Verfahren und einrichtung zur schwingungskompensation bei einem kolbenkompressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3472467A1 true EP3472467A1 (de) | 2019-04-24 |
| EP3472467B1 EP3472467B1 (de) | 2022-04-20 |
Family
ID=59014645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17728204.3A Active EP3472467B1 (de) | 2016-06-17 | 2017-06-07 | Verfahren und einrichtung zur schwingungskompensation bei einem kolbenkompressor |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12071944B2 (de) |
| EP (1) | EP3472467B1 (de) |
| CN (1) | CN109477473B (de) |
| DE (1) | DE102016111101A1 (de) |
| WO (1) | WO2017215991A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11499544B2 (en) * | 2016-08-31 | 2022-11-15 | Halliburton Energy Services, Inc. | Pressure pump performance monitoring system using torque measurements |
| CN109185094B (zh) * | 2018-08-17 | 2019-07-23 | 珠海格力电器股份有限公司 | 一种控制压缩机切缸的方法、装置及机组、空调系统 |
| DE102019214578B4 (de) * | 2019-09-24 | 2021-07-22 | Vitesco Technologies GmbH | Verfahren zum Kompensieren von Druckspitzen in einem flüssigkeitsführenden System |
| CN111456933B (zh) * | 2020-05-08 | 2022-03-08 | 河海大学常州校区 | 一种汽车电子水泵空转状态检测方法 |
| KR102658401B1 (ko) | 2021-06-15 | 2024-04-17 | 엘지전자 주식회사 | 압축기의 제어 장치, 압축기 및 압축기의 제어 방법 |
| CN114577498B (zh) * | 2022-02-28 | 2024-05-14 | 北京小米移动软件有限公司 | 空调转矩补偿参数的测试方法及装置 |
| DE102022213630A1 (de) * | 2022-12-14 | 2024-06-20 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Verringerung von Druckspitzen in einem hydraulischen System und hydraulisches System |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4726738A (en) * | 1985-01-16 | 1988-02-23 | Hitachi, Ltd. | Motor-driven compressor provided with torque control device |
| JPH0433585A (ja) * | 1990-05-30 | 1992-02-04 | Sanyo Electric Co Ltd | 電動圧縮機のトルク制御装置 |
| JP2838578B2 (ja) * | 1990-06-19 | 1998-12-16 | 株式会社日立製作所 | モータ制御装置、外乱負荷トルク推定装置 |
| DE19961646C1 (de) | 1999-12-21 | 2001-11-15 | Knorr Bremse Systeme | Schwingungsarmer, zweistufiger Tauchkolbenverdichter |
| DE10058923A1 (de) | 2000-11-28 | 2002-06-13 | Knorr Bremse Systeme | Anordnung eines trockenlaufenden Kompressors an einem Fahrzeug |
| DE10058924C2 (de) * | 2000-11-28 | 2002-11-21 | Knorr Bremse Systeme | Schwingungsarmer mehrstufiger Kolbenkompressor |
| US6809486B2 (en) * | 2000-12-15 | 2004-10-26 | Stirling Technology Company | Active vibration and balance system for closed cycle thermodynamic machines |
| JP4023249B2 (ja) * | 2002-07-25 | 2007-12-19 | ダイキン工業株式会社 | 圧縮機内部状態推定装置及び空気調和装置 |
| JP4407109B2 (ja) | 2002-10-11 | 2010-02-03 | ダイキン工業株式会社 | 電動機制御方法およびその装置 |
| KR100400068B1 (en) * | 2003-02-21 | 2003-09-29 | Bong Taek Kim | Performance test equipment system of train driving device and test method thereof |
| JP4259173B2 (ja) * | 2003-04-28 | 2009-04-30 | パナソニック株式会社 | 電動圧縮機の駆動装置 |
| JP2005069123A (ja) * | 2003-08-26 | 2005-03-17 | Matsushita Electric Ind Co Ltd | 密閉型圧縮機 |
| CN1259773C (zh) * | 2004-01-18 | 2006-06-14 | 桂林星辰电力电子有限公司 | 交流伺服电机力矩扰动的补偿控制方法 |
| ATE546877T1 (de) * | 2006-05-18 | 2012-03-15 | Busch Dieter & Co Prueftech | Elektrischer antrieb sowie verfahren zum steuern eines solchen antriebs |
| JP4297953B2 (ja) * | 2007-06-22 | 2009-07-15 | 三洋電機株式会社 | モータ制御装置及び圧縮機 |
| JP4476314B2 (ja) | 2007-08-10 | 2010-06-09 | 三洋電機株式会社 | モータ制御装置及び圧縮機 |
| US20090220352A1 (en) * | 2008-02-29 | 2009-09-03 | Carstensen Peter T | Method and Device for Monitoring and Controlling a Hydraulic Actuated Process |
| US9320849B2 (en) * | 2010-09-24 | 2016-04-26 | Perqflo, Llc | Infusion pumps |
| US9856866B2 (en) * | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
| US8734120B2 (en) * | 2011-11-15 | 2014-05-27 | Vacon Oyj | Compressor starting method and apparatus |
| CN102522941B (zh) | 2011-12-21 | 2017-03-22 | 海尔集团公司 | 一种抑制压缩机低频振动的方法和系统 |
| JP5937880B2 (ja) * | 2012-04-27 | 2016-06-22 | 日立アプライアンス株式会社 | モータ制御装置及び冷蔵庫 |
| DE102013101502A1 (de) * | 2013-02-14 | 2014-08-14 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Luftversorgungsanlage mit elektronischem Umrichter |
| CN105026760A (zh) * | 2013-02-27 | 2015-11-04 | 株式会社松井制作所 | 液体供给装置 |
| DE102015006988A1 (de) * | 2015-05-29 | 2016-12-01 | Man Truck & Bus Ag | Verfahren und Regelkreis zur Regelung eines elektrischen Antriebs eines elektrisch angetriebenen Druckluftverdichters eines Kraftfahrzeugs |
-
2016
- 2016-06-17 DE DE102016111101.5A patent/DE102016111101A1/de not_active Ceased
-
2017
- 2017-06-07 WO PCT/EP2017/063769 patent/WO2017215991A1/de not_active Ceased
- 2017-06-07 CN CN201780043454.9A patent/CN109477473B/zh active Active
- 2017-06-07 EP EP17728204.3A patent/EP3472467B1/de active Active
- 2017-06-07 US US16/310,703 patent/US12071944B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017215991A1 (de) | 2017-12-21 |
| EP3472467B1 (de) | 2022-04-20 |
| DE102016111101A1 (de) | 2017-12-21 |
| CN109477473A (zh) | 2019-03-15 |
| CN109477473B (zh) | 2020-08-18 |
| US12071944B2 (en) | 2024-08-27 |
| US20190264676A1 (en) | 2019-08-29 |
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