EP2268407B1 - Hochspannungsenergieversorgung für einen elektrostatischen abscheider - Google Patents

Hochspannungsenergieversorgung für einen elektrostatischen abscheider Download PDF

Info

Publication number
EP2268407B1
EP2268407B1 EP09702191.9A EP09702191A EP2268407B1 EP 2268407 B1 EP2268407 B1 EP 2268407B1 EP 09702191 A EP09702191 A EP 09702191A EP 2268407 B1 EP2268407 B1 EP 2268407B1
Authority
EP
European Patent Office
Prior art keywords
switching device
high voltage
voltage
bus
power supplies
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.)
Not-in-force
Application number
EP09702191.9A
Other languages
English (en)
French (fr)
Other versions
EP2268407A2 (de
Inventor
Christian Andersson
Victor Reyes
Claus Taarning
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FLSmidth AS
Original Assignee
FLSmidth AS
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 FLSmidth AS filed Critical FLSmidth AS
Publication of EP2268407A2 publication Critical patent/EP2268407A2/de
Application granted granted Critical
Publication of EP2268407B1 publication Critical patent/EP2268407B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/66—Applications of electricity supply techniques
    • B03C3/68—Control systems therefor

Definitions

  • This invention relates to a high voltage (HV) power supply system energizing a number of fields of an electrostatic precipitator (ESP), said system comprising individual DC power supplies for each field fed from a common HV DC-bus built with a three-phase HV transformer-rectifier (T-R); wherein said individual power supplies are able to deliver a variable DC-voltage by means of a HV switching device built with power semiconductors with turn-off capabilities.
  • HV high voltage
  • ESP electrostatic precipitator
  • Electrostatic precipitators are used for collection and removal of particulate from a gas stream in industrial processes.
  • concentration of particles in the gas stream can be reduced significantly by charging the particles, via the discharge electrodes of the electrostatic precipitator, generating negative charge carriers to become attached to the particles in the gas stream, and by applying a high electrical field so that the charged particles are forced towards the positive anode of the ESP, the so-called collecting plates, thereby removing the charged particles from the gas stream.
  • the collected particles form a dust layer on the collecting plates, which is removed periodically by means of mechanical rapping devices.
  • the ESP's have been traditionally energized by single-phase transformer-rectifiers (TR sets).
  • TR sets transformer-rectifiers
  • the performance of an electrostatic precipitator can be impaired when treating low resistivity and fine dust particles because a high current is needed and often this is impossible to reach.
  • the reason is that a correspondingly high voltage has to be applied to the particular ESP field and because of the capacitive nature of an ESP field a high voltage ripple is generated.
  • This high peak voltage causes sparking inside the ESP field limiting the current below the value that is desired. Therefore it is an advantage in such cases to apply a smooth DC-voltage where the difference between the peak and the mean value is only few kilovolts. This is not possible to obtain with traditional TR-sets.
  • Back-corona means that positive ions are generated by the breakdown of the dust layer, which neutralizes the beneficial negative ions generated by the discharge electrodes, which are used for charging the dust particles negatively.
  • the result is a decreased voltage applied to the electrostatic precipitator and re-entrainment of the dust particles back to the gas stream due to small eruptions on the dust layer.
  • HV switch mode power supplies are independent units energizing each field of the ESP.
  • the three-phase mains voltage is rectified and filtered and then converted to an AC voltage by a bridge inverter operating at low voltage level (500-600 VDC) and high switching frequency (25-50 kHz).
  • This AC voltage is then raised to the required high level by a transformer and then rectified by a bridge rectifier and applied to an ESP field.
  • EP 0 268 934 B1 describes a pulse system with a pulse transformer with a primary and secondary winding, a power source connected to a storage capacitor and a thyristor with reverse diode connected to the primary winding of the transformer.
  • a second voltage source supplies a base voltage to an electrostatic precipitator field coupled to the secondary winding of the transformer by means of a coupling capacitor.
  • WO 2006 045311 also describes a pulse system where the switching device and the storage capacitors have exchanged place and the switching device is an IGBT.
  • All the described power supplies are independent units including their own HV transformer-rectifier and are energized from an industrial AC line. This is the usual solution employed in energizing each field of present precipitators.
  • the SMPS units are effective in coping with low resistivity dusts, but its complexity results in an increased price and reduced reliability.
  • the HV transformer working at high voltage and switching frequency can be often a problem. Because the size of these units is small due to the high operating frequency, the losses may cause temperature problems in the HV components submerged in transformer oil. These problems also limit the attainable rated current and voltage of these units.
  • the present invention is based on a common HV DC-bus comprising a reliable and proven three-phase rectifier having the current capacity of energizing 3-4 ESP fields.
  • This solution is economically attractive because the price of such a transformer-rectifier (TR) does not increase proportionally with the rated current (i.e. a 2000 mA TR-unit does not cost twice as much a 1000 mA unit).
  • This object is achieved by the combination of features in accordance with claim 1, i.e. when the individual power supplies do not include HV transformers as the DC voltage to be applied to an ESP field is taken from the common DC-bus.
  • HV switching device By regulating this constant voltage by means of a HV switching device, it is rendered possible to apply a smooth DC voltage to the ESP fields or a more pulsating voltage if this is required by the high resistivity of the treated dust particles.
  • the switching device could be made of any appropriate power semiconductor capable of being turned off, e.g. IGBT's, MOSFET's, etc.
  • the common DC-bus comprises a three-phase transformer with a primary and a secondary winding, where the primary winding of the transformer is connected to the mains voltage and the secondary winding is connected to a three-phase bridge rectifier; finally the output voltage passes a LC-filter, where the capacitor acts as an energy reservoir for the individual power supplies.
  • Series inductances are connected in series with the primary side in order to limit the in-rush current and improve the power factor and thus reducing the current harmonics.
  • the common DC-bus thus provides steady negative voltages in the range of 60-110 kV, depending on the rated voltage of the power supply selected. The selection depends on the plant process, the electrode configuration, etc.
  • the individual power supply for each electrical field of the ESP consists of a power semiconductor based switch in series with an inductance for limiting the current when the switch is closed. When the switch is opened an alternative current path is needed and this is provided by a HV diode connected between the switch and ground.
  • the mean voltage delivered to the individual ESP fields is controlled by varying the duty cycle of the switch, i.e. the so-called ON and OFF-time.
  • the switch is operated at a high frequency in the range of for example 15-50 kHz.
  • the mean output current is automatically controlled by a PI-controller included in the control unit.
  • the current feedback signal is delivered by an optical based current transducer.
  • the voltage applied to the ESP field is measured by a voltage divider and this kV-signal is also used by a spark detector which is necessary for detecting the break-down of the gas normally occurring in ESP's.
  • the switching device is arranged to be turned off as soon as the spark detector detects the occurrence of a spark.
  • the so-called ESP current commutates to the HV diode and the switching device is not subjected to any surge current.
  • the switching device is only exposed to a voltage equal to the voltage of the common DC-bus.
  • each individual power supply further comprises a firing circuit for the switching device.
  • the firing pulses are transferred from the control unit via infrared light.
  • This link in practice is made using a PC board with infrared (IR) light emitting diodes (LED's) placed close to the modules comprising the switching device.
  • IR infrared
  • LED's light emitting diodes
  • the system according to the invention comprises a snubber circuit connected in parallel to the switching device and the anti-parallel rectifier device.
  • the reason is the stray inductance of the cable connection between the switch and the HVDC-bus.
  • the snubber circuit limits the rate of rise of the voltage across the switching device (dv/dt) when it is turned off; hereby, a protection of the switching device is provided.
  • the reservoir capacitor can be fully or partially moved into the individual power supplies. It can be advantageous in some case where there is a long distance between the individual units and the common three-phase HV transformer-rectifier. Thus, possible overvoltages are avoided and a commercial standard three-phase HV transformer-rectifier can be utilized.
  • FIG. 1 is a block diagram of the pulse system according to the invention. Shown is a common HVDC power supply 1, hereinafter referred to as DC-bus, and individual DC power supplies 8, arranged to energize an electrostatic precipitator 12.
  • the DC-bus 1 is fed from an industrial three-phase mains 7 and comprises a HV transformer 3, a diode bridge 4, a series inductance 5 and a reservoir capacitor 6.
  • the output voltage Udc is negative because negative corona is normally used in electrostatic precipitators.
  • Linear chokes 2 are connected in series with the primary of the HV transformer 3 for limiting the inrush-current when voltage is applied for first time to the common DC-bus and for limiting the surge current in case of short-circuits.
  • 3 precipitator fields A, B, C
  • they can be more or less, depending on the particular application.
  • the reference number 8 denotes one of the individual DC power supply energizing one ESP field according to the invention.
  • This power supply consists basically of a semiconductor switching device 9 comprising a number of power semiconductors in series, where its collector terminal is connected via a series inductance 11 to the corresponding ESP field. From the connection point of the collector terminal of the switching device 9 to the series inductance 11 is connected the anode of a HV diode 10 comprising a number of Si diodes in series. This HV diode 10 works as an alternative path for the output current when the switching device 9 is turned off. The cathode of the HV diode 10 is connected to ground.
  • Figure 1 also shows that the output voltage Udc of the DC-bus 1 is connected to the emitter terminal of the switching device 9.
  • FIG. 2 shows the DC power supply used for energizing one field of an electrostatic precipitator 13. This is fed from the negative pole of the common DC-bus 1, the positive pole being connected to ground.
  • the switching device consists of a large number of semiconductor modules connected in series based on power semiconductors with turn-off capabilities like IGBT's, power MOSFET's, etc.
  • the emitter terminal of the switching device is connected to the common DC-bus and the collector terminal of the switching device is connected via a series inductance 11 to the ESP field 13.
  • To the point off coupling (A) between the collector terminal and the series inductance 11 is connected the anode terminal of a HV diode, acting as alternative current path in the time intervals when the switching device 9 is turned off.
  • the cathode terminal of the HV diode 10 is connected to ground.
  • the snubber circuit 21 is connected in parallel with the switching device 9 for limiting the rate of rise of the voltage when this is turned off.
  • the control unit 16 receives feedback signals from the DC power supply by measuring of the output current (mA) and the voltage applied to the ESP field (kV). These signals are obtained by means of a current transducer 15 and a voltage divider 14, respectively.
  • the control unit 16 sends a firing signal 17 to the switching modules via infra-red light emitting diodes mounted in a common PC board 18. This infra-red light 19 is received by a firing unit 20 built in each switching module comprising mainly a photo-diode and an IGBT-driver. Then the firing signal with the required amplitude and duration is applied to the gate of the power semiconductor, e.g. an IGBT.
  • the switching device 9 is normally operated at a constant frequency whose period is equal to the ON-time (t- ON ) plus the OFF-time (t- OFF ).
  • the duty cycle is defined as the ON-time divided by the period (t- ON /(t- ON + t- OFF )).
  • the switching device 9 When the switching device 9 is closed (t- ON ), then the voltage at its collector terminal (point A) is equal to the DC voltage delivered by the DC-bus (U DC ). When the switching device 9 is opened (t- OFF ) then the voltage at point A is equal to the voltage drop across the HV diode 10, which is ideally zero. So the voltage at point A is ideally a square wave varying between U DC and 0V. Then the mean voltage at point A is equal to the voltage U DC multiplied by the duty cycle of the switching device 9. Because the mean voltage across the series inductance 11 is zero, then the mean output voltage applied to the ESP field (point B) is also equal to U DC times the duty cycle. In other words the mean output voltage (U OUT ) and consequently the mean output current (I OUT ) can be varied by varying the duty cycle.
  • FIG 3 shows an alternative embodiment of the invention, where the reservoir capacitor 6 of the common DC-bus 1 is moved into the individual power supplies 8. This may be necessary in case of long distances between the common DC-bus and the individual power supplies increasing the parasitic inductances in the system, thus increasing the risk of overvoltages across the switching device 9.
  • Figure 4 shows, as example, the waveforms of the firing signal (u GATE ), the output current (i OUT ) and the output voltage (u OUT ) applied to one ESP field.
  • the common DC-bus has a rated voltage of 80 kV, the switching frequency is 20 kHz, and the load is represented by a 60 nF capacitor in parallel with 100 k ⁇ . Then the rated output mean current is 800 mA.
  • the series inductance 11 has a sufficient high value that assures that the output current can flow continuously through it (few [H]).
  • the duty cycle D is chosen to be 0.75.
  • the switching device 9 is closed and the output current increases linearly 28.
  • the switching device is open and the output current decreases linearly 29.
  • the peak value 30 of the output current is below the rated value 31 (0.8 A) indicating the low current intensities the switching device has to withstand in this application example.
  • the output voltage is very smooth 33. In practice a ripple of few kilovolts could be expected.
  • Figure 4 shows only one application example. Because of the rated current and voltage values of the DC power supply depends strongly of the particular application of the electrostatic precipitator, both lower and higher rated values should be used in practice.
  • Figure 5 shows, as example, the waveforms of the output voltage (u OUT ) applied to the ESP field 13, the output current (i OUT ), the current (i switch ) through the switching device 9 and the voltage (u switch ) across the switching device 9, in case of a spark.
  • the common DC-bus still has a rated voltage of 80 kV, the switching frequency is 20 kHz, and the load is represented by a 60 nF capacitor in parallel with 100 k ⁇ .
  • the duty cycle D 0.75 as in Figure 4 .
  • the control unit 16 detects the spark 41, it blocks the firing pulses 17 to the gates of the switching device 9 and the output current starts decreasing slowly 43. After the spark and because the short-circuit of the load has disappeared 42, the output current starts decreasing faster down to zero 44. In this example the gate pulses are blocked during a typical interval of 10 ms.
  • the current through the switching device (i switch ) follows the output current during the ON-time 26 and is zero during the OFF-time 27. Then it remains at zero 46 after the spark, because the gate pulses are blocked.
  • the voltage across the switching device (u switch ) oscillates between 0 and the rated voltage 48. After the spark 41 it remains at this level (80 kV). So, neither the peak voltage across the switching device 47, nor the peak value of the current through the switching device 45 exceeds the rated values of the power supply.
  • This waveform is very alike to the one generated by traditional single-phase transformer-rectifier unit energized from a 50 Hz line. (For instance, see EP 0 268 467 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electrostatic Separation (AREA)

Claims (7)

  1. Hochspannungs-Gleichstromversorgungssystem zum Zuführen von Energie für ein oder mehrere Felder eines elektrostatischen Abscheiders (12), wobei das System umfasst:
    eine oder mehrere individuelle Hochspannungs-Gleichstromversorgungseinrichtungen (8), eine für jedes Feld des Abscheiders (12),
    einen Hochspannungs-Gleichstrombus (1), der einen negativen und einen positiven Pol hat und aus einem Dreiphasen-Transformator-Gleichrichter (3, 4) und einem LC-Filter (5, 6) besteht, wobei der Hochspannungs-Gleichstrombus (1) für die eine oder die mehreren Hochspannungs-Gleichstromversorgungseinrichtungen gemeinsam ist,
    wobei das System so ausgelegt ist, dass es mit dem elektrostatischen Abscheider (12) gekoppelt ist, dadurch gekennzeichnet, dass die eine oder mehreren Stromversorgungseinrichtungen (8) eine Schaltvorrichtung (9), eine Reiheninduktanz (11) und eine Hochspannungsdiode (10) umfasst,
    die Schaltvorrichtung (9) einen Emitter und einen Kollektoranschluss hat, wobei der Erste mit dem negativen Pol des Gleichstrombusses (1) und der Zweite mit der Reiheninduktanz (11) verbunden ist,
    wobei der Anodenanschluss der Hochspannungsdiode (10) mit dem Kollektoranschluss der Schaltvorrichtung (9) verbunden und der Kathodenanschluss mit der Erde verbunden ist,
    wobei der andere Anschluss der Reiheninduktanz (11) der Ausgangsanschluss ist, der dazu ausgelegt ist, mit dem Abscheiderfeld (13) verbunden zu sein.
  2. System nach Anspruch 1, bei dem die Schaltvorrichtung (9) unter Verwendung eines MOSFETs gebaut ist.
  3. System nach irgendeinem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass der positive Pol des Hochspannungs-Gleichstrombusses (1) mit der Erde verbunden ist, die Hochspannungs-Stromversorgungseinrichtungen (8) dazu ausgelegt sind, von dem negativen Pol des gemeinsamen Gleichstrombusses (1) unter Strom gesetzt zu werden, wobei der Ausgangs-Hochspannungsanschluss der Hochspannungs-Gleichstromversorgungseinrichtung (8) mit den Entladungselektroden des Abscheiderfeldes (13) verbunden ist.
  4. System nach irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Schaltvorrichtung (9) eine große Anzahl von Modulen in Reihe umfasst und dazu ausgelegt ist, mit einer relativ hohen Schaltfrequenz an- und ausgeschaltet zu werden, um eine gleichmäßige Ausgangsspannung zu erzeugen, die durch Variieren des Arbeitszyklus variiert werden kann.
  5. System nach irgendeinem der Ansprüche 1 bis 4, bei dem die Schaltvorrichtung (9) mit einer Kombination aus Arbeitszyklussteuerung und der Einführung von Blockierzeiten im Millisekundenbereich betrieben werden kann, um in einem oder mehreren Abscheiderfeldern (13) eine pulsierendere Spannung anzulegen.
  6. System nach irgendeinem der vorhergehenden Ansprüche, bei dem der Filterkondensator (6) dazu ausgelegt ist, vollständig oder teilweise innerhalb der von dem gemeinsamen Gleichstrombus (1) gespeisten individuellen Gleichstromversorgungseinrichtungen (8) bewegt zu werden.
  7. System nach irgendeinem der Ansprüche 1 bis 4, das weiterhin eine Steuereinheit (16) aufweist, die dazu ausgelegt ist, nach der Feststellung eines Funkens (41) die Zündimpulse zu den Gates der Schaltvorrichtung (9) für ein Zeitintervall im Millisekundenbereich zu blockieren, um das Auftreten von Stromstößen zu vermeiden.
EP09702191.9A 2008-01-15 2009-01-13 Hochspannungsenergieversorgung für einen elektrostatischen abscheider Not-in-force EP2268407B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200800054 2008-01-15
PCT/EP2009/050308 WO2009090165A2 (en) 2008-01-15 2009-01-13 High voltage power supply for electrostatic precipitator

Publications (2)

Publication Number Publication Date
EP2268407A2 EP2268407A2 (de) 2011-01-05
EP2268407B1 true EP2268407B1 (de) 2015-09-30

Family

ID=40823270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09702191.9A Not-in-force EP2268407B1 (de) 2008-01-15 2009-01-13 Hochspannungsenergieversorgung für einen elektrostatischen abscheider

Country Status (2)

Country Link
EP (1) EP2268407B1 (de)
WO (1) WO2009090165A2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2398139A1 (de) * 2010-06-18 2011-12-21 Alstom Technology Ltd Verfahren zum Betrieb von elektrostatischen Staubabscheidern
CN103350031A (zh) * 2013-06-09 2013-10-16 浙江菲达环保科技股份有限公司 一种电除尘用脉冲电源
DK3112029T3 (da) 2015-06-29 2021-11-22 General Electric Technology Gmbh Impulstændingsmønster til en transformer i et elektrofilter og elektrofilter
BR102022006102B1 (pt) * 2022-03-30 2023-12-05 José Simões Berthoud Precipitador eletrostático com dois transformadores por campo, para energização independente de um grupo de eletrodos no início e de outro grupo de eletrodos no final do mesmo corredor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089082A (en) * 1961-01-10 1963-05-07 Larry L Little Switching circuits
US4909812A (en) * 1984-12-17 1990-03-20 Vsesojuzny elektrotekhnichesky institute imeni V.I. Lenina Device for power supply of gas-cleaning electrical precipitators
JPS624454A (ja) * 1985-07-01 1987-01-10 Mitsubishi Heavy Ind Ltd 自己放電形パルス荷電方式電気集じん装置
SE458988B (sv) * 1986-11-28 1989-05-29 Flaekt Ab Saett att i en elektrostatisk stoftavskiljare faststaella en aendring i stoftavskiljningen
DE69817229D1 (de) * 1998-09-18 2003-09-18 F L Smidth Airtech As Verfahren zum betrieb eines elektrostatischen abscheiders
PL1652586T5 (pl) * 2004-10-26 2016-08-31 Smidth As F L System wytwarzający impulsy dla odpylacza elektrostatycznego

Also Published As

Publication number Publication date
WO2009090165A3 (en) 2009-10-29
WO2009090165A2 (en) 2009-07-23
EP2268407A2 (de) 2011-01-05

Similar Documents

Publication Publication Date Title
EP0208822B1 (de) Elektrostatischer Staubabscheider
US6362604B1 (en) Electrostatic precipitator slow pulse generating circuit
US4600411A (en) Pulsed power supply for an electrostatic precipitator
EP1652586B1 (de) Impulserzeugungseinrichtung für elektrostatische Abscheider
US6461405B2 (en) Method of operating an electrostatic precipitator
US6373723B1 (en) Method and device for generating voltage peaks in an electrostatic precipitator
JPS621464A (ja) 電気集塵器電源装置
EP0661100B1 (de) Elektro-Abscheider
CN104785373B (zh) 一种电除尘脉冲电源
EP2268407B1 (de) Hochspannungsenergieversorgung für einen elektrostatischen abscheider
CN103350031A (zh) 一种电除尘用脉冲电源
EP3612310B1 (de) Hochspannungsstromversorgungssystem
Reyes et al. 4th generation of Coromax pulse generators for ESP's
KR101675018B1 (ko) 마이크로 펄스 하전 방식의 집진기용 전원장치
CN1008694B (zh) 火花频率自控高压硅整流设备
KR20180095163A (ko) 마이크로 펄스 전원 장치 및 이를 이용한 전기 집진 장치
CN2233789Y (zh) 电收尘器高压脉冲叠加装置
Beula et al. High voltage power supply controller for Electrostatic precipitators
CN218514290U (zh) 用于电捕焦油器的恒流高压直流电源的叠加脉冲装置
RU68819U1 (ru) Устройство для питания электрофильтра
Despotović et al. Contemporary Approach to Power of Electrostatic Precipitators
SU1271570A1 (ru) Устройство дл управлени агрегатом питани электрофильтра
KR20140087514A (ko) 마이크로 펄스 장치 및 그 제어방법
SU1263349A1 (ru) Устройство дл управлени источником реверсивного питани электрофильтра
JPS6135170A (ja) 電源装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20101025

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150409

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 752069

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151015

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009033902

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151230

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151231

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20150930

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 752069

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160130

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160131

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160201

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602009033902

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160113

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

26N No opposition filed

Effective date: 20160701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20090113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160131

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150930

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20191230

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20200110

Year of fee payment: 12

Ref country code: DE

Payment date: 20191231

Year of fee payment: 12

Ref country code: GB

Payment date: 20200102

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20200116

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602009033902

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210114

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210131

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210113

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210131

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210803