WO2009024174A1 - Verfahren und anordnung zum überwachen einer energieübertragungsanlage - Google Patents
Verfahren und anordnung zum überwachen einer energieübertragungsanlage Download PDFInfo
- Publication number
- WO2009024174A1 WO2009024174A1 PCT/EP2007/007416 EP2007007416W WO2009024174A1 WO 2009024174 A1 WO2009024174 A1 WO 2009024174A1 EP 2007007416 W EP2007007416 W EP 2007007416W WO 2009024174 A1 WO2009024174 A1 WO 2009024174A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- measured values
- processing device
- value processing
- measured value
- measured
- Prior art date
Links
Classifications
-
- 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
- H02J13/00002—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 monitoring
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S10/30—State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
Definitions
- the invention relates to a method for monitoring an energy transmission system and for generating an error signal indicating an error of the energy transmission system, wherein measured values of a preceding measured value processing device or measured values derived therefrom are further processed with a directly or indirectly downstream measured value processing device and the further processed measured values be examined for the presence of a fault and the error signal is generated on the basis of the further processed measured values.
- power quality measurement units used to monitor the quality of the energy of an energy transfer
- instantaneous values of voltage or current but with derived, averaged rms values.
- a sequence of half-wave RMS values is first formed from sampled instantaneous values, and these are averaged over a defined averaging period of, for example, 10 minutes.
- the sampled instantaneous values or sampled values present on the input side thus represent measured values of an "upstream" measured value processing device, which is further processed with the downstream measured value processing device in the form of the actual power quality measuring unit and examined for the presence of a quality error.
- the invention has for its object to provide an even more efficient method for generating an error signal than before.
- measured values of at least one upstream measured value processing device and / or measured values derived therefrom are temporarily stored by the downstream measured value processing device temporarily, for example for a predetermined time span, and if all of the measured values of the at least one are present when the error signal is present upstream measured value processing device and / or all those measured values derived therefrom are stored permanently. be used with which the further processed measured values have been formed.
- An essential advantage of the method according to the invention is that not only can error signals be generated with it, but further investigations in the event of a fault are made possible because, in addition to the error signal and the associated further processed measured values, additional measured values are additionally present, namely the at least one upstream measured value processing device.
- the measured values of at least one upstream measured value processing device for example a single upstream measured value processing device, all upstream measured value processing devices or part of the upstream measured value processing devices-are temporarily buffered so that they are additionally available in the event of an error.
- the triggering or triggering signal for triggering the permanent storage of the raw data - the measured values of the upstream measured value processing devices or the measured values derived therefrom are understood to mean directly the error signal itself, so that the Raw data are only sent to a permanent storage when an error has actually occurred. If no error occurs, the raw data need not be preserved, but can be discarded, ie deleted or released for deletion.
- the method according to the invention thus differs fundamentally from the mode of operation of previous fault recorders, as marketed, for example, by Siemens AG under the product name SIMEAS R.
- the prior art disturbance recorder is capable of measuring in high temporal but rather use resolution as the starting event or trigger signal, which refers to the measured values applied to the input: this means, for example, that only sampled values can be stored if sampling values are present at the input of the disturbance recorder; the specified limit values must therefore always relate to the respective measured value level which is present on the input side.
- the intermediate storage is carried out at the "pre-level", ie at the level of the measured values of upstream measured value processing devices or at the level derived therefrom, while the trigger signal is the error signal,
- the level of measurement value storage and that of the trigger signal formation diverge because further processed measured values are used for the trigger signal formation and the matching raw data are used for the storage easier and more reliable than previously possible, the
- all temporarily stored measured values are automatically deleted after expiry of a predetermined period of time or released for deletion, provided that by Expiration of the predetermined period no error signal is present.
- all temporarily temporarily stored measured values are automatically deleted or released for deletion, provided that the further processed measured values formed with them show no error.
- the measured value number is preferably reduced during the formation of the further processed measured values and / or during the formation of the measured values derived from the measured values of upstream measured value processing devices. Namely, such a "compression" of the measured values has the advantage that, overall, fewer measured values have to be processed in the downstream measured-value processing device, and thus the communication means required for data transmission are also relieved.
- the measured values of the higher-order measured-value processing device or the measured values derived therefrom are averaged during the formation of the further-processed measured values.
- the monitoring of energy quality in energy transmission systems plays an important role, so that it is considered advantageous if the further processed measured values are checked as to whether the quality of the energy of the energy transmission system falls below a predetermined minimum standard and if so in such case the error signal is generated.
- the temporary buffering of the measured values preferably takes place in a volatile memory, for example a memory RAM memory or the like; the permanent storage of the measured values, however, preferably takes place in a permanent memory, such.
- a volatile memory for example a memory RAM memory or the like
- the permanent storage of the measured values preferably takes place in a permanent memory, such.
- a flash memory or a hard disk As a flash memory or a hard disk.
- the invention also relates to an arrangement having a downstream measured value processing device and at least one measured value processing device directly or indirectly upstream of the downstream measured value processing device, wherein the downstream measured value processing device is adapted to further process the measured values of the upstream measured value processing device or measured values derived therefrom and the further processed ones To check measured values for the presence of a fault.
- the invention is in this respect the task of specifying an even more powerful arrangement for generating an error signal than previously known.
- the upstream measured value processing device has a temporary storage device which is suitable for storing the measured values of the upstream measured value processing device for a predefined period of time, and in which the downstream measured value processing device is connected directly or indirectly to the intermediate storage device, wherein the downstream measured value processing device is configured such that it blocks a deletion of all or a predetermined part of the measured values stored in the temporary storage device and / or transmits all or a predetermined part of the measured values of the upstream measured value processing device to a further memory device or by the upstream measured value processing. as soon as it has detected an error on the basis of the further processed measured values.
- Figure 1 shows a first embodiment of an arrangement for monitoring an energy transmission system
- FIG. 2 shows a second exemplary embodiment of an arrangement for monitoring an energy transmission system and for generating an error signal, wherein in this exemplary embodiment the time duration of a temporary buffering of measured values corresponds to an integral multiple of the measuring period which is used for the generation of further processed measured values and thus of the error signal,
- FIG. 3 shows a third exemplary embodiment of an arrangement for monitoring an energy transmission system and for generating an error signal, in which In the case of an error, a permanent storage of measured values in read-only memory devices-specific permanent memories takes place, and
- FIG. 4 shows a fourth exemplary embodiment of an arrangement for monitoring an energy transmission system with regard to a flicker error.
- FIG. 1 shows three measured value processing devices 10, 20 and 30 arranged in cascade or one after the other.
- the first measured value processing device 10 and the second measured value processing device 20 are upstream measured value processing devices with respect to the third measured value processing device 30;
- the measured value processing device 30 will therefore also be referred to below as the downstream measured value processing device.
- the second measured value processing device 20 is an "interposed" measured value processing device, which is arranged upstream of the first measured value processing device 10 and upstream of the third measured value processing device 30.
- the first measured-value processing device 10 samples, for example, a voltage signal of an energy transmission system 40, of which only phase conductors 50 are shown in FIG. 1 for the sake of clarity, in a sampling device 100 with a sampling frequency fa of 10 kHz, so that ten thousand measuring or sampling pulses per minute are detected ., Samples Ma.
- the number Al is calculated as follows:
- the first measured-value processing device 10 transmits its measured values Ma to the second measured-value processing device 20 which "compresses" the ten thousand measured values Ma present on the input side per minute in a processing unit 200 and processes them into processed measured values Mb.
- value processing device 20 half-wave effective values by averaging in each case 10 measured values of a half-wave of the voltage signal of the energy transmission system 40 to a half-wave effective value Mb.On the assumption that the energy transmission system is operated at a mains frequency fn of 50 Hz, this compression thus becomes 100 measured values Mb per minute formed.
- the number A2 of the stored measured values is thus:
- the second measured-value processing device 20 transmits its measured values Mb to the third following it
- Measured-value processing device 30 which further "compresses" the one hundred measured values Mb present on the input side in a processing device 300 and further processes them into further processed measured values Mc
- the third measured-value processing device 30 forms ten-minute average values Mc by averaging the measured values Mb of the last 10 minutes each into a ten-minute average value Mc. As a result of this compression, a single measured value Mc is formed per ten minutes.
- the third measured value processing device 30 may, for example, form a power quality measuring unit which compares the ten-minute average values Mc with a threshold value V and generates an error signal F when the threshold value is exceeded; Such a comparison can be carried out, for example, with a comparator, which is designated in FIG. 1 by the reference numeral 310.
- the power quality measuring unit 30 can also use other evaluation algorithms in order to determine from the ten-minute average values Mc whether a predetermined minimum energy quality is reached or undershot.
- the third measured-value processing device 30 can be embodied, for example, as a data-processing system which evaluates the measured values Mb applied on the input side, forms the ten-minute average values Mc and generates the error signal F.
- this error signal F has a double function: one function of the error signal F is to indicate the presence of an error, as already indicated by the term error signal; Another function of the error signal F is to act as a trigger signal and trigger the permanent saving of the measured values Ma and Mb, which have been formed by the upstream measured value processing devices 10 and 20 and stored only temporarily for the preceding period of 10 minutes each , As soon as an error has been detected on the basis of one or more measured values Mc with the third measured-value processing device 30, the question arises as to the cause of the error.
- the error signal F is used as the trigger signal
- the time duration of the temporary buffering in the memory devices 110 and 210 therefore corresponds to the measured value duration, which is taken into account for the generation of each of the further processed measured values Mc and thus indirectly for the generation of the error signal.
- the time duration of the temporary buffering in the memory devices 110 and 210 therefore corresponds to an integer multiple-in this case three times-of the measuring time duration which is taken into account for the generation of each of the further processed measured values Mc and thus indirectly for the generation of the error signal becomes.
- FIG. 3 is a third embodiment of an arrangement for monitoring the power transmission system 40 and for generating the error signal F shown.
- the measured values Ma and Mb are not stored in a central permanent memory 400, but in permanent read-only memories 410 and 420, in which the data for Error cause determination can be read out below via a not further shown communication system (Internet, modem, GSM, etc.).
- the measured values Mc and the error signal F are stored, for example, in a read-only-memory-independent permanent memory 430.
- FIG. 4 shows an exemplary embodiment of an arrangement for detecting a flicker error in the energy transmission system 40.
- the arrangement has four cascaded or consecutively arranged measured value processing devices 10, 20, 20 'and 30.
- the measured-value processing device 40 is therefore also referred to below as a downstream measured-value processing device.
- the first measured value processing device 10 samples a voltage signal of the energy transmission system 40 in a scanning device 100 at a sampling frequency fa of 10 kHz, so that thus ten thousand measurement or sampling Ma result per minute.
- the number Al is calculated as follows:
- the first measured value processing device 10 transmits its measured values Ma to the second measured value processing device 20 downstream of it, which measures the measured values Ma present in the input side in a processing unit 200
- a measured value PF5 per second arises at the output of the second measured-value processing device 20.
- the number A2 of the stored measured values is thus:
- the second measured-value processing device 20 transmits its measured values PF5 to the third measured-value processing device 20 ', which processes the measured values PF5 present on the input side in a processing device 200' and matches measured values Pst with the IEC 61000-4-15 standard, with a clock rate of one measured value per minute.
- the number A2 'of the stored measured values is therefore also:
- the fourth measured-value processing device 30 uses the measured values Pst in accordance with standard EN50160 to generate measured values PLT (one measured value per 2 hours) and evaluates them in an evaluation device 310. If this evaluation device 310 detects a flicker error, it generates an error signal F.
- This error signal F has a double function: one function of the error signal F is to indicate the presence of the flicker error, and a further function of the error signal F is therein to act as a trigger signal and to trigger the permanent saving of the measured values Ma, PF5 and Pst, which are formed by the preceding measured value processing devices 10, 20 and 20 'and initially only temporarily for a period of time each
- the measured values are transferred to the individual, permanent storage devices 410, 420 and 420 ', so that they are available for a subsequent determination of the cause of the flicker error.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
- Locating Faults (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07801844A EP2179486A1 (de) | 2007-08-20 | 2007-08-20 | Verfahren und anordnung zum überwachen einer energieübertragungsanlage |
PCT/EP2007/007416 WO2009024174A1 (de) | 2007-08-20 | 2007-08-20 | Verfahren und anordnung zum überwachen einer energieübertragungsanlage |
CN200780100176.2A CN101779358B (zh) | 2007-08-20 | 2007-08-20 | 用于监视能量传输设备的方法以及装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2007/007416 WO2009024174A1 (de) | 2007-08-20 | 2007-08-20 | Verfahren und anordnung zum überwachen einer energieübertragungsanlage |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009024174A1 true WO2009024174A1 (de) | 2009-02-26 |
Family
ID=39591305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/007416 WO2009024174A1 (de) | 2007-08-20 | 2007-08-20 | Verfahren und anordnung zum überwachen einer energieübertragungsanlage |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2179486A1 (de) |
CN (1) | CN101779358B (de) |
WO (1) | WO2009024174A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000048284A1 (en) * | 1999-02-12 | 2000-08-17 | Alstom T&D Bitronics, Inc. | A distributed monitoring and protection system for a distributed power network |
US20010048375A1 (en) * | 2000-05-23 | 2001-12-06 | Kabushiki Kaisha Toshiba | Apparatus monitoring system and apparatus monitoring method |
WO2005093924A1 (ja) * | 2004-03-25 | 2005-10-06 | Ip Power Systems Corp. | 複数の電力需要者集合エリアの電力システム |
-
2007
- 2007-08-20 WO PCT/EP2007/007416 patent/WO2009024174A1/de active Application Filing
- 2007-08-20 CN CN200780100176.2A patent/CN101779358B/zh not_active Expired - Fee Related
- 2007-08-20 EP EP07801844A patent/EP2179486A1/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000048284A1 (en) * | 1999-02-12 | 2000-08-17 | Alstom T&D Bitronics, Inc. | A distributed monitoring and protection system for a distributed power network |
US20010048375A1 (en) * | 2000-05-23 | 2001-12-06 | Kabushiki Kaisha Toshiba | Apparatus monitoring system and apparatus monitoring method |
WO2005093924A1 (ja) * | 2004-03-25 | 2005-10-06 | Ip Power Systems Corp. | 複数の電力需要者集合エリアの電力システム |
Also Published As
Publication number | Publication date |
---|---|
CN101779358B (zh) | 2014-12-31 |
CN101779358A (zh) | 2010-07-14 |
EP2179486A1 (de) | 2010-04-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4430246C2 (de) | Verfahren und Anordnung zum Überwachen von Stromversorgungsnetzen | |
DE3780405T2 (de) | Abstandsschutz von dreiphasen-verteiltransformatoren. | |
EP1941285B1 (de) | Verfahren zum erzeugen eines datensatzes und feldgerät sowie system zum erfassen der elektroenergiequalität eines energieversorgungsnetzes | |
EP2008352A1 (de) | Verfahren zum überwachen der elektroenergiequalität in einem elektrischen energieversorgungsnetz, power-quality-feldgerät und power-quality-system | |
EP0840896B1 (de) | Elektrizitätszähler | |
DE2400291A1 (de) | Verfahren und vorrichtung zur anzeige des abnutzungszustandes eines werkzeuges | |
WO1991016637A1 (de) | Vorrichtung zur funktionsüberwachung eines elektrischen verbrauchers, seiner ansteuerung und der dazugehörigen verbindungen | |
CH615404A5 (de) | ||
DE102016113624A1 (de) | Motorantrieb mit Funktion zum Detektieren von Schaltungsabnormalitäten aufgrund eindringender Fremdstoffe, bevor es zu einer erheblichen Abnormalität kommt | |
AT402770B (de) | Verfahren zum überwachen eines drehstromnetzes auf eine abstimmungsänderung der erdschlusslöschspule | |
DE102014220421A1 (de) | Messknoten, System und Verfahren zur Überwachung des Zustands eines Energieversorgungsnetzwerks | |
DE102012016686A1 (de) | Verfahren und Vorrichtung zur Messung von dielektrischen Kenngrößen der Isolation von Hochspannungsgeräten | |
DE102017217127A1 (de) | Verfahren und Anordnung zum Erkennen von Teilentladungen bei einem elektrischen Betriebsmittel | |
DE19832387A1 (de) | Verfahren zum Feststellen von Einbau- und/oder Kalibrierungsfehlern einer Mehrzahl von Signalauskopplungseinheiten eines oder mehrerer Teilentladungsmeßsysteme | |
EP3747098A1 (de) | Fehlerdetektionsvorrichtung einer ortsnetzstation und einrichtung zur meldung eines fehlers an eine zentrale steuervorrichtung | |
WO2009010084A1 (de) | Datenkonzentrator, redundantes schutzsystem und verfahren zum überwachen eines schutzobjektes in einem elektrischen energieversorgungsnetz | |
EP1886392A1 (de) | Verfahren zum vermeiden einer messfehlerbedingten ungewollten schutzauslösung innerhalb eines schutzsytems einer hgü-anlage | |
EP2179486A1 (de) | Verfahren und anordnung zum überwachen einer energieübertragungsanlage | |
DE2907857C2 (de) | Schaltungsanordnung zur Bestimmung der Reaktanz einer Energieübertragungsleitung im Kurzschlußfalle | |
EP2388602B1 (de) | Verfahren zur Diagnose von Kontakten einer Photovoltaikanlage und Vorrichtung | |
EP3300201A1 (de) | Verfahren und einrichtung zum überwachen einer energieübertragungseinrichtung | |
WO2011023296A1 (de) | Überwachungssystem für leistungstransformatoren und überwachungsverfahren | |
DE102019132071A1 (de) | Vorrichtung zum Überwachen eines Versorgungsnetzes | |
EP3388848B1 (de) | Verfahren, messeinrichtung und messsystem, zum ermitteln zumindest einer diagnosegrösse in einem elektrischen energieversorgungsnetz | |
EP2848949A1 (de) | Verfahren und Vorrichtung zur Überwachung eines Isolationswiderstandes in einem ungeerdeten Stromversorgungssystem |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200780100176.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07801844 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2007801844 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007801844 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 410/KOLNP/2010 Country of ref document: IN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |