DE102011089588A1 - Power monitoring device for determining electric power of medium voltage network, has power generation system for feeding electric power into network, and software program including controller that reduces power injected to network - Google Patents
Power monitoring device for determining electric power of medium voltage network, has power generation system for feeding electric power into network, and software program including controller that reduces power injected to network Download PDFInfo
- Publication number
- DE102011089588A1 DE102011089588A1 DE102011089588A DE102011089588A DE102011089588A1 DE 102011089588 A1 DE102011089588 A1 DE 102011089588A1 DE 102011089588 A DE102011089588 A DE 102011089588A DE 102011089588 A DE102011089588 A DE 102011089588A DE 102011089588 A1 DE102011089588 A1 DE 102011089588A1
- Authority
- DE
- Germany
- Prior art keywords
- power
- network
- facility
- electrical
- electric power
- 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.)
- Ceased
Links
- 238000010248 power generation Methods 0.000 title claims abstract description 11
- 230000001172 regenerating Effects 0.000 claims abstract description 11
- 230000000875 corresponding Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
-
- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
Description
Die Erfindung betrifft eine Einrichtung zur Ermittlung einer elektrischen Größe, insbesondere eines elektrischen Netzes, gemäß dem Patentanspruch 1. The invention relates to a device for determining an electrical variable, in particular an electrical network, according to the patent claim 1.
Einrichtungen zur Ermittlung von elektrischen Größen eines elektrischen Netzes sind als Power Monitoring Devices (PMD) bekannt. Sie verfügen zumindest über zwei Messeingänge, zumindest einen für einen Strom und einen für die zugehörige Spannung. Derartige Einrichtungen digitalisieren die an den Messeingängen anliegenden Signale, welche nachfolgend von einer Prozessoreinheit weiterverarbeitet werden. Zur Weiterverarbeitung dient eine Software, die daraus als elektrische Größe zumindest die elektrische Leistung berechnet. Devices for determining electrical variables of an electrical network are known as Power Monitoring Devices (PMD). They have at least two measuring inputs, at least one for a current and one for the associated voltage. Such devices digitize the signals applied to the measurement inputs, which are subsequently processed by a processor unit. For further processing, a software is used, which calculates at least the electric power as electrical quantity.
Weiter sind Photovoltaikanlagen bekannt, welche elektrische Energie erzeugen und insbesondere in ein elektrisches Netz einspeisen. Bei diesem Netz kann es sich um ein Mittelspannungsnetz handeln. Um Netzüberlastungen auszuschließen, muss für Anlagen ab 100 kW für den Netzbetreiber (den Energieversorger) eine Möglichkeit bestehen, die in das Netz eingespeiste Leistung zu reduzieren. Zu diesem Zweck stehen Steuerungsboxen zur Verfügung, die mit den Solar-Wechselrichtern der Photovoltaikanlagen kommunizieren. Die Steuerungsboxen geben dem Anwender, meist der Betreiber der Photovoltaikanlage, einen Überblick über die eingespeiste Leistung und ermöglichen es ihm, die Leistungsreduzierung durch den Energieversorger zu kontrollieren. Der technische Aufbau einer derartigen Steuerungsbox besteht im Wesentlichen aus einer speicherprogrammierbaren Steuerung (SPS), einer Messeinrichtung sowie einem oder mehreren Wechselrichtern. Diese Steuerung bildet in einem solchen System die zentrale Einheit (quasi die Steuerzentrale), sie nimmt die Messwerte aus der Messeinrichtung auf und errechnet je nach Netzbetreibervorgabe entsprechende Steuerbefehle für die Wechselrichter. Next photovoltaic systems are known which generate electrical energy and in particular feed into an electrical grid. This network can be a medium voltage network. In order to exclude grid overloads, for systems above 100 kW, the grid operator (utility) must be able to reduce the power fed into the grid. Control boxes are available for this purpose, which communicate with the solar inverters of the photovoltaic systems. The control boxes give the user, usually the operator of the photovoltaic system, an overview of the fed-in power and enable him to control the power reduction by the energy supplier. The technical structure of such a control box consists essentially of a programmable logic controller (PLC), a measuring device and one or more inverters. In such a system, this control forms the central unit (quasi the control center), it picks up the measured values from the measuring device and calculates corresponding control commands for the inverters depending on the network operator specification.
Die Aufgabe der Erfindung ist es, eine Einrichtung zu schaffen, welche mit relativ geringem technischem Aufwand die Kontrolle und Reduzierung der von einer regenerativen Energieerzeugungsanlage in ein Netz eingespeisten Leistung ermöglicht. The object of the invention is to provide a device which enables the control and reduction of the fed from a regenerative power generation plant in a network performance with relatively little technical effort.
Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst; die Unteransprüche stellen vorteilhafte Ausgestaltungen dar. The object is solved by the features of claim 1; the dependent claims represent advantageous embodiments.
Die Lösung sieht vor, dass die ermittelte Leistung die von einer regenerativen Energieerzeugungsanlage erzeugte Leistung ist, dass die Energieerzeugungsanlage die elektrische Leistung in ein elektrisches Netz einspeist, dass die ins Netz einspeisbare Leistung reduzierbar ist, dass die Software eine Steuerung umfasst und dass die Steuerung bei einer Vorgabe zur Reduzierung der Leistung die Reduzierung der ins Netz eingespeisten Leistung veranlasst. The solution provides that the determined power is the power generated by a regenerative power generation plant, that the power generation plant feeds the electric power into an electric grid, that the power that can be fed into the grid is reducible, the software comprises a controller and the control unit at a reduction of power requirement causes the reduction of power fed into the grid.
Zweckmäßigerweise ist die Vorgabe eine Netzbetreibervorgabe. Conveniently, the default is a network operator default.
Technisch einfach ist es, wenn die Steuerung zur Veranlassung der Reduzierung einen entsprechenden Steuerbefehl erzeugt. It is technically simple if the control generates a corresponding control command to initiate the reduction.
Der technische Aufwand lässt sich reduzieren, wenn die regenerative Energieerzeugungsanlage einen Wechselrichter zur Einspeisung umfasst und die Steuerung zur Reduzierung der eingespeisten Leistung den Steuerbefehl an den Wechselrichter sendet. The technical complexity can be reduced if the regenerative power generation plant includes an inverter for feeding and the controller sends the control command to the inverter to reduce the power fed.
Mit geringem Aufwand lässt sich der Steuerbefehl mittels eines Kommunikationsnetzes übertragen. With little effort, the control command can be transmitted by means of a communication network.
Zweckmäßigerweise weisen die Einrichtung als auch die regenerative Energieerzeugungsanlage eine entsprechende Kommunikationsschnittstelle zur Datenübertragung auf. Expediently, the device and the regenerative power generation system have a corresponding communication interface for data transmission.
Vorteilhafterweise ist die regenerative Energieerzeugungsanlage eine Photovoltaikanlage. Advantageously, the regenerative power generation plant is a photovoltaic system.
Die Erfindung wird nachfolgend anhand einer Zeichnung näher beschrieben, die als Einrichtung
Das PMD
Es ist über Messeingänge MU, MI mit der Photovoltaikanlage
Das elektrische Netz
Die beiden Messeingänge MU, MI sind mit einem Digitalisierer
Über einen Wechselrichter
Über einen Rundsteuerempfänger
Das PMD nimmt hier also direkt die Vorgaben des Netzbetreibers über den Rundsteuerempfänger
Die Wechselrichter-Vorgaben werden mittels parametrierbarer Algorithmen der Software
Die Photovoltaik-Kontrolllogik ist hier lediglich als Addon zur Grundfunktionalität des PMD
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011089588A DE102011089588A1 (en) | 2011-12-22 | 2011-12-22 | Power monitoring device for determining electric power of medium voltage network, has power generation system for feeding electric power into network, and software program including controller that reduces power injected to network |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011089588A DE102011089588A1 (en) | 2011-12-22 | 2011-12-22 | Power monitoring device for determining electric power of medium voltage network, has power generation system for feeding electric power into network, and software program including controller that reduces power injected to network |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011089588A1 true DE102011089588A1 (en) | 2012-11-15 |
Family
ID=47070412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011089588A Ceased DE102011089588A1 (en) | 2011-12-22 | 2011-12-22 | Power monitoring device for determining electric power of medium voltage network, has power generation system for feeding electric power into network, and software program including controller that reduces power injected to network |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102011089588A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1022976B1 (en) * | 2015-08-05 | 2016-10-25 | Innotech Bvba | IMPROVED SYSTEM, DEVICE AND METHODS |
US10367356B2 (en) | 2013-04-13 | 2019-07-30 | Honey Badger International Pty Ltd. | Energy generation load compensation |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1521345A1 (en) * | 1996-08-30 | 2005-04-06 | Canon Kabushiki Kaisha | Power control apparatus for solar power generation system |
DE102007017870A1 (en) * | 2007-04-13 | 2008-10-16 | Repower Systems Ag | Method for operating a wind energy plant with overvoltages in the network |
US20100191489A1 (en) * | 2009-01-28 | 2010-07-29 | Uqm Technologies, Inc. | Distributed Generation Power System |
US20110060474A1 (en) * | 2009-09-04 | 2011-03-10 | Voltwerk Electronics Gmbh | Power control device for a power grid, comprising a control unit for controlling an energy flow between the power generation unit, the energy storage unit, the consumer unit and/or the power grid |
EP2295892A1 (en) * | 2009-09-10 | 2011-03-16 | SMA Solar Technology AG | Method and Apparatus for determining possible deliverable power for given irradiation conditions |
US20110221269A1 (en) * | 2007-05-14 | 2011-09-15 | Sma Solar Technology Ag | Power generation system comprising a plurality of inverters |
-
2011
- 2011-12-22 DE DE102011089588A patent/DE102011089588A1/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1521345A1 (en) * | 1996-08-30 | 2005-04-06 | Canon Kabushiki Kaisha | Power control apparatus for solar power generation system |
DE102007017870A1 (en) * | 2007-04-13 | 2008-10-16 | Repower Systems Ag | Method for operating a wind energy plant with overvoltages in the network |
US20110221269A1 (en) * | 2007-05-14 | 2011-09-15 | Sma Solar Technology Ag | Power generation system comprising a plurality of inverters |
US20100191489A1 (en) * | 2009-01-28 | 2010-07-29 | Uqm Technologies, Inc. | Distributed Generation Power System |
US20110060474A1 (en) * | 2009-09-04 | 2011-03-10 | Voltwerk Electronics Gmbh | Power control device for a power grid, comprising a control unit for controlling an energy flow between the power generation unit, the energy storage unit, the consumer unit and/or the power grid |
EP2295892A1 (en) * | 2009-09-10 | 2011-03-16 | SMA Solar Technology AG | Method and Apparatus for determining possible deliverable power for given irradiation conditions |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10367356B2 (en) | 2013-04-13 | 2019-07-30 | Honey Badger International Pty Ltd. | Energy generation load compensation |
US11043816B2 (en) | 2013-04-13 | 2021-06-22 | Honey Badger International Pty Ltd. | Energy generation load compensation |
US11545835B2 (en) | 2013-04-13 | 2023-01-03 | Honey Badger International Pty Ltd. | Energy generation load compensation |
BE1022976B1 (en) * | 2015-08-05 | 2016-10-25 | Innotech Bvba | IMPROVED SYSTEM, DEVICE AND METHODS |
WO2017021548A1 (en) * | 2015-08-05 | 2017-02-09 | Innotech Bvba | Improved system, device and methods for regenerating solar panels |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2984530B1 (en) | Measuring transducer feed unit, system for use in automation technology, and method for operating such a system | |
EP1427086B1 (en) | Electrical apparatus and method for operating it | |
DE102011107932B3 (en) | System and method for determining electrical characteristics | |
WO2012163603A1 (en) | Radio unit having a supply circuit for supplying voltage and method for operating such a radio unit | |
EP2988183A1 (en) | Remote control assembly, system and method for observing and/or controlling a plant | |
EP3649631B1 (en) | Field device adapter for wireless data transmission | |
EP2598954A1 (en) | Configuration of the communication links of field devices in a power automation installation | |
RU2552842C2 (en) | Digital transformer substation | |
CN103092246B (en) | System and method for power supply monitoring | |
DE102012100673A1 (en) | Device for supplying electrical energy from e.g. photovoltaic current generating device to low voltage-mains supply, has switching units connected to coupling units to switch coupling units between phases based on power difference quantity | |
EP1690390B1 (en) | Method for transmitting data via a data bus and system and gateway for carrying out said method | |
WO2006074981A1 (en) | Automation system | |
DE102012016403B4 (en) | Method for parameterizing a field device and corresponding field device and system for parameterization | |
DE102011089588A1 (en) | Power monitoring device for determining electric power of medium voltage network, has power generation system for feeding electric power into network, and software program including controller that reduces power injected to network | |
EP2071693A2 (en) | Method and switching arrangement to control energy feed for several single-phase inverters in a multiple phase network | |
EP3775942B1 (en) | Intermediate module, receiver module, monitoring system and monitoring method | |
DE102012010899A1 (en) | Power supply module for providing supply voltage to electromotor in drive system that is utilized for operating machine, has computing unit for performing analysis process that comprises harmonic analysis process to determine harmonics | |
DE102011085877B4 (en) | Communication method and communication device for the process industry | |
DE102013103212A1 (en) | System for determining and / or monitoring and / or influencing at least one process variable | |
EP2426431A2 (en) | System for tracking solar cell modules depending on the position of the sun | |
DE102016113028A1 (en) | SYSTEM FOR MONITORING ENERGY CONSUMPTION IN INDUSTRIAL PLANTS AND ENERGY MEANS AND TRANSMISSION MODULE THEREFOR | |
EP2781005A1 (en) | Energy distribution network | |
DE102013008812A1 (en) | System and method for determining electrical characteristics | |
DE102019116193A1 (en) | Field device of automation technology | |
DE112014003069T5 (en) | Function unit, analog input unit and programmable control system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R230 | Request for early publication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |
Effective date: 20121228 |