CH706074B1 - Device and method for controlling electrical consumers. - Google Patents

Device and method for controlling electrical consumers. Download PDF

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Publication number
CH706074B1
CH706074B1 CH00977/13A CH9772013A CH706074B1 CH 706074 B1 CH706074 B1 CH 706074B1 CH 00977/13 A CH00977/13 A CH 00977/13A CH 9772013 A CH9772013 A CH 9772013A CH 706074 B1 CH706074 B1 CH 706074B1
Authority
CH
Switzerland
Prior art keywords
switching
voltage
electrical
value
switching module
Prior art date
Application number
CH00977/13A
Other languages
German (de)
Inventor
Roland Ochenbauer Ing
Original Assignee
Roland Ochenbauer Ing
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 Roland Ochenbauer Ing filed Critical Roland Ochenbauer Ing
Publication of CH706074B1 publication Critical patent/CH706074B1/en

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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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • 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
    • H02J13/00004—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the power network being locally controlled
    • 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
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • 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
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • 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
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J3/144—Demand-response operation of the power transmission or distribution network
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/12—The local stationary network supplying a household or a building
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving

Abstract

The invention relates to a device (1) for controlling electrical loads (5) with an electrical switching module (2) connected to the power supply (4), with a switching function for switching the voltage supply (12) on and off (2) has an input (10) for receiving switching commands. (DE). WIPO Home services World Intellectual Property Organization A control device (7) is connected to the input (10) of the electrical switching module (2) and to the power supply (4), wherein the control device (7) is designed to determine the local mains voltage locally in the control device (7) To determine switching voltage values ​​based on the values ​​of the local mains voltage, (5) to the input (10) of the electrical switching module (2) when the switching voltage values ​​are exceeded on the output (8) of the control device (7). The invention also relates to a method for controlling electrical loads.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device and a method for controlling electrical loads, comprising an electrical switching module connected to the power supply and having a switching function with which it switches on or off the voltage supply at a switching output to the electrical consumers depending on the switching state And the electrical switching module has an input for receiving switching commands, a control device, which is connected to the input of the electrical switching module and which is connected to the power supply network, measures the local mains voltage, locally determines in the control device switching voltage values ​​based on the values ​​of the local mains voltage,And when the switching voltage values ​​determined locally in the control device are exceeded, the control circuit transmits the command for switching to the input of the electrical switching module at the output of the control device.
The balance between energy supplied into the electricity grid, energy generation, and energy taken from the electricity grid, energy consumption, must always be maintained. The increasing number of decentralized energy producers, for example photovoltaic systems with grid feed into the low-voltage power grid at the energy end customer, is a major problem, since the energy production of the decentralized energy producers can only be predicted inadequately, but must be taken into account in order to optimize the electricity network Energy production and energy consumption. In the low-voltage power network, for example, the mains voltage, If, with constant energy consumption and constant central energy input, the decentralized energy producers additionally feed energy into the low-voltage network. In this case, one speaks of an energy surplus.
SUMMARY OF THE INVENTION The object of the invention is to develop a device and a method for the control of electrical consumers in such a way that it detects an energy surplus or an energy deficit in the power grid locally locally under power conditions In the event of an energy deficit, immediately switches off or switches off immediately in the case of an energy deficit, thus decisively improving the balance between energy supply and energy extraction.
[0003] This object is achieved in a first aspect of the invention by the characterizing part of the independent device claim in conjunction with the features of the preamble and the suitably designed features of the subclaims.
A control device which is connected to the input of the electrical switching module is designed to measure the local mains voltage locally to determine switching voltage values ​​on the basis of the values ​​of the local mains voltage and to exceed the switching voltage values ​​determined locally in the control device at the input of the control device Of the electrical switching module, the electrical switching module switching on or off the voltage supply at a switching output to the electrical consumers, depending on the switching state.
The invention is based on the discovery that the measured change in the local mains voltage at the energy end customer can be used to locally determine an energy surplus or an energy deficit in the power grid, and subsequently to switch locally switchable electrical loads at the energy end customer with an energy surplus or at an energy deficit And thus decisively improves the balance between energy supply and energy extraction. In a low-voltage network which is connected to a medium-voltage network via a transformer, the maximum occurring changes in the local mains voltage due to the voltage drop on the low-voltage line at energy end customers near a transformer station are lower than in the case of energy end customers, Which are further connected to the low-voltage network remote from the transformer station. For a local control of the electrical loads, this requires a local mains voltage measurement at the energy end customer, a local determination of switching voltage values ​​which are dependent on the locally measured maximum changes in the local mains voltage, and a circuit of the electrical loads when the switching voltage values ​​are exceeded.
A preferred embodiment of the invention is distinguished by the fact that the electrical switching module is closed by a contactor which is open between the switching state of the electrical switching module open, which means open circuit and no voltage supply of the electrical loads, and the switching state of the electrical switching module, which is a closed circuit and a voltage supply of the electrical switching module Electrical consumer, is switched, whereby conventional electrical switching modules can be used and a wide applicability is ensured. According to a further preferred embodiment of the invention, the control device has an input for receiving external switching commands from external devices at the energy end customer,
[0004] This object is achieved in a second aspect of the invention by the characterizing part of the method main claim in conjunction with the features of the preamble as well as the suitably designed features of the dependent claims.
The invention provides a method for controlling electrical consumers by means of an electrical switching module which is connected to the power supply and has a switching function with which it switches on or off the voltage supply at a switching output to the electrical consumers, depending on the switching state The following steps: - Determination of the local mains voltage - Determination of the switching voltage values ​​on the basis of the values ​​of the local mains voltage - When the switching voltage values ​​are exceeded Switching the electrical switching module. For this purpose, the following basic value determination is preferred in which: the local mains voltage is measured, the measured values ​​of the local mains voltage as instantaneous values ​​of the local mains voltage with time stamps in a configurable interval,
A preferred embodiment of the invention is characterized in that the higher switching voltage value is determined as a value between the average local mains voltage over a defined period of time and the highest value of the local mains voltage in a defined period in the second table, preferably according to the formula It is determined that the highest value of the mains voltage in the second table is summed with the average local mains voltage and the sum is divided by two.
A further preferred embodiment of the invention is characterized in that, for the period in which the most recent value of the local mains voltage from the second table is higher than the higher switching voltage value, the electrical switching module is switched to the switching state of the electrical switching module, which is a closed circuit And a voltage supply for the electrical loads.
A further preferred embodiment of the invention is characterized in that the lower switching voltage value is set as a value between the lowest value of the local mains voltage in a defined period of time in the second table and the average local mains voltage over a defined period of time in a configurable ratio Of the formula that the lowest value of the local line voltage in the second table is summed with the average local line voltage and the sum is divided by two. A further preferred embodiment of the invention is characterized in that, for the period in which the most recent value of the local mains voltage from the second table is lower than the lower switching voltage value,
These values ​​represent a practical compromise between slight mains voltage fluctuations and mains voltage changes, which allow conclusions to be drawn regarding an energy surplus or an energy deficit in the power grid.
A further preferred embodiment of the invention is distinguished by the fact that, after the receipt of an external switching command, a circuit of the electrical switching module is triggered according to this external command, whereby external switching commands are always to be carried out switching commands which are independent of the local mains voltage a circuit of the electrical switching module In the switching state electrical switching module open or electrical switching module closed.
Further features and advantages of the invention result from the following invention of a preferred embodiment in conjunction with the enclosed drawing, the FIG. 1 showing the device of the invention in a schematic circuit diagram.
1 shows a device 1 with an electrical switching module 2 which is supplied with electrical energy by the power supply 4 via a voltage supply 3, receives switching commands via an input 10, switches according to these commands, and supplies the voltage supply 12 at the switching output 6, Switch state on or off. Connected to the switching output 6 are one or more switchable electrical loads 5.
A contactor is used as the electrical switching module 2, whereby any other electrical switching module 2 known in the art can also be used, for example relays, electrical radio switching modules, etc.
The electrical switching module 2 can be switched between the switching state of the electrical switching module 2, which means open circuit and no voltage supply 12 of the electrical loads 5, and the switching state of the electrical switching module 2, which means a closed circuit and a voltage supply 12 of the electrical loads 5. If an electrical switching module 2 is already in a switched state in which it is to be switched, the circuit, which is, for example, a pull-up or release of a magnetic switch, is carried out, and the module is held in the output state by the circuit.
Preferably the control device 7 stores the values ​​of the local mains voltage with time stamp in a configurable interval 2 to 300 seconds, more preferably 20 seconds, in a first table, the control device 7 stores the individual values ​​of the local mains voltage from the first table which, for example, have short voltage peaks In the form of more meaningful values ​​of the local network voltage for a certain period of time for further processing in a second table; Preferably the control unit 7 sums the most recent one to three values ​​of the local mains voltage, particularly preferably three values ​​of the local mains voltage, of the first table, Dividing this sum by the number of the summed values ​​and storing the result in a second table with the time stamp of the respective first value of the first table, the control device 7 deletes the values ​​of the first table that are no longer required in order to save memory space; Preferably the control device 7 deletes values ​​in the first table which are older than 20 minutes, the control device 7 deletes obsolete values ​​of the second table; Preferably the control device 7 values ​​in the second table which are older than a configurable period of time 1 to 60 days, more preferably 3 days are deleted, the control device 7 determines the average local line voltage, as an average value from the meaningful values ​​of the local line voltage of the second table; Preferably the control unit 7 sums the values ​​of the local mains voltage in the second table and divides the sum by the number of the summed values ​​in order to continuously determine the average local mains voltage, the control unit 7 calculates the higher switching voltage value as a value between the average local mains voltage and the Highest value of the local mains voltage is determined from the meaningful second table, whereby a measured local mains voltage above this higher switching voltage value can be clipped back to an energy excess in the power grid 4; The control device 7 preferably sets the higher switching voltage value as a value between the highest value of the local mains voltage in the second table and the average local mains voltage in a configurable ratio, It is particularly preferred according to the formula that the highest value of the local mains voltage in the second table is summed with the average local mains voltage and the sum is divided by two, the control unit 7 determines the lower switching voltage value as the value between the average local mains voltage and the lowest value Of the local mains voltage, from the meaningful second table, whereby a measured local mains voltage below this lower switching voltage value can be reduced to an energy deficit in the power grid 4; The control device 7 preferably sets the lower switching voltage value as a value between the lowest value of the local mains voltage in the second table and the average local mains voltage in a configurable ratio,

Claims (8)

The external device 11 receives switching commands from the control device 7 from the interface 14 during the energy end customer 1.) 2.) The switching device, The times during which the control device 7 sends the command "electrical switching module 2 closed" is summed and 3.) if the defined minimum switching times are not reached for a defined period, the switching command "electrical switching module 2" to be executed is closed to the input 9 of the control device 7 ". [0008] The invention is not limited to the illustrated embodiments but includes all variants and modifications, Which fall within the scope of the appended claims. claims
1. A device for controlling electrical loads, having an electrical switching module, the electrical switching module having a voltage supply for connecting to a power supply, the electrical switching module (2) for switching between the switching state "electrical switching module (2) open", which is "open circuit and on the switching output (6), the switching circuit (2) has a switching output (6) for connecting electrical consumers (5) (2) closed, which means "closed circuit and a voltage" on the switching output (6), the electrical switching module (2) also has an input (10) for receiving Of switching commands,(2) is open, and the switching state "electrical switching module (2) is closed", and a control device (2) is provided with a control device (7) is connected to the input (10) of the electrical switching module (2) via a second voltage supply (13) for tapping off a local mains voltage from a power supply system. (DE). WIPO Home services World Intellectual Property Organization (7) for determining the local line voltage, the average local line voltage over a defined period of time and the highest value of the local line voltage in a defined period of time,And the control device is designed for sending switching commands on the output to the input of the electrical switching module, characterized in that the control device for determining a higher switching voltage value is configured as a value between the switching device and the switching device (7) when the higher switching voltage value is exceeded, for sending switching commands on the output (8) to the input (10) of the switching circuit. (DE). Home services World Intellectual Property Organization Electrical switching module (2).Characterized in that the control device (7) is designed for determining a higher switching voltage value as a value between the average local mains voltage over the defined period and the highest value of the local mains voltage in the defined period of time and further the control device (7) when the higher switching voltage value is exceeded Of switching commands is formed on the output (8) to the input (10) of the electrical switching module (2).Characterized in that the control device (7) is designed for determining a higher switching voltage value as a value between the average local mains voltage over the defined period and the highest value of the local mains voltage in the defined period of time and further the control device (7) when the higher switching voltage value is exceeded Of switching commands is formed on the output (8) to the input (10) of the electrical switching module (2).(7) is designed to transmit switching commands on the output (8) to the input (10) of the electrical switching module (2) when the higher switching voltage value is exceeded. (DE).(7) is designed to transmit switching commands on the output (8) to the input (10) of the electrical switching module (2) when the higher switching voltage value is exceeded. (DE).
2. The device as claimed in claim 1, characterized in that the control device (7) is designed to determine the lowest value of the local mains voltage in the defined period of time, furthermore to determine a lower switching voltage value as a value between the average local mains voltage over the defined Period and the lowest value of the local mains voltage in the defined time period, and is further designed to transmit switching commands to the electrical switching module (2) when the lower switching voltage value is exceeded.
3. The device as claimed in claim 1, wherein the control device has an input for receiving external switching commands, and the switching commands sent by the control device to the output The input (10) of the electrical switching module (2) and at an interface (14).
The invention relates to a method for controlling electrical loads (5) by means of an electrical switching module (2), which is connected to a power supply network (4), with a switching function with which it is open between the switching state «electrical switching module (2) open», «open circuit and open circuit The switching output (6) is not supplied with a voltage supply (12) of the electrical loads (5), and the switching state "electrical switching module (2)". "Closed circuit" and the switching output (6) Consumer (5) », switches, and the following steps; - determining the local network voltage over a defined period, and - determining the highest value of the local network voltage in the defined period of time, Characterized by the following steps; - determining the higher switching voltage value as a value between the average local mains voltage over the defined period of time and the highest value of the local mains voltage in the defined period, and - switching the electrical switching module (2) when the local mains voltage exceeds the higher switching voltage value.
5. The method as claimed in claim 4, characterized in that, for the period in which the local mains voltage is higher than the higher switching voltage value, the electrical switching module (2) is switched to the "electrical switching module (2)" switching state independently of the output switching state.
6. The method as claimed in claim 5, characterized in that the lowest value of the local mains voltage is determined in the defined period, the lower switching voltage value as the value between the average local mains voltage over the defined period and the lowest value of the local mains voltage in the defined Period, and - if the local mains voltage exceeds the lower switching voltage value, switching of the electrical switching module (2).
7. The method as claimed in claim 6, characterized in that, for the period in which the local mains voltage is lower than the lower switching voltage value, the electrical switching module (2) is switched to the switching state "electrical switching module (2)" independently of the current switching state ,
8. The method as claimed in claim 4, characterized in that, after receipt of external switching commands from external devices (11), a circuit of the electrical switching module (2) is always open between the switching state "electrical switching module (2) open" and the switching state "electrical switching module (2) is closed, independent of the local mains voltage and independently of the current switching state of the electrical switching module (2), is carried out exclusively according to these external switching commands.
CH00977/13A 2010-11-19 2011-10-31 Device and method for controlling electrical consumers. CH706074B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0192410A AT509697B1 (en) 2010-11-19 2010-11-19 DEVICE AND METHOD FOR CONTROLLING ELECTRICAL CONSUMERS
PCT/AT2011/000441 WO2012065199A2 (en) 2010-11-19 2011-10-31 Apparatus and method for controlling electrical loads

Publications (1)

Publication Number Publication Date
CH706074B1 true CH706074B1 (en) 2017-03-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CH00977/13A CH706074B1 (en) 2010-11-19 2011-10-31 Device and method for controlling electrical consumers.

Country Status (4)

Country Link
AT (1) AT509697B1 (en)
CH (1) CH706074B1 (en)
DE (1) DE112011103818B4 (en)
WO (1) WO2012065199A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT513059B1 (en) 2012-06-26 2014-06-15 Roland Ing Ochenbauer Apparatus and method for improving energy use
EP2869422A1 (en) * 2013-11-04 2015-05-06 ABB Technology AG Method and system for monitoring a grid voltage in a low voltage grid
DE102017115735B4 (en) * 2017-07-13 2020-03-05 Moosburger Logistics Network And Development Kg Control switching module for a building control device and such a building control device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070220907A1 (en) * 2006-03-21 2007-09-27 Ehlers Gregory A Refrigeration monitor unit
JP2007267508A (en) * 2006-03-28 2007-10-11 Sanyo Electric Co Ltd Power converter and distributed power supply system
JP4856692B2 (en) * 2008-11-28 2012-01-18 株式会社正興電機製作所 Power supply system and power switching device
US8229602B2 (en) * 2009-01-19 2012-07-24 2D2C, Inc. Electrical power distribution system
US8159084B2 (en) * 2009-05-13 2012-04-17 Briggs & Stratton Corporation Power distribution device

Also Published As

Publication number Publication date
DE112011103818A5 (en) 2013-08-14
DE112011103818B4 (en) 2016-03-24
AT509697A4 (en) 2011-10-15
WO2012065199A3 (en) 2013-01-31
AT509697B1 (en) 2011-11-15
WO2012065199A2 (en) 2012-05-24

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