CA2332106A1 - Method for producing electricity with a time-varying voltage - Google Patents
Method for producing electricity with a time-varying voltage Download PDFInfo
- Publication number
- CA2332106A1 CA2332106A1 CA002332106A CA2332106A CA2332106A1 CA 2332106 A1 CA2332106 A1 CA 2332106A1 CA 002332106 A CA002332106 A CA 002332106A CA 2332106 A CA2332106 A CA 2332106A CA 2332106 A1 CA2332106 A1 CA 2332106A1
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- CA
- Canada
- Prior art keywords
- electricity
- voltage
- section
- shape
- time
- 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.)
- Abandoned
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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
- 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
- H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
-
- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Feedback Control In General (AREA)
Abstract
The present invention pertains to the field of power generation and electric al transmission lines and may be used for determining the electricity produced, transmitted and used. This invention provides a more reliable definition of the electricity source, of the electricity user and of the section in the electric circuit or electrical transmission line through which electricity i s supplied from the source to the user. To this end, upon the generation of a non-sinusoidal voltage, a portion at least of a segment of the voltage curve has the shape of a segment of a line formed by the surface of a right circul ar cone and the secant plane that does not intersect the summit thereof. The shape of the curve may be represented by different fragments of the segment and may be modified periodically or non-periodically.
Description
METHOD FOR PRODUCING ELECTRICITY
WITH A TIME-VARYING 'fOLTAGE
Field of the Invention s The present invention relates to powe;r production and electric communication and is useful in identifying the produced electricity.
Background of the Invention As of now, identification of the produced product has gained wide acceptance in various fields of national economy.
Within the scope of this invention, "identification" refers to determining the compliance of both a batch of objects and a single object (product) with its unique identification mark. The identification can be effected by applying an identifier (a mark) on a product or by introducing an identifier into the product, e.g, by introducing into electricity an information signal identifying the producer of the electricity.
The term "identification" is used in this meaning throughout the description, including the claims.
Great use is made of the product identification by labels containing bar, symbolic, numeric and alphabetic codes, and by identity transmitters configured as oscillating LC loops. A code connbination of letters, digits, and a tuning frequency of the LC loop represent the identifier which uniquely defines the object.
The aforementioned identifiers and methods of their application on ' objects are described in the specifications to the following RU patents:
No.2045780, Int.Cl. G 06 K 11/00, publ. 10.10.95;
No.2074696, Int.Cl. A 61 H 39/00, publ. 10.03.97;
No.2102246, Int.CI. B 42 D 15/00, publ. 20.01.98;
No.2106689, Int.Cl. G 06 K 17/00, pubI. 10.03.98;
No.2I12958, Int.Cl. G O1 N 21/64, publ. IO-.06.98, 3o and in the descriptions to the following Certificates for Utility Models:
No.0005883, Int.Cl. G 09 F 3/02, publ. 16.01.98, .
WITH A TIME-VARYING 'fOLTAGE
Field of the Invention s The present invention relates to powe;r production and electric communication and is useful in identifying the produced electricity.
Background of the Invention As of now, identification of the produced product has gained wide acceptance in various fields of national economy.
Within the scope of this invention, "identification" refers to determining the compliance of both a batch of objects and a single object (product) with its unique identification mark. The identification can be effected by applying an identifier (a mark) on a product or by introducing an identifier into the product, e.g, by introducing into electricity an information signal identifying the producer of the electricity.
The term "identification" is used in this meaning throughout the description, including the claims.
Great use is made of the product identification by labels containing bar, symbolic, numeric and alphabetic codes, and by identity transmitters configured as oscillating LC loops. A code connbination of letters, digits, and a tuning frequency of the LC loop represent the identifier which uniquely defines the object.
The aforementioned identifiers and methods of their application on ' objects are described in the specifications to the following RU patents:
No.2045780, Int.Cl. G 06 K 11/00, publ. 10.10.95;
No.2074696, Int.Cl. A 61 H 39/00, publ. 10.03.97;
No.2102246, Int.CI. B 42 D 15/00, publ. 20.01.98;
No.2106689, Int.Cl. G 06 K 17/00, pubI. 10.03.98;
No.2I12958, Int.Cl. G O1 N 21/64, publ. IO-.06.98, 3o and in the descriptions to the following Certificates for Utility Models:
No.0005883, Int.Cl. G 09 F 3/02, publ. 16.01.98, .
No.400646I, Int.Cl. G 06 F 3/02, publ. 16.04.98.
However, the above identifiers and methods are unsuitable for identifying the produced, transmitted, distributed and consumed electricity in view of the peculiarity of the latter as a product.
Within the scope of this invention, "electricity" refers to a combination of phenomena which exhibit existence, movement and interaction of charged particles (through electromagnetic field). As a variant, electricity can refer to electric power [4].
The term "electricity" is used in this meaning throughout the io description, including the claims.!
A conventional method for producing electricity with a varying voltage is taught in the description to SU Inventor's Certificate No.390626 for a method for remote control of a power plant switching unit, published 11.07.73, Int.Cl. H 02 J I3/00, which involves providing a code series for removing voltage from a power transmission line. The prior art provides remote disconnection of electric plants in emergencies and abnormal situations and may be interpreted as a method for identifying a failure in a power transmission line.
The prior art, however, is not very reliable in determining the 2o source, distributor and consumer of electricity, as well as the section of the electrical circuit and the power transmission line over which the electricity is supplied from the producer to the .consumer in the electrical power system.
Within the scope of this invention, "electrical power system" means a combination of sources of electricity, e.g. power stations, which are connected by power transmission lines and jointly supply electric power to consumers [1J.
The term "electrical power system" is. used in this meaning throughout the description.
'Within the scope of this invention, "source of electricity" refers to a plant which produces electric power. Depending on the energy source, there are distinguished thermal power stations (steam power plants, gas-turbine power plants, nuclear power plants, etc.), hydropower stations, solar power stations, geothermal power stations, tidal and wind-mill electric generating plants, chemical cells, etc.
The term "source of electricity" is used in this meaning throughout the description.
s The description to SU Inventor's Certificate No.547917 for a method for controlling distributed objects connected to a public supply network, published 25.02.77, Int.Cl. H OZ 1 13/00, discloses a method for producing electricity with a varying voltage, which involves generating a short-duration circular control signal in the form of unidirectional pulses, the repetition rate of which coincides with the ;supply frequency.
The prior method provides the remote circular control of distributed objects over power transmission lines in emergencies and abnormal situations and may be interpreted as a method for identifying a failure or defaulting operations in the power transmission line or the ~s controlled object.
The prior art, however, is not very reliable in determining the source, distributor and consumer of electricity, as well as the section of the electrical circuit and the power transmission line over which the electricity is supplied from the producer to the consumer in the electrical 2o power system.
- Most closely approaching the present method in terms of its technical matter (hereinafter referred to as the prototype) is a method for producing a time-varying electricity, including generating a nonsinusoidal voltage (2].
25 The nonsinusoidal voltage is generated through a nonsinusoidal distribution of magnetic induction within the air gap owing to the presence of teeth and recesses in the armature of the generator, the response of the armature, etc.
The prototype, however, is not very reliable in determining the 30 source, distributor and consumer of electricity, and the section of the electrical circuit and the power transmission line over which electricity is supplied from the producer to the consumer in the electrical power system.
However, the above identifiers and methods are unsuitable for identifying the produced, transmitted, distributed and consumed electricity in view of the peculiarity of the latter as a product.
Within the scope of this invention, "electricity" refers to a combination of phenomena which exhibit existence, movement and interaction of charged particles (through electromagnetic field). As a variant, electricity can refer to electric power [4].
The term "electricity" is used in this meaning throughout the io description, including the claims.!
A conventional method for producing electricity with a varying voltage is taught in the description to SU Inventor's Certificate No.390626 for a method for remote control of a power plant switching unit, published 11.07.73, Int.Cl. H 02 J I3/00, which involves providing a code series for removing voltage from a power transmission line. The prior art provides remote disconnection of electric plants in emergencies and abnormal situations and may be interpreted as a method for identifying a failure in a power transmission line.
The prior art, however, is not very reliable in determining the 2o source, distributor and consumer of electricity, as well as the section of the electrical circuit and the power transmission line over which the electricity is supplied from the producer to the .consumer in the electrical power system.
Within the scope of this invention, "electrical power system" means a combination of sources of electricity, e.g. power stations, which are connected by power transmission lines and jointly supply electric power to consumers [1J.
The term "electrical power system" is. used in this meaning throughout the description.
'Within the scope of this invention, "source of electricity" refers to a plant which produces electric power. Depending on the energy source, there are distinguished thermal power stations (steam power plants, gas-turbine power plants, nuclear power plants, etc.), hydropower stations, solar power stations, geothermal power stations, tidal and wind-mill electric generating plants, chemical cells, etc.
The term "source of electricity" is used in this meaning throughout the description.
s The description to SU Inventor's Certificate No.547917 for a method for controlling distributed objects connected to a public supply network, published 25.02.77, Int.Cl. H OZ 1 13/00, discloses a method for producing electricity with a varying voltage, which involves generating a short-duration circular control signal in the form of unidirectional pulses, the repetition rate of which coincides with the ;supply frequency.
The prior method provides the remote circular control of distributed objects over power transmission lines in emergencies and abnormal situations and may be interpreted as a method for identifying a failure or defaulting operations in the power transmission line or the ~s controlled object.
The prior art, however, is not very reliable in determining the source, distributor and consumer of electricity, as well as the section of the electrical circuit and the power transmission line over which the electricity is supplied from the producer to the consumer in the electrical 2o power system.
- Most closely approaching the present method in terms of its technical matter (hereinafter referred to as the prototype) is a method for producing a time-varying electricity, including generating a nonsinusoidal voltage (2].
25 The nonsinusoidal voltage is generated through a nonsinusoidal distribution of magnetic induction within the air gap owing to the presence of teeth and recesses in the armature of the generator, the response of the armature, etc.
The prototype, however, is not very reliable in determining the 30 source, distributor and consumer of electricity, and the section of the electrical circuit and the power transmission line over which electricity is supplied from the producer to the consumer in the electrical power system.
Summary of the Invention The object of the invention is to improve reliability of determining the source (power station), the consumer of electricity, the section of the electrical circuit and the power transmission line over which electricity is s supplied from the source to the consumer in the electrical power system, as well as the distributor of electricity (a distributing unit) among consumers or networks, using identification of the electricity as a product.
The object of the invention can be attained by a method for 1o producing electricity with a time-varying voltage, including generating a nonsinusoidal voltage and varying the shape of at least one section of the voltage waveform with time.
This provides identification of electricity as a product.
?he method for producing electricity with a time-varying 1s nonsinusoidal voltage may include varying the shape of the voltage waveform with time in a discrete, or periodic, or aperiodic manner. This will enhance the reliability of determining the source of electricity.
The method for producing electricity with a time-varying nonsinusoidal voltage may include providing at least a portion of the 2o voltage waveform in the shape selected from the group containing fragments ofv a polygon, a conic section of a right circular cone. This will improve the reliability of determining the source of electricity and the section of the electrical circuit or the power transmission line.
Analysis of the background art has shown that the combination of 25 technical features recited in the claims is unknown. Thus, it can be concluded that the invention observes the novelty condition.
To check the compliance of the present invention with the inventive step condition, the additional search has been carried out in order to find prior technical solutions comprising the features which coincide with the 3o features of the invention distinguishing the same from the prototype. Tt has been established that the present invention does not appear to be obvious from the state of the art. I-~ence, the present invention observes the inventive step condition.
Detailed Description of Preferred Embodiments A method for producing electricity with a time-varying voltage in i accordance with the present invention and its embodiment will be further explained with reference to the accompanying drawing which illustrates s waveforms of a nonsinusoidal voltage.
i Period T~ of a nonsinusoidal voltage is broken into sections (I/4T, I/2T and so forth), while the shape of the voltage waveform and its variation at these sections with time ( I is a voltage waveform at time t, 2 is a voltage waveform at time t+1) identify the sources of electricity (power stations), the electricity consumers, the sections of the electrical circuit and the power transmission lines over which the electricity is supplied from the source to the consumer in the electrical power system, and the distributors (distributing units) of electricity among the consumers or networks. The shape of the voltage waveform at any section 1s may be varied with time in a discrete, or periodic, or aperiodic manner.
Sections on the voltage waveform may be in the shape of a component of a polygon or a conic section 3 of a right circular cone.
Within the scope of the invention, "conic section" refers to a line formed by a surface of a right circular cone and a secant plane which 2o does not, pass through the cone vertex.
The term "conic section" is used is this meaning throughout the description, including the claims.
Feasibility of the present invention is proved by information of analogous methods and apparatuses for implementing the method, 2s disclosed in the specifications to the following SU inventions:
an apparatus for providing a remote' signal to switch a sectionalizing device (SU Inventor's Certificate No.352352, TPC H 02 J
13/00, publ. 21.09.72);
a method for generating an ac circuit switching command (SU
30 Inventor's Certificate No.433558, Int. Cl. 1EI 02 J 13/00, publ.
25.06.1974);
an apparatus for communication among electrical networks (SU
Inventor's Certificate No.542295, Int.Cl. H 02 J 13/00, publ.
05.01. 1977);
a method for transmitting movable object remote control commands (SU Inventor's Certificate No.801190, Int.Cl. H Oz J 13/00, publ.
30.01.1981);
an apparatus for remote signaling (SU Inventor's Certificate No_811502, Int.Cl. H 02 J 13100, publ. 07.03.198I), and in the description to RU patent application for a method for 1o transmitting broadcast information (Application No.94033147, Int.Cl. H
04 Q 7/06, publ. 20.02,1988) and the description to RU patent for an apparatus for identifying and counting casting blocks in a convergent process flow (RU patent No.2101764, Int.Cl. G 06 V 7/04, publ.
10.01.1998).
i5 Furthermore, the generators of electricity identification features (e.g, microwave generators) will be compact as the power of such a generator is many times smaller than that of the pulses [3j.
By way of example, with the pulse having the duration of lOp.c, the power of 100 kW and the repetition rate of 200 Hz, the generator will 20 have a power of no more than 200 W.
Therefore, the use of the apparatus will ensure the attainment of the object of the invention.
References cited:
l.Postnikov N.P., Rubashov G.M. Poaver Supply of Industrial Z5 Enterprises: Manual for technical colleges. L. Leningrad Division, 1980, 376 pages.
2.Popov V. S. Theoretical Electrical Engineering. . Manual for technical colleges. 3'a edition, suppl. and amend., M. Energoizdat, 1990, S 54 pages.
3o 3.Zherebtsov I.P. Fundamentals of Electrical Engineering, 5"' edition, suppl. and amend. L., Energoizdat, Leningrad Division, 1989, 352 pages.
4. Sovetskii entsiklopedicheskii slovar (Soviet Encyclopedic Dictionary), M.: Sov.Entsiklopediya, I98I, 1554 pales.
The object of the invention can be attained by a method for 1o producing electricity with a time-varying voltage, including generating a nonsinusoidal voltage and varying the shape of at least one section of the voltage waveform with time.
This provides identification of electricity as a product.
?he method for producing electricity with a time-varying 1s nonsinusoidal voltage may include varying the shape of the voltage waveform with time in a discrete, or periodic, or aperiodic manner. This will enhance the reliability of determining the source of electricity.
The method for producing electricity with a time-varying nonsinusoidal voltage may include providing at least a portion of the 2o voltage waveform in the shape selected from the group containing fragments ofv a polygon, a conic section of a right circular cone. This will improve the reliability of determining the source of electricity and the section of the electrical circuit or the power transmission line.
Analysis of the background art has shown that the combination of 25 technical features recited in the claims is unknown. Thus, it can be concluded that the invention observes the novelty condition.
To check the compliance of the present invention with the inventive step condition, the additional search has been carried out in order to find prior technical solutions comprising the features which coincide with the 3o features of the invention distinguishing the same from the prototype. Tt has been established that the present invention does not appear to be obvious from the state of the art. I-~ence, the present invention observes the inventive step condition.
Detailed Description of Preferred Embodiments A method for producing electricity with a time-varying voltage in i accordance with the present invention and its embodiment will be further explained with reference to the accompanying drawing which illustrates s waveforms of a nonsinusoidal voltage.
i Period T~ of a nonsinusoidal voltage is broken into sections (I/4T, I/2T and so forth), while the shape of the voltage waveform and its variation at these sections with time ( I is a voltage waveform at time t, 2 is a voltage waveform at time t+1) identify the sources of electricity (power stations), the electricity consumers, the sections of the electrical circuit and the power transmission lines over which the electricity is supplied from the source to the consumer in the electrical power system, and the distributors (distributing units) of electricity among the consumers or networks. The shape of the voltage waveform at any section 1s may be varied with time in a discrete, or periodic, or aperiodic manner.
Sections on the voltage waveform may be in the shape of a component of a polygon or a conic section 3 of a right circular cone.
Within the scope of the invention, "conic section" refers to a line formed by a surface of a right circular cone and a secant plane which 2o does not, pass through the cone vertex.
The term "conic section" is used is this meaning throughout the description, including the claims.
Feasibility of the present invention is proved by information of analogous methods and apparatuses for implementing the method, 2s disclosed in the specifications to the following SU inventions:
an apparatus for providing a remote' signal to switch a sectionalizing device (SU Inventor's Certificate No.352352, TPC H 02 J
13/00, publ. 21.09.72);
a method for generating an ac circuit switching command (SU
30 Inventor's Certificate No.433558, Int. Cl. 1EI 02 J 13/00, publ.
25.06.1974);
an apparatus for communication among electrical networks (SU
Inventor's Certificate No.542295, Int.Cl. H 02 J 13/00, publ.
05.01. 1977);
a method for transmitting movable object remote control commands (SU Inventor's Certificate No.801190, Int.Cl. H Oz J 13/00, publ.
30.01.1981);
an apparatus for remote signaling (SU Inventor's Certificate No_811502, Int.Cl. H 02 J 13100, publ. 07.03.198I), and in the description to RU patent application for a method for 1o transmitting broadcast information (Application No.94033147, Int.Cl. H
04 Q 7/06, publ. 20.02,1988) and the description to RU patent for an apparatus for identifying and counting casting blocks in a convergent process flow (RU patent No.2101764, Int.Cl. G 06 V 7/04, publ.
10.01.1998).
i5 Furthermore, the generators of electricity identification features (e.g, microwave generators) will be compact as the power of such a generator is many times smaller than that of the pulses [3j.
By way of example, with the pulse having the duration of lOp.c, the power of 100 kW and the repetition rate of 200 Hz, the generator will 20 have a power of no more than 200 W.
Therefore, the use of the apparatus will ensure the attainment of the object of the invention.
References cited:
l.Postnikov N.P., Rubashov G.M. Poaver Supply of Industrial Z5 Enterprises: Manual for technical colleges. L. Leningrad Division, 1980, 376 pages.
2.Popov V. S. Theoretical Electrical Engineering. . Manual for technical colleges. 3'a edition, suppl. and amend., M. Energoizdat, 1990, S 54 pages.
3o 3.Zherebtsov I.P. Fundamentals of Electrical Engineering, 5"' edition, suppl. and amend. L., Energoizdat, Leningrad Division, 1989, 352 pages.
4. Sovetskii entsiklopedicheskii slovar (Soviet Encyclopedic Dictionary), M.: Sov.Entsiklopediya, I98I, 1554 pales.
Claims (4)
1. A method for producing electricity with a time-varying voltage, including generating a nonsinusoidal voltage, characterized in that at least one section of the voltage waveform is in the shape of a part of a line formed by a surface of a right circular cone and a secant plane which does not pass through the cone vertex.
2. The method of claim 1 wherein at least one section of the voltage waveform is in the shape of a different fragment of a conic section of a right circular cone.
3. The method of any one of claims 1 and 2 wherein the shape of at least one section of the voltage waveform is varied in an aperiodic manner.
4. The method of any one of claims 1 to 3 wherein the shape of at least one section of the voltage waveform is varied in a periodic manner.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU99105001/09A RU2142190C1 (en) | 1999-03-11 | 1999-03-11 | Time-dependent ac power generation process |
| RU99105001 | 1999-03-11 | ||
| PCT/RU2000/000079 WO2000054388A1 (en) | 1999-03-11 | 2000-03-13 | Method for generating electricity with time-alternating voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2332106A1 true CA2332106A1 (en) | 2000-09-14 |
Family
ID=20217055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002332106A Abandoned CA2332106A1 (en) | 1999-03-11 | 2000-03-13 | Method for producing electricity with a time-varying voltage |
Country Status (3)
| Country | Link |
|---|---|
| CA (1) | CA2332106A1 (en) |
| RU (1) | RU2142190C1 (en) |
| WO (1) | WO2000054388A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU390626A1 (en) * | 1968-11-18 | 1973-07-11 | METHOD FOR REMOTE CONTROL OF ELECTRO-INSTALLATION SWITCHING DEVICES | |
| SU547917A1 (en) * | 1975-04-07 | 1977-02-25 | Предприятие П/Я В-8930 | The control method of dispersed objects connected to the public electrical network |
| SU758387A1 (en) * | 1978-07-07 | 1980-08-23 | Mo I Inzh Selskokhozyajs | Method of control of distributed objects via power transmission line wires |
| DE3343455A1 (en) * | 1983-12-01 | 1985-06-13 | Philips Patentverwaltung Gmbh, 2000 Hamburg | CIRCUIT ARRANGEMENT FOR DETECTING THE VERTICAL BLANK GAPS IN AN IMAGE SIGNAL |
| US4785350A (en) * | 1987-11-12 | 1988-11-15 | North American Philips Consumer Electronics Corp. | TV input source identifier |
| US5404355A (en) * | 1992-10-05 | 1995-04-04 | Ericsson Ge Mobile Communications, Inc. | Method for transmitting broadcast information in a digital control channel |
-
1999
- 1999-03-11 RU RU99105001/09A patent/RU2142190C1/en not_active IP Right Cessation
-
2000
- 2000-03-13 CA CA002332106A patent/CA2332106A1/en not_active Abandoned
- 2000-03-13 WO PCT/RU2000/000079 patent/WO2000054388A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| RU2142190C1 (en) | 1999-11-27 |
| WO2000054388A1 (en) | 2000-09-14 |
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