Transformer systems for electrical power distribution networks A transformer system comprises a distribution transformer configured to receive power from an electrical power distribution network at a distribution voltage and to output electrical power at a regulated voltage. The transformer system also comprises a trimming transformer configured to apply a correction voltage and a correction current, and an energy storage unit configured to receive and store energy from, and provide energy to, the trimming transformer. The transformer system also comprises a power electronics unit configured to control the correction voltage and the correction current applied by the trimming transformer. The power electronics unit is configured to provide one or more of: a voltage regulation effect; a power control effect; a phase balancing effect; a harmonic reduction effect; and a support effect.
An electrical power control apparatus, including: a magnetic core having a plurality of phase limbs for respective phases of electric power, each of the phase limbs being interconnected to the other phase limbs at respective ends of the limb; primary windings around the respective phase limbs to receive input electrical energy in the form of input signals for the respective electrical phases and generate corresponding magnetic fluxes in the phase limbs; secondary windings around the respective phase limbs to generate output electrical energy in the form of output signals for respective electrical phases from magnetic fluxes in the phase limbs; and control windings around respective portions of the magnetic core to receive control signals for respective electrical phases to modify the magnetic fluxes in the respective phase limbs in order to modify the output signals generated from the secondary windings so that the output signals have one or more electrical attributes that satisfy respective predetermined criteria.
H02P 13/12 - Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by varying magnetic bias
H02M 1/12 - Arrangements for reducing harmonics from AC input or output
H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
H01F 29/14 - Variable transformers or inductances not covered by group with variable magnetic bias
3.
Electric Power Converter for a Photovoltaic Energy Source
An electric power converter for a photovoltaic energy source, including: an inverter to receive a dynamically changing DC signal generated by the photovoltaic energy source and to generate a corresponding dynamically changing AC signal having a frequency substantially equal to a mains supply frequency; and an electromagnetic apparatus, including: a magnetic core and a plurality of windings around the magnetic core. The windings include: one or more input windings to receive the dynamically changing AC signal as an AC input; one or more output windings to provide an AC output signal; and control windings configured to control electromagnetic coupling between the input and output windings; and a control component configured to dynamically control electrical currents through the control windings so that the electrical characteristics of the AC output signal are relatively constant despite the dynamically changing AC signal and include a fundamental frequency equal to the mains supply frequency.
H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
4.
MULTI-PHASE ELECTRICAL TRANSFORMER AND POWER CONTROL APPARATUS
An electrical power control apparatus, including: a magnetic core having a plurality of phase limbs for respective phases of electric power, each of the phase limbs being interconnected to the other phase limbs at respective ends of the limb; primary windings around the respective phase limbs to receive input electrical energy in the form of input signals for the respective electrical phases and generate corresponding magnetic fluxes in the phase limbs; secondary windings around the respective phase limbs to generate output electrical energy in the form of output signals for respective electrical phases from magnetic fluxes in the phase limbs; and control windings around respective portions of the magnetic core to receive control signals for respective electrical phases to modify the magnetic fluxes in the respective phase limbs in order to modify the output signals generated from the secondary windings so that the output signals have one or more electrical attributes that satisfy respective predetermined criteria.
H02P 13/12 - Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by varying magnetic bias
H02M 5/18 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers for conversion of waveform
5.
MULTI-PHASE ELECTRICAL TRANSFORMER AND POWER CONTROL APPARATUS
An electrical power control apparatus, including: a magnetic core having a plurality of phase limbs for respective phases of electric power, each of the phase limbs being interconnected to the other phase limbs at respective ends of the limb; primary windings around the respective phase limbs to receive input electrical energy in the form of input signals for the respective electrical phases and generate corresponding magnetic fluxes in the phase limbs; secondary windings around the respective phase limbs to generate output electrical energy in the form of output signals for respective electrical phases from magnetic fluxes in the phase limbs; and control windings around respective portions of the magnetic core to receive control signals for respective electrical phases to modify the magnetic fluxes in the respective phase limbs in order to modify the output signals generated from the secondary windings so that the output signals have one or more electrical attributes that satisfy respective predetermined criteria.
H02P 13/12 - Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by varying magnetic bias
H02M 1/12 - Arrangements for reducing harmonics from AC input or output
H02M 5/18 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers for conversion of waveform
G05F 5/00 - Systems for regulating electric variables by detecting deviations in the electric input to the system and thereby controlling a device within the system to obtain a regulated output
6.
ELECTRIC POWER CONVERTER FOR A PHOTOVOLTAIC ENERGY SOURCE
An electric power converter for a photovoltaic energy source, including: an inverter to receive a dynamically changing DC signal generated by the photovoltaic energy source and to generate a corresponding dynamically changing AC signal having a frequency substantially equal to a mains supply frequency; and an electromagnetic apparatus, including: a magnetic core and a plurality of windings around the magnetic core. The windings include: one or more input windings to receive the dynamically changing AC signal as an AC input; one or more output windings to provide an AC output signal; and control windings configured to control electromagnetic coupling between the input and output windings; and a control component configured to dynamically control electrical currents through the control windings so that the electrical characteristics of the AC output signal are relatively constant despite the dynamically changing AC signal and include a fundamental frequency equal to the mains supply frequency.
An electric power converter for a photovoltaic energy source, including: an inverter to receive a dynamically changing DC signal generated by the photovoltaic energy source and to generate a corresponding dynamically changing AC signal having a frequency substantially equal to a mains supply frequency; and an electromagnetic apparatus, including: a magnetic core and a plurality of windings around the magnetic core. The windings include: one or more input windings to receive the dynamically changing AC signal as an AC input; one or more output windings to provide an AC output signal; and control windings configured to control electromagnetic coupling between the input and output windings; and a control component configured to dynamically control electrical currents through the control windings so that the electrical characteristics of the AC output signal are relatively constant despite the dynamically changing AC signal and include a fundamental frequency equal to the mains supply frequency.
An electrical power distribution network includes: a plurality of electrical power control apparatuses, each of which include one or more signal conversion components receiving electrical power in the form of a first signal and generating a corresponding second signal, a controller that controls operation of the signal conversion components, electrical power generation components acting as sources of electrical power to at least some of the electrical power control apparatuses, and electrical power consumption components acting as sinks of electrical power from at least some of the electrical power control apparatuses. The electrical power control apparatuses operate autonomously but are interconnected so that the electrical power control apparatuses collectively maintain the voltages and frequencies of electrical power signals flowing through the electrical power distribution network at target values to compensate for variations in the sinks and/or sources of electrical power.
H02J 3/28 - Arrangements for balancing the load in a network by storage of energy
H01F 29/14 - Variable transformers or inductances not covered by group with variable magnetic bias
H02J 3/01 - Arrangements for reducing harmonics or ripples
H02J 3/18 - Arrangements for adjusting, eliminating or compensating reactive power in networks
H02M 5/10 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers
H02M 5/27 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means for conversion of frequency
G05F 1/335 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices with plural windings through which current to be controlled is conducted on different cores
H02M 5/16 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers for conversion of frequency
H02M 5/04 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
G05F 1/325 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices with specific core structure, e.g. gap, aperture, slot, permanent magnet
G05F 1/33 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices with plural windings through which current to be controlled is conducted
H01F 38/04 - Adaptations of transformers or inductances for specific applications or functions for non-linear operation for frequency changing
H02M 5/451 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or frequency
H02M 5/297 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal for conversion of frequency
H02M 5/42 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
An electric power distribution controller configured to be communicatively coupled to other instances of the electric power distribution controller to form a network of electrical power distribution controllers that collectively control the flow of electric power in an electric power distribution network to satisfy requests for electric power with one or more specified electric power attributes selected from: power amount, power quality, and attributes of electric power generation.
H02J 3/06 - Controlling transfer of power between connected networksControlling sharing of load between connected networks
H02J 3/14 - 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
G05F 1/32 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices
G05F 5/00 - Systems for regulating electric variables by detecting deviations in the electric input to the system and thereby controlling a device within the system to obtain a regulated output
H02M 5/00 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output
a heterodyning component configured to generate a corresponding heterodyned signal having frequency components corresponding to a sum and a difference of the first fundamental frequency and a reference frequency;
(ii) to receive a signal representing the first input voltage, and to generate a corresponding virtual air gap control signal to determine the electrical current in the control windings of the at least one virtual air gap transformer.
G05F 1/325 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices with specific core structure, e.g. gap, aperture, slot, permanent magnet
G05F 1/32 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices
H02J 3/01 - Arrangements for reducing harmonics or ripples
H02J 3/28 - Arrangements for balancing the load in a network by storage of energy
H01F 29/14 - Variable transformers or inductances not covered by group with variable magnetic bias
H02J 3/18 - Arrangements for adjusting, eliminating or compensating reactive power in networks
H02M 5/10 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers
H02M 5/27 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means for conversion of frequency
G05F 1/335 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices with plural windings through which current to be controlled is conducted on different cores
H02M 5/16 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers for conversion of frequency
H02M 5/04 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
G05F 1/325 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices with specific core structure, e.g. gap, aperture, slot, permanent magnet
G05F 1/33 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices with plural windings through which current to be controlled is conducted
H01F 38/04 - Adaptations of transformers or inductances for specific applications or functions for non-linear operation for frequency changing
H02M 5/451 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or frequency
H02M 5/297 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal for conversion of frequency
H02M 5/42 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
wherein the electrical power supply system receives input electrical energy in the form of the first input signal having the first input fundamental frequency and the first input voltage, and generates corresponding output electrical energy in the form of a corresponding first output signal of the target frequency and the target output voltage.
G05F 1/325 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices with specific core structure, e.g. gap, aperture, slot, permanent magnet
An electrical power distribution network, including a plurality of electrical power control apparatuses, each including : Signal conversion components in order to convert the received signal to have a desirable signal having a second fundamental frequency and characteristic voltage; and a controller that controls operation of the signal conversion components to determine an output voltage and output frequency of the electrical power control apparatus; electrical power generation components acting as sources of electrical power and electrical power consumption components acting as sinks of electrical power to at least some of the electrical power control apparatuses; and wherein the electrical power control apparatuses operate autonomously but are interconnected such that an output of each of the electrical power control apparatuses is connected to an input of at least one corresponding electrical power control apparatus and to one or more of the sinks and/or sources of electrical power so that the electrical power control apparatuses collectively maintain the voltages and frequencies of electrical power signals.
H02M 5/16 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers for conversion of frequency
H02M 5/27 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means for conversion of frequency
H02M 5/297 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal for conversion of frequency
H02M 5/451 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or frequency
An electrical power supply system, including: at least one virtual air gap transformer, including at least one primary winding, at least one secondary winding, and one or more control windings to control the electromagnetic coupling between the primary and secondary windings; an input port configured to receive a first input signal having a first input fundamental frequency and a first input voltage; and a control component configured: to receive a signal representing the first input voltage and the first input fundamental frequency of the first input signal, and to generate a corresponding virtual air gap control signal to determine the electrical current in the control windings of the at least one virtual air gap transformer, such that a target output voltage of a target output frequency is generated at the secondary windings; wherein the electrical power supply system receives input electrical energy in the form of the first input signal having the first input fundamental frequency and the first input voltage, and generates corresponding output electrical energy in the form of a corresponding first output signal of the target frequency and the target output voltage.
G05F 1/32 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices
patents
