A novel 72-pulse AC-DC converter based on a 36-pulse converter is designed and implemented in this invention. Combining the outputs of two parallel 18-pulse diode bridges, consisting of nine legs of diode rectifiers, results in a 36-pulse topology. A zero sequence blocking transformer (ZSBT) is designed and applied to the proposed scheme guarantying the independent operation of the two bridges. To achieve a 72-pulse output, a pulse doubling circuit is applied which is inherently a tapped inter-phase transformer. A polygon-connected autotransformer platform is designed and added to the converter, making the proposed scheme suitable for retrofit applications. The proposed solution is a tradeoff among the pulse number, the transformer platform, the complexity of the scheme and the cost. The proposed scheme has an optimized configuration in this regard. The simulation results show that the proposed scheme improves the power quality indices.

A novel 72-pulse AC-DC converter based on a 36-pulse converter is designed and implemented in this invention. Combining the outputs of two parallel 18-pulse diode bridges, consisting of nine legs of diode rectifiers, results in a 36-pulse topology. A zero sequence blocking transformer (ZSBT) is designed and applied to the proposed scheme guarantying the independent operation of the two bridges. To achieve a 72-pulse output, a pulse doubling circuit is applied which is inherently a tapped inter-phase transformer. A polygon-connected autotransformer platform is designed and added to the converter, making the proposed scheme suitable for retrofit applications. The proposed solution is a tradeoff among the pulse number, the transformer platform, the complexity of the scheme and the cost. The proposed scheme has an optimized configuration in this regard. The simulation results show that the proposed scheme improves the power quality indices.

An adapter can include a voltage doubler rectifier, a first stage converter, and a second stage converter. The voltage doubler rectifier can have a switch and can be configured to rectify a received voltage in response to the switch being in a first position, and to rectify and effectively double the received voltage in response to the switch being in a second position. The first stage converter can be coupled to the voltage doubler rectifier and can be a first type of converter. The first type of converter can be either an isolated converter or a non-isolated converter. The second stage converter can be coupled to the first stage converter and can be a second type of converter. The second type of converter can be either the isolated converter or the non-isolated converter. The second type of converter can be different from the first type of converter.

A power supply system includes a power supply assembly, an auxiliary power circuit and a control unit. The power supply assembly converts input power into a first DC power when the input power outputted from an input power source is normal. The auxiliary power circuit includes at least one energy storage unit for providing a second DC power and power converter electrically connected between the energy storage unit and the load for converting the second DC power into an individual auxiliary power. The control unit drives the auxiliary power circuit to provide an overall auxiliary power to the load when the input power is normal and a transient power required by the load is greater than a upper limit rated value of an output power outputted from the power supply assembly, so as to compensate a difference value between the transient power and the upper limit rated value.

A power generation system includes an electric generator mechanically driven by a variable speed kinetic source, a first power conversion system connected with an output of the electric generator, and a second power conversion system connected with the output of the electric generator, wherein the electric generator and power conversion systems are adapted to convert the output of the electric generator to a predetermined direct current (DC) voltage.

An apparatus for converting power includes at least one impedance matching network which receives an electrical signal. The apparatus includes at least one AC to DC converter in communication with the impedance matching network. Also disclosed is a method for powering a load and an apparatus for converting power and additional embodiments of an apparatus for converting power.

An apparatus for converting power includes at least one impedance matching network which receives an electrical signal. The apparatus includes at least one AC to DC converter in communication with the impedance matching network. Also disclosed is a method for powering a load and an apparatus for converting power and additional embodiments of an apparatus for converting power.

According to one aspect of the present disclosure, a method is provided including acts of receiving input Alternating Current (AC) power, providing the input AC power to at least one diode bridge to generate Direct Current (DC) power, providing, by the at least one diode bridge, the DC power to at least one set of diodes, providing, by the at least one set of diodes, the DC power to at least one output reactor, and providing, by the at least one output reactor, the DC power to an output.

A voltage step-up autotransformer topology and an AC-to-DC converter including such an autotransformer are provided. The autotransformer is configured to take, at input, a three-phase AC current (for example 115 VAC with a constant frequency), and to output nine output voltages, which are supplied to an 18-pulse rectifier bridge assembly so as to supply a high DC voltage (for example +270 VDC/270 VDC). These are particularly suitable for AC-to-DC converters in the aeronautical sector.

A voltage step-up autotransformer topology and an AC-to-DC converter including such an autotransformer are provided. The autotransformer is configured to take, at input, a three-phase AC current (for example 115 VAC with a constant frequency), and to output nine output voltages, which are supplied to an 18-pulse rectifier bridge assembly so as to supply a high DC voltage (for example +270 VDC/270 VDC). These are particularly suitable for AC-to-DC converters in the aeronautical sector.