Abstract:
The invention relates to a system for transferring electric energy to a vehicle (81; 91), in particular to a track bound vehicle (81) such as a light rail vehicle or to a road automobile (91) such as a bus, wherein - the system comprises an electric conductor arrangement (connected to 14) for producing an alternating electromagnetic field and for thereby transferring electromagnetic energy to the vehicle, - the conductor arrangement comprises a plurality of consecutive segments (connected to 15), wherein each segment extends along a different section of the path of travel of the vehicle, - the system comprises an alternating current supply for conducting electric energy to a plurality of the segments, wherein the segments are electrically connected in parallel to each other with the alternating current supply, - each segment is coupled to the supply via an associated switching unit (13) adapted to switch on and off the segment by connecting or disconnecting the segment to/from the supply, - each segment is coupled to the associated switching unit (switches 16) via a constant current source (18, 20) adapted to keep the electric current through the segment constant - while the segment is switched on - independently of the electric power which is transferred to one or more vehicles travelling along the segment.
Abstract:
The invention relates to an arrangement for providing a plurality of vehicles (162), in particular track bound vehicles, with electric energy. The arrangement comprises an electric conductor arrangement for producing alternating electromagnetic fields and for thereby transferring electromagnetic energy to the vehicles (162). The conductor arrangement comprises a plurality of consecutive segments (157), wherein each segment (157) comprises at least one phase line (135a, 135b, 135c) for carrying a phase of an alternating current. Corresponding phase lines of neighbouring consecutive segments are connected in series to each other. The arrangement comprises a direct current power supply line for supplying electric energy to the segments (157). A switching device (INV) for producing the alternating current of the conductor arrangement from the current carried by the power supply line is connected to each interface between two neighbouring consecutive segments (157). The arrangement comprises a control device (159) for controlling the operation of the switching devices (152) in such a manner that a first active sector (157b) of the conductor arrangement is operated to produce an electromagnetic field in order to transfer electromagnetic energy to a first vehicle (162a), wherein a first switching device (INV A) is connected to a first end of the first sector (157b) and a second switching device (INV 1) is connected to a second end of the first sector (157b) opposite to the first end, wherein the first (INV A) and second switching device (INV 1) are controlled to operate at a phase shift. A second active sector (157e) is operated to transfer energy to a second vehicle (162b). A third switching device (INV 3) is connected to a first end of the second sector (157e) and a fourth switching device (INV 4) is connected to a second end of the second sector (157e), wherein the third (INV 3) and fourth (INV 4) switching device are controlled to operate at a phase shift. The first to fourth switching device are controlled to produce no voltage across the phase line(s) of further segments (157c, 157d) in between the first (157b) and second (157e) active sector.
Abstract:
The invention relates to a system for transferring electric energy to a vehicle (81), in particular to a track bound vehicle such as a light rail vehicle, wherein - the system comprises an electric conductor arrangement for producing an alternating electromagnetic field and for thereby transferring electromagnetic energy to the vehicle (81), - the conductor arrangement comprises at least one and preferably a plurality of consecutive segments (T1, T2, T3, T4, T5), wherein each segment (T1, T2, T3, T4, T5) extends along a different section of the path of travel of the vehicle (81), - each segment (T1, T2, T3, T4, T5) can be switched on and off separately of any other segment, - the vehicle (81) comprises at least one receiver (1 ) for receiving the electromagnetic energy, - the vehicle (81) comprises at least one signal transmitter (2) adapted to repeatedly or continuously emit an enable signal towards the track, - a signal receptor (D1, D2, D3, D4) is assigned to each segment (T1, T2, T3, T4, T5), wherein the signal receptor (D1, D2, D3, D4) enables the segment to produce the alternating electromagnetic field while the signal receptor (D1, D2, D3, D4) receives the enable signal, wherein a segment control (3) is adapted to stop the operation of the segment when the enable signal is no longer received by the signal receptor (D1, D2, D3, D4) of the segment, - the vehicle (81) comprises a transmitter control arrangement adapted to stop transmitting the enable signal if the receiver and/or if any device combined with the receiver is not to be operated.
Abstract:
The invention relates to a system for transferring electric energy to a vehicle (81; 92), in particular to a track bound vehicle such as a light rail vehicle, wherein the system comprises an electric conductor arrangement (12) for producing an alternating electromagnetic field and for thereby transferring the energy to the vehicle (81; 92), the electric conductor arrangement (12) comprises at least one alternating current line (1, 2, 3), wherein each alternating current line (1, 2, 3) is adapted to carry one phase of an alternating electric current, the conductor arrangement comprises a plurality of consecutive segments (T1, T2, T3, T4, T5), wherein the segments (T1, T2, T3, T4, T5) extend along the path of travel of the vehicle, each segment (T1, T2, T3, T4, T5) comprising one section of each of the at least one alternating current line, the system comprises a direct current supply line for supplying electric energy to the segments (T1, T2, T3, T4, T5), each segment is connected to the supply line via at least one inverter which is adapted to invert a direct current carried by the supply line to an alternating current carried by the at least one alternating current line.
Abstract:
The invention relates to a system for transferring electric energy to a vehicle (81; 91), in particular to a track bound vehicle (81) such as a light rail vehicle or to a road automobile (91) such as a bus, wherein - the system comprises an electric conductor arrangement (3, T) for producing an alternating electromagnetic field and for thereby transferring electromagnetic energy to the vehicle, - the conductor arrangement (3, T) comprises a plurality of segments (T1, T2, T3, T4, T5, T6), wherein each segment (T1, T2, T3, T4, T5, T6) extends along a section of the path of travel of the vehicle, - each segment comprises one line for each phase of an alternating current which is to be carried by the segment in order to produce the electromagnetic field, - the system comprises a current supply (3) for conducting electric energy to the plurality of the segments (T1, T2, T3, T4, T5, T6), wherein the segments (T1, T2, T3, T4, T5, T6) are electrically connected in parallel to each other with the current supply (3), - at least one of the segments (T1, T2, T3, T4, T5, T6) is coupled to the current supply (3) via an associated constant current source (12) adapted to keep the electric current through the segment (T1, T2, T3, T4, T5, T6) constant - while the segment (T1, T2, T3, T4, T5, T6) is operated - independently of the electric power which is transferred to one or more vehicles travelling along the segment (T1, T2, T3, T4, T5, T6), - each constant current source (12) comprises a first inductance (L6P1) and optionally more than one inductances and comprises a first capacitance (C6P) and optionally more than one capacitances, the inductances and the capacitances being adapted to each other and to the voltage at the input side of the constant current source so that a desired constant current is output to the output side, i.e. the side of the segment, - the first inductance (L6P1) is arranged in a line (100) of the constant current source (12) which connects the input side with the output side and at least one junction of the line (100) is connected with the first capacitance(C6P), - the first inductance (L6P1) and the first capacitance (C6P) as well as a second inductance (L6P2), which is formed at least partly by the inherent inductance (LT) of the segment (T), are adapted to each other and to any additional capacitance in the segment can be operated at a corresponding resonance frequency and the reactive power produced by the segment (T) is essentially zero.
Abstract:
The invention relates to an arrangement for providing a vehicle, in particular a track bound vehicle, with electric energy, wherein the arrangement comprises a receiving device (200) adapted to receive an alternating electromagnetic field and to produce an alternating electric current by electromagnetic induction. The receiving device (200) comprises a plurality of windings and/or coils (9, 10, 11) of electrically conducting material, wherein each winding or coil (9, 10, 11) is adapted to produce a separate phase of the alternating electric current.