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41. 发明专利

GB0620463D0 Power distribution systems 未知
公开(公告)号：GB0620463D0
公开(公告)日：2006-11-22
申请号：GB0620463
申请日：2006-10-16
申请人： CONVERTEAM LTD
摘要： The present invention provides a power distribution system that can be used in naval ships and submarines. The power distribution system includes a first power generation system including at least one power source (13,14,15) for supplying power to a first service distribution system. The first service distribution system includes at least one dc distribution busbar (25) for carrying a distribution voltage and a distribution current and at least one switchboard (16) that includes protective switchgear with contacts. A zonal power distribution sub-system is also provided and includes a zonal power supply unit (23) for supplying power to at least one electrical load and a zonal energy store (22) connected to the at least one switchboard (16) of the first service distribution system for supplying power to the zonal power supply unit (23). The at least one power source (13,14,15) is regulated according to a power source foldback and stabilising characteristic and a power source starting characteristic. The at least one electrical load is regulated according to a load shedding and stabilising characteristic.

42. 发明专利

GB2421365A Matrix converter with freewheel diode between DC voltage lines 未知
公开(公告)号：GB2421365A
公开(公告)日：2006-06-21
申请号：GB0427626
申请日：2004-12-16
申请人： ALSTOM , ALSTOM POWER CONVERSION LTD , CONVERTEAM LTD
发明人： CRANE ALLAN DAVID
IPC分类号： H02M7/217 , H02M7/162 , H02M7/219
摘要： The present invention provides a matrix converter 4 that can be used as part of a two-stage power converter. The matrix converter 4 has three ac three ac voltage lines AC1, AC2 and AC3 and two dc voltage lines DC1 and DC2. An array of six semiconductor switches 10a to 10f are arranged such that each of the three ac voltage lines AC1, AC2 and AC3 can be connected to one of the two dc voltage lines DC1 and DC2 when the associated switch is closed. A freewheel path (e.g. freewheel diode 24) between the two dc voltage lines DC1 and DC2, provides a fifth state of operation when all the switches 10a to 10f are open, and provides a natural path for DC current, preventing overvoltage (see figure 6).

43. 发明专利

BRPI0718083A2 未知
公开(公告)号：BRPI0718083A2
公开(公告)日：2014-08-19
申请号：BRPI0718083
申请日：2007-09-24
申请人： CONVERTEAM LTD
发明人： CLARK PAUL EATON
IPC分类号： H02K1/16
摘要： An improved stator (28) for rotating electrical machines with single-layer stator windings consisting of a plurality of pre-formed coils (22) of equal angular pitch. The stator (28) has a first cylindrical surface in which a plurality of circumferentially spaced winding slots (30) are formed and in which the axially-extending winding runs (24) of the pre-formed coils (22) are positioned. The two winding runs (24) of each coil (22) will each be positioned in a winding slot (30) and the two winding slots (30) that receive the coil (22) define a winding slot pair. The improvement arises from the fact that the winding slots (30) of each winding slot pair extend into the stator (28) in substantially parallel directions. This means that the axially-extending winding runs (24) of each pre-formed coil (22) may also be substantially parallel and need not be angled towards each other. This enables the stator (28) to be easily wound as each pre-formed coil (22) may be simply and easily slotted into a parallel winding slot pair.

44. 发明专利

GB2444528B Methods for synchronising a plurality of generators 未知
公开(公告)号：GB2444528B
公开(公告)日：2011-07-06
申请号：GB0624594
申请日：2006-12-09
申请人： CONVERTEAM LTD , CONVERTEAM UK LTD
发明人： LEWIS ERIC ANTHONY
IPC分类号： F03D9/00

45. 发明专利

GB2434489B Tubular electrical machines 未知
公开(公告)号：GB2434489B
公开(公告)日：2011-04-20
申请号：GB0600964
申请日：2006-01-18
申请人： ALSTOM POWER CONVERSION LTD , CONVERTEAM LTD , CONVERTEAM UK LTD
发明人： LEWIS CLIVE D , FLEM GRAHAM LE
IPC分类号： H02K55/02 , H02K1/34 , H02K9/22 , H02K33/06 , H02K35/00 , H02K41/03
摘要： The current invention provides an improved synchronous tubular electrical machine comprised of a radially outer member (2) that has a substantially cylindrical inner surface, a radially inner member (5) that is substantially cylindrical and is coaxially disposed within the outer member (2) such that it may move reciprocally relative to the outer member (2) in the axial direction. A plurality of axially spaced circumferential armature coils (1) are electrically insulated from one another and are formed as part of one of the outer member (2) and the inner member (5). A plurality of axially spaced circumferential superconducting coils (4) are formed as part of the other of the outer member (2) and the inner member (5). During operation of the tubular machine, each superconducting coil (4) is maintained in a superconducting state and an electrical current is supplied to each superconducting coil (4) in such a manner that the current flowing around each coil is in the opposite direction to the current flowing around the coils adjacent to it. Tubular machines according to the present invention may be significantly more efficient, have higher peak-mean power ratios and be much smaller than current permanent magnet based synchronous tubular electrical machines.

46. 发明专利

GB2435692B Dynamic positioning of marine vessels 未知
公开(公告)号：GB2435692B
公开(公告)日：2010-10-06
申请号：GB0604205
申请日：2006-03-01
申请人： ALSTOM POWER CONVERSION LTD , CONVERTEAM LTD , CONVERTEAM UK LTD
发明人： STEPHENS RICHARD IAN
IPC分类号： G01S11/14 , G01C21/20
摘要： Dynamic positioning of a vessel 10 connected to the seafloor 14 by a riser 12 utilizes a measurement of riser 12 bottom angle combined with a measurement of vessel 10 velocity, optionally obtained from a Doppler log 16. These two signals are combined to produce a single position estimate using an algorithm such as a Kalman filter. Using riser bottom angle only would result in an unstable control system, since the bottom angle lags the vessel motion by a considerable amount and the relationship is non-linear. Using the velocity measurement alone would result in a slow drift of position. The combination of the two eliminates the disadvantages of the individual measurements.

47. 发明专利

GB2431528B Electronic commutator circuits 未知
公开(公告)号：GB2431528B
公开(公告)日：2009-04-29
申请号：GB0521099
申请日：2005-10-18
申请人： ALSTOM POWER CONVERSION LTD , CONVERTEAM LTD
发明人： CRANE ALLAN DAVID , NEWTON CHRISTOPHER
IPC分类号： H02P6/14 , H02K29/00
摘要： The electronic commutator circuits provide forced commutation enhancements that can be embedded within a known electronic commutator to overcome its low speed torque limitation. The forced commutation enhancements to the basic switched stage use a pair of thyristors. Capacitors may be pre-charged and synchronized to supplement coil voltages when discharged, thereby reducing commutation overlap duration and maximizing the turn-off time available to allow the thyristors to attain forward blocking capability. A capacitive discharge can be achieved by initiating the capacitive discharge by the same thyristor that will carry the current following the commutation, or by initiating the capacitive discharge by an auxiliary thyristor.

48. 发明专利

DE60230947D1 未知
公开(公告)号：DE60230947D1
公开(公告)日：2009-03-12
申请号：DE60230947
申请日：2002-04-18
申请人： CONVERTEAM LTD
发明人： LE FLEM GRAHAM , LEWIS CLIVE DAVID , EUGENE JOSEPH
IPC分类号： H02K3/24 , H02K3/46 , H02K3/47 , H02K9/19
摘要： A stator (5) for a high power density air gap electrical machine (2) comprises an outer annular laminated iron stator core (14) and a stator winding (13) comprising a plurality of coils having linear conductor portions (16) extending substantially parallel to a longitudinal axis (C) of the machine. Support teeth (20A, 20B) for the coils are fabricated from a non-magnetic material, with each support being interposed between two adjacent ones of the linear conductor portions (16) of the coils. The supports not only supplement the mechanical strength of the winding but also define channels (24A, 24B) for the flow of coolant to extract heat from the coils.

49. 发明专利

AT421792T 未知
公开(公告)号：AT421792T
公开(公告)日：2009-02-15
申请号：AT02252752
申请日：2002-04-18
申请人： CONVERTEAM LTD
发明人： LE FLEM GRAHAM , LEWIS CLIVE DAVID , EUGENE JOSEPH
IPC分类号： H02K3/24 , H02K3/46 , H02K3/47 , H02K9/19
摘要： A stator (5) for a high power density air gap electrical machine (2) comprises an outer annular laminated iron stator core (14) and a stator winding (13) comprising a plurality of coils having linear conductor portions (16) extending substantially parallel to a longitudinal axis (C) of the machine. Support teeth (20A, 20B) for the coils are fabricated from a non-magnetic material, with each support being interposed between two adjacent ones of the linear conductor portions (16) of the coils. The supports not only supplement the mechanical strength of the winding but also define channels (24A, 24B) for the flow of coolant to extract heat from the coils.

50. 发明专利

SG148100A1 POWER CONVERTERS 未知
公开(公告)号：SG148100A1
公开(公告)日：2008-12-31
申请号：SG2008033375
申请日：2008-04-30
申请人： CONVERTEAM LTD
发明人： JONES RODNEY , NEWTON DR CHRISTOPHER
摘要： POWER CONVERTERS The present invention is a power converter for interfacing a motor that requires a variable voltage at variable frequency to a supply network (bus) providing a nominally fixed voltage and nominally fixed frequency. It includes a first and second active rectifier/inverters both of which include a plurality of semiconductor power switching devices, a first controller using a dc link voltage demand signal indicative of a desired dc link voltage to control the semiconductor powered devices of the first active rectifier/inverter, and a second controller using a power demand signal indicative of the level of power to be transferred and a voltage demand signal indicative of the voltage to be achieved to control the semiconductor powered devices of the second active rectifier/inverter to achieve the desired levels of power and voltage that correspond to the power and voltage demand signals. The power converter can be employed in a marine propulsion system.

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