Abstract:
An electric motor-generator (1) of the type with permanent magnets with three-phase radial flow, comprising a stator having a plurality of teeth (3), each one provided with a respective electric winding (5) implemented by a conducting wire and with a respective heading polar expansion (4), divided into groups (A, B, C) corresponding each one to a phase, allows an easy implementation of the windings in the motor itself by using teeth of the stator with even relevant sizes, by obtaining at the same time a reduced short-circuit current which produces a smaller fatigue of the battery during the recharge phase, wherein the electric windings (5) of each single tooth of each group are connected therebetween in parallel, wherein the distance (13) between adjacent polar expansions is the minimum one so as to allow the passage of a conducting wire and wherein, by identifying a first magnetic circuit (X) comprising two adjacent teeth (3), the respective rotor and stator yokes, the thicknesses of the respective permanent magnets and the corresponding air gap, and a second magnetic circuit (Y) comprising two adjacent teeth (3), the respective rotor yokes, the respective halves (12) of the faced polar expansions (4) of said adjacent teeth (5) and the distance (13) between such polar expansions (4), the magnetic reluctances of the first and second circuit (X, Y) have the same order of magnitude.
Abstract:
A control module for an electric motor having a stator that includes a first surface, wherein cooling fluid is arranged to flow within the stator for providing cooling to the first surface, the power module comprising a power device having switching elements for controlling current flow in coil windings mounted on the stator; a control device for controlling the operation of the switching devices; a housing with a first side for mounting to the first surface of the stator, wherein the first side of the housing includes an aperture for allowing a portion of the power device to be in contract with the first surface of the stator when the housing is mounted to the first surface for providing cooling to the switching elements, wherein the control device is arranged to be mounted in the housing on an opposite side of the power device to the first side of the housing and an elastomer is located over the power device and the control device for providing an electrical insulation barrier over the switches on the power device and electrical components on the control device.
Abstract:
An electric motor or generator comprising a stator with at least one coil winding, wherein the stator includes a first surface having a section of the at least one coil winding extending in a direction away from the first surface, and a control module having a housing with a first side that is arranged to be mounted to the first surface of the stator, wherein the housing includes a first element for detecting current flow, and a control device for controlling current flow in the at least one coil winding based upon the current flow detected by the first element, wherein the section of the at least one coil winding that is arranged to extend away from the first surface is arranged to extend through an aperture formed on the first side of the housing for coupling to the control device, wherein the first element is mounted in the housing adjacent to the aperture.
Abstract:
An electrical energy storage system includes a plurality of electrical energy storage modules with each module having an associated operating voltage and each module being capable of outputting electrical power at a variable current at the associated operating voltage. The system further includes a plurality of electrical power modulation circuits electrically connected to an associated one of the modules thereby allowing the associated module to be electrically isolated from the other modules of the system. Each power modulation circuit includes an arrangement for receiving the module operating voltage and current of the associated module, transforming the operating voltage and current, and outputting electrical power at a voltage that is independent of the module operating voltage of the associated electrical energy storage module. The system further includes an overall master controller electrically connected to each of the power modulation circuits of each module to control the electrical power output from each of the modules and thereby control the power output of the overall system.
Abstract:
A network of collection, charging and distribution machines collect, charge and distribute portable electrical energy storage devices (e.g., batteries, supercapacitors or ultracapacitors). To charge, the machines employ electrical current from an external source, such as the electrical grid or an electrical service of an installation location. By default, each portable electrical energy storage device is disabled from accepting a charge unless it receives authentication information from an authorized collection, charging and distribution machine, other authorized charging device, or other authorized device that transmits the authentication credentials. Also, by default, each portable electrical energy storage device is disabled from releasing energy unless it receives authentication information from an external device to which it will provide power, such as a vehicle or other authorization device.
Abstract:
A network of collection, charging and distribution machines collect, charge and distribute portable electrical energy storage devices (e.g., batteries, supercapacitors or ultracapacitors). To charge, the machines employ electrical current from an external source, such as the electrical grid or an electrical service of an installation location. As demand at individual collection, charging and distribution machines increases or decreases relative to other collection, charging and distribution machines, a distribution management system initiates redistribution of portable electrical energy storage devices from one collection, charging and distribution machine to another collection, charging and distribution machine in an expeditious manner. Also, redeemable incentives are offered to users to return or exchange their portable electrical energy storage devices at selected collection, charging and distribution machines within the network to effect the redistribution.
Abstract:
본 발명은 인버터 회로가 내장된 이동체를 가지는 권선형 동기기에 관한 것으로, 인버터 회로가 내장된 이동체를 가지는 권선형 동기 전동기 또는 발전기를 포함하는 권선형 동기기에 있어서, 권선형 동기기의 이동체에 연결된 이동체 인버터 회로; 및 이동체 인버터 회로에 연결되어 이동체 인버터 회로를 제어하는 이동체 회로 제어장치를 포함하는 것을 특징으로 하는 권선형 동기기를 제공한다. 이동체 회로 제어장치는, 고정자 인버터 회로의 고주파 전압을 추정하는 고정자 인버터 전압 추정기; 이동체의 계자전류지령을 생성하는 계자전류지령 생성기; 이동체의 직류단 에너지 저장장치 전압을 추종하는 전류지령을 생성하는 에너지 저장장치 전압 제어기를 포함하는 것을 특징으로 하는 권선형 동기기를 제공한다. 본 발명에 의하면 희토류 영구자석의 사용문제를 해결할 수 있고 별도의 전력원이 필요 없고, 맥동문제가 거의 발생하지 않는 여자회로가 포함된 권선형 동기기를 구현할 수 있다.
Abstract:
Die Erfindung betrifft ein Verfahren zum Betreiben eines Fahrzeugs mit mindestens einer gelenkten und mindestens einer angetriebenen Achse, wobei mindestens die angetriebene Achse mindestens zwei Radnabenelektromotoren besitzt, welche in das jeweilige Antriebsrad integriert sind. Weiterhin ist eine elektronische Steuerung für die Radnabenmotoren unter Bildung eines elektronischen Differentials vorhanden. Sensoren erfassen Signale, die den Fahrvorgaben entsprechen. Erfindungsgemäß wird mittels eines Interface-Moduls aus den Sensorsignalen, der Stellung des Fahrfußhebels bzw. eines Gasgriffs und des Lenkwinkels eine Ermittlung von Korrekturfaktoren für Vorgabewerte zur Steuerung der Radnabenmotoren vorgenommen und an die diesbezüglichen Motorsteuerungen weitergeleitet.
Abstract:
A brushless permanent magnet electric machine with a fixed radial air gap is operated to a much higher speed than normal maximum speed by the reduction in effective magnet pole strength. Permanent magnets are supported on the inner surface of an axially movable cylindrical shell. A plurality of magnetic poles provided with wire coils are supported on a stationary cylindrical member cooperate with the permanent magnets on the axially movable cylindrical shell to either cause, or react to, rotation of the axially movable cylindrical shell. The axially movable cylindrical shell and cylindrical member are coaxial. The cylindrical shell is axially movable with respect to the cylindrical member.