摘要:
A high current interconnection system is provided which can be configured to couple a motor to an inverter. A high current interconnection system comprises a bus bar, a motor winding coupled to the bus bar, and a thermal interface. The motor winding is configured to receive a current. The thermal interface can be coupled to at least one of the motor winding or the bus bar. The thermal interface is configured to reduce a temperature of the motor winding or bus bar which the thermal interface is coupled to.
摘要:
A low noise interconnection system is provided which is configured to couple a motor to an inverter. The system comprises a bus bar and a motor winding. The bus bar is configured to receive a current from the inverter. The motor winding is directly connected to the bus bar and configured to receive the current.
摘要:
A filter assembly is provided which includes a Faraday cage interface. Electrical noise is filtered by the Faraday cage interface. The Faraday cage interface is configured to prevent passage of electromagnetic waves.
摘要:
A multiple DC-to-AC inverter system, which is suitable for an electric or hybrid vehicle application, includes a plurality of inverters controlled by a single controller. One example embodiment includes four three-phase inverters driving one six-phase motor, where the output of the first inverter is coupled to the output of the fourth inverter and the output of the second inverter is coupled to the output of the third inverter. In response to the failure of an inverter, the drive signals to the inverter that is coupled to the faulty inverter are updated such that the partner inverter can remain active without being driven into an over-current condition.
摘要:
Methods for controlling a multiple DC-to-AC inverter system, which is suitable for an electric or hybrid vehicle application, are disclosed. In one embodiment, if an inverter fails or suffers from degraded performance (faulty inverter), the faulty inverter is disabled and drive signals to a healthy inverter that is coupled to the faulty inverter are updated such that the healthy inverter can remain active without being driven into an over-current condition.
摘要:
The present invention includes a method for thermal management in a voltage source inverter. The method includes sensing a low output frequency condition, determining a zero vector modulation responsive to the sensed low output frequency condition, and applying the determined zero vector modulation to reduce thermal stress in the voltage source inverter. The step of determining the zero vector modulation responsive to the sensed low output frequency condition includes mapping an output voltage requirement to a space vector structure and determining state switching space vectors based on the mapped output voltage requirement. The step of determining the state switching space vector includes determining active state switching space vectors associated with the state switching space vectors, determining duty cycles for the active state switching space vectors based on the active state switching space vectors, and determining a duty cycle for at least one zero state switching space vector based on the determined duty cycles of the active state switching space vectors and a switching period.
摘要:
A method for making a motor and auxiliary devices with a unified stator body comprises providing a piece of material (10) having an area larger than a cross section of the stator (11), removing material from the piece of material (10) to form a pattern for a cross section of a core (11) for the stator, and removing material from the piece of material (10) outside the cross section of the core of the stator (11) to allow positioning of cores (22, 23, 24) for supporting windings (25, 26, 27) of least one additional electromagnetic device, such as a transformer (62) in a dc-to-dc converter (61, 62) that provides a low. voltage dc output. An article of manufacture made according to the invention is also disclosed and apparatus made with the method and article of manufacture are also disclosed.
摘要:
The preferred embodiments of the present invention utilize the internal combustion engine of a hybrid vehicle, coupled with an energy storage device and series of inverters to provide electrical power generation capability for an electric power take-off (EPTO) system. Additional embodiments of the present invention utilize an existing on-board AC induction motor to provide filtering capability for the generated AC power.
摘要:
A method for decoupling a harmonic signal from an input signal wherein the harmonic signal is harmonic relative to a signal other than the input signal. An angular position of the other signal is multiplied by a value representing the harmonic to obtain an angular position multiple. A harmonic decoupling block uses the angular position multiple to obtain correction signals representing the harmonic signal, and subtracts the correction signals from the input current to decouple the harmonic signal from the input signal. This method is useful for decoupling unwanted harmonics from currents into which high-frequency signals have been injected for control of electric motors.
摘要:
A control system for a vehicle powered by a fuel cell includes a voltage conversion device that communicates with the fuel cell through a voltage bus and a propulsion system that is selectively powered by the fuel cell through the voltage bus and that selectively generates a ripple current in the voltage bus. The voltage conversion device is regulated to selectively generate a counter-ripple current that reduces the ripple current.