Novel double-stator switched reluctance motor integrated charging function driving converter
A technology of switched reluctance motor and charging function, which is applied in the direction of electric vehicle charging technology, motor, charging station, etc., to achieve the effect of reducing cost, increasing flexibility, and improving the degree of integration
Pending Publication Date: 2021-12-10
CHINA UNIV OF MINING & TECH
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These components are also available in the driving topology. Therefore, if these components can be time-divisionally multiplexed to integrate the electric drive system and charging system, the cost and volume of electric vehicles can be greatly reduced, which is a solution that can be considered.
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[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0027] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless defined as herein...
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The invention discloses a novel double-stator switched reluctance motor integrated charging function driving converter. The converter comprises a novel modularized U-shaped double-stator switched reluctance motor inner and outer stator windings, two rectifier direct-current bus capacitors, an electric vehicle storage battery, a first relay, a second relay, and two sets, each set comprises six switch tubes and six diodes, and each switch tube and diode set and the bus capacitor form a power converter for driving inner and outer stator windings of the double-stator switched reluctance motor. Bus current is provided by a rectifier connected with an alternating current power grid, and opening and closing of the inner and outer stator power converters are controlled through opening and closing of the first relay. During disconnection, the inner stator works in a power generation state by driving the outer stator to realize isolated charging, and the working mode of the electric vehicle is changed by controlling the opening and closing of the second relay to realize non-isolated charging. The internal and external stator structures and the electrical isolation characteristics of the novel sectional type double-stator switched reluctance motor are utilized, the motor winding and the existing power switch device are utilized to form the integrated driving converter with isolated and non-isolated charging functions, use of power switch tubes is reduced, the cost of the electric vehicle is reduced, the driving and charging functions are fused, and meanwhile, the safety is enhanced.
Description
technical field [0001] The invention relates to the field of a novel motor and its control, and the field of battery charging for electric vehicles, in particular to an integrated drive converter with isolated and non-isolated charging functions. Background technique [0002] Compared with traditional cars, electric vehicles have more advantages, and their advantages of zero emission, low noise and high efficiency and energy saving make them attract more and more people's attention. As the core system of electric vehicles, the drive system of electric vehicles plays an important role. As a member of the electric drive lineup, the switched reluctance motor has limited its popularization due to its main disadvantages such as low torque density, high torque ripple and high noise. In order to solve the above shortcomings, the patent No. 2019108191531 discloses a new type of double-stator switched reluctance motor with a segmented U-shaped stator structure and a certain mechanic...
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IPC IPC(8): H02P25/092H02J7/10B60L53/24B60L53/22
CPCH02P25/092H02J7/06B60L53/24B60L53/22H02J2207/20Y02T10/64Y02T10/70Y02T10/72Y02T10/92Y02T10/7072Y02T90/14
Inventor 程鹤廖朔张动宾闫文举于东升
Owner CHINA UNIV OF MINING & TECH