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Braking energy recovery system for an electric motor and method

A technology of braking energy recovery and motor drive, which is applied in the direction of electric braking system, control system, motor generator control, etc., can solve the problems of circuit board or equipment real estate, large physical size of capacitors, etc., to prolong battery life and improve Effects on Efficiency and Drive Ability

Active Publication Date: 2018-04-17
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The requirement of excess capacity is a disadvantage because the physical size of the capacitor must be made larger
This is a further disadvantage in device applications with critical physical size constraints, where board or device real estate is critical

Method used

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  • Braking energy recovery system for an electric motor and method
  • Braking energy recovery system for an electric motor and method
  • Braking energy recovery system for an electric motor and method

Examples

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Embodiment Construction

[0039] Embodiments of the disclosure and its various features and advantageous details will be explained more fully with reference to the non-limiting examples described and / or illustrated in the drawings and described in detail in the following description. It should be noted that the features illustrated in the figures are not necessarily drawn to scale and that, as those skilled in the art will recognize, features of one embodiment may be employed with other embodiments even if not explicitly stated herein. Descriptions of well-known components and processing techniques may be omitted so as not to unnecessarily obscure the embodiments of the present disclosure. The examples used herein are only intended to facilitate an understanding of the ways in which embodiments of the invention may be practiced, and also to enable those skilled in the art to practice the same. Accordingly, the examples herein should not be construed as limiting the scope of embodiments of the present d...

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PUM

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Abstract

A braking energy recovery system (50) for an electric motor (62) comprises first regulator (52), energy storage device (54), second regulator (56), sensor (60), and controller (58). The first regulator (52) outputs a DC link voltage to the energy storage device (54). The second regulator (56) couples to the energy storage device and outputs a motor drive signal to the electric motor (62). The sensor (60) senses an operating characteristic of the electric motor. The controller (58) outputs to the first regulator an energy management signal (74) that comprises a time variant signal as a functionof (i) motor speed and / or (ii) back EMF determined via the sensed characteristic, whereby the first regulator dynamically regulates the DC link voltage to maintain substantially constant an energy balance that comprises a sum of (a) rotational and / or linear kinetic energy of the electric motor and (b) energy stored in the energy storage device.

Description

technical field [0001] This embodiment relates to a motor, and specifically relates to a braking energy recovery system for a motor drive control circuit and a braking energy recovery method. Background technique [0002] Conventional motor drives, such as permanent magnet brushless motor drives, are driven by an input power bus powered at a relatively constant voltage level. Such as figure 1 As shown, a conventional motor drive control circuit 10 includes a voltage regulator 12 , a DC link capacitor 14 , a motor regulator 16 , a sensor 20 and a permanent magnet motor 22 . The electric machine 22 includes a rotor and a stator, as is known in the art. Additionally, the motor 22 includes any of single-phase, two-phase, 3-phase, or other configurations, where the number of phases corresponds to a motor stator having the same number of windings. [0003] still refer to figure 1 , the voltage regulator 12 converts the input voltage V 主要 regulated to a regulated fixed output ...

Claims

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Application Information

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IPC IPC(8): H02P3/00
CPCH02P3/00B60L7/10B60L7/14B60W20/14H02P3/14A61M16/0066F04D25/06H02M3/1582
Inventor P·M·林德贝格N·达贝尔科
Owner KONINKLJIJKE PHILIPS NV