Unlock instant, AI-driven research and patent intelligence for your innovation.

Generator Excitation Regulation Using Pulse Width Modulation

A technology of pulse width modulation and generator, applied in the direction of controlling the generator, controlling the generator through the change of the magnetic field, controlling the system, etc.

Active Publication Date: 2018-11-13
INFINEON TECH AG
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to prevent it from exceeding the allowable final charge voltage of the vehicle battery during high RPM events, the voltage is usually limited by the regulator to a maximum

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Generator Excitation Regulation Using Pulse Width Modulation
  • Generator Excitation Regulation Using Pulse Width Modulation
  • Generator Excitation Regulation Using Pulse Width Modulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Vehicles with internal combustion engines typically use a Lundell machine as the primary power source. Rendell machines provide a robust and economical solution for the power supply in vehicles.

[0018] figure 1 A vehicle generator 100 with a field regulator 101 is shown in . The generator 100 also includes a Rendell alternator 102 (also known as a claw pole alternator), which is a wound-field 3-phase synchronous machine. The output of the Rendell alternator 102 communicates with a 3-phase bridge rectifier 103 to generate direct current (DC) power.

[0019] The field regulator 101 internally generates an error signal based at least on the difference between the terminal voltage (across the battery terminals B+ and B- at the output of the 3-phase bridge rectifier 103) and the voltage set point (value) 104 . The field regulator 101 includes a pulse width modulation (PWM) controller 105 controlling a power transistor 106 , the controlled path of which is in series wit...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Embodiments of the present disclosure relate to generator excitation regulation using pulse width modulation. The system may be configured to provide regulated generator field current to the generator to obtain a regulated output voltage of the generator. In one example, a system includes: a controller configured to provide an actuator control signal based on an error signal; an actuator configured to provide a pulse width modulated output voltage based on the actuator control signal, the pulse width modulated output a voltage configured to drive a regulated generator field current into the generator, a pulse width modulated output signal having a duty cycle controlled by the actuator control signal; The combination of signals provides an error estimator of the error signal.

Description

technical field [0001] The present disclosure relates to a concept for providing a regulated, limited generator field current to a generator to obtain a regulated output voltage of the generator, as may be employed, in particular for voltage generation in motor vehicles A regulated voltage is provided at the device. Background technique [0002] To power electronic components within a motor vehicle, a generator, such as an alternator, is often used in conjunction with the vehicle battery. A generator or alternator is driven by a running engine as an auxiliary unit. The drive can be realized, for example, by means of a belt drive or directly via a crankshaft. With a driven alternator, electrical current is provided by the driven alternator, for example for charging the vehicle battery and for loads connected to the on-board network. The alternator converts the mechanical energy provided by the engine into electrical energy, the required mechanical power being approximately...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/30H02P101/45
CPCH02P9/305H02P9/48
Inventor C·塞得尔
Owner INFINEON TECH AG