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Title: Pulsed start-up system for electrostatic generators

Abstract

A new rotor start-up system is provided for application to rotating systems such as stationary or vehicular electromechanical battery systems. An embodiment of the system consists of a “locator” that includes a stationary permanent-magnet pole above which is a circular ferromagnetic (e.g., iron) strip embedded in the lower, inner edge of the flywheel rotor. The lower edge of this strip is wave-like so that the magnet can pull the rotor around to a position where the position relative to the minimum capacity between the rotor and stator electrodes is such as to launch the rotor in a chosen direction, i.e., either clock-wise or counter-clockwise. Startup from rest is then accomplished by applying a short high-voltage ac or dc pulse to the EMB capacitor.

Inventors:
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771515
Patent Number(s):
10804819
Application Number:
16/163,366
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
H - ELECTRICITY H02 - GENERATION H02N - ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 10/17/2018
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Post, Richard F. Pulsed start-up system for electrostatic generators. United States: N. p., 2020. Web.
Post, Richard F. Pulsed start-up system for electrostatic generators. United States.
Post, Richard F. Tue . "Pulsed start-up system for electrostatic generators". United States. https://www.osti.gov/servlets/purl/1771515.
@article{osti_1771515,
title = {Pulsed start-up system for electrostatic generators},
author = {Post, Richard F.},
abstractNote = {A new rotor start-up system is provided for application to rotating systems such as stationary or vehicular electromechanical battery systems. An embodiment of the system consists of a “locator” that includes a stationary permanent-magnet pole above which is a circular ferromagnetic (e.g., iron) strip embedded in the lower, inner edge of the flywheel rotor. The lower edge of this strip is wave-like so that the magnet can pull the rotor around to a position where the position relative to the minimum capacity between the rotor and stator electrodes is such as to launch the rotor in a chosen direction, i.e., either clock-wise or counter-clockwise. Startup from rest is then accomplished by applying a short high-voltage ac or dc pulse to the EMB capacitor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {10}
}

Works referenced in this record:

Electrostatic generator/motor configurations
patent-application, February 2011


Electrostatic motor
patent, July 2014


Fan Arrangement Having Automatic Control Capability
patent, June 1973


Peg-style electrostatic rotating machine
patent, February 2018


Wheel Speed Sensor for an Adaptive Braking System
patent, December 1971


Tone Signal Generator
patent, April 1970


Electrostatic pickoff and torquer
patent, April 1978


Electrode geometry for electrostatic generators and motors
patent-application, September 2014


Electrostatic Generator Construction
patent, June 1958


Pole-shoe magnet group for magnetomotive device
patent, July 1980


Digital Type Rotational Angle Detector
patent, August 1972


Electric Motor with Overload Cut-Out
patent, January 1971