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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 Lab. (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

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:

Peg-style electrostatic rotating machine
patent, February 2018


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


Electrostatic motor
patent, July 2014


Electrostatic pickoff and torquer
patent, April 1978


Pulsed start-up system for electrostatic generators
patent, November 2018


Self-adjusting magnetic bearing systems
patent, July 1998