skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Pulsed start-up system for electrostatic generators

Patent ·
OSTI ID:1771515

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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
10,804,819
Application Number:
16/163,366
OSTI ID:
1771515
Resource Relation:
Patent File Date: 10/17/2018
Country of Publication:
United States
Language:
English

References (25)

Electrostatic generator/motor configurations patent-application February 2011
Electrostatic motor patent July 2014
Fan Arrangement Having Automatic Control Capability patent June 1973
Electrode geometry for electrostatic generators and motors patent February 2016
Technique for enhancing the power output of an electrostatic generator employing parametric resonance patent February 2016
Electrostatic generator/motor having rotors of varying thickness and a central stator electrically connected together into two groups patent November 2010
Peg-style electrostatic rotating machine patent February 2018
Encoderless motor with improved granularity and methods of use patent July 2019
Wheel Speed Sensor for an Adaptive Braking System patent December 1971
Electrostatic generator/motor rotor electrode system suitable for installation on the outer surface of an EMB rotor patent June 2019
Electrostatic induction generation device and electrostatic induction generation apparatus patent-application February 2012
Pulsed start-up system for electrostatic generators patent November 2018
Electrostatic Generator Electrode-Centering and Seismic-Isolation System for Flywheel-Based patent-application January 2018
Electrostatic generator/motor rotor electrode system suitable for installation on the outer surface of an EMB rotor patent-application February 2017
Tone Signal Generator patent April 1970
Electrostatic pickoff and torquer patent April 1978
Electrode geometry for electrostatic generators and motors patent-application September 2014
Design for electrostatic generator/motor electrodes located on the inner surface of an electromechanical battery rotor patent-application February 2017
Electrostatic generator/motor electrodes located on the inner surface of an electromechanical battery rotor patent May 2019
Electrostatic Generator Construction patent June 1958
Positioning structure for air fan induction element and stator patent June 2004
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
Self-adjusting magnetic bearing systems patent July 1998

Similar Records

Pulsed start-up system for electrostatic generators
Patent · Tue Nov 06 00:00:00 EST 2018 · OSTI ID:1771515

Electromechanical Battery Program at the Lawrence Livermore National Laboratory
Conference · Tue May 31 00:00:00 EDT 1994 · OSTI ID:1771515

Flywheels put a new spin on electric vehicles
Journal Article · Fri Oct 01 00:00:00 EDT 1993 · Mechanical Engineering; (United States) · OSTI ID:1771515

Related Subjects