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Publication Title | (12)UnitedStatesPatent Edelman et al. TURBOGENERATOR POWER CONTROL SYSTEM AND METHOD

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(12)UnitedStatesPatent Edelman et al.

(54) TURBOGENERATOR POWER CONTROL SYSTEM AND METHOD

(75) Inventors:EdwardC.Edelman,AgouraHills; Mark G. Gilbreth, Woodland Hills;

(10)PatentN0.: US 6,281,601B1 (45) Date of Patent: Aug. 28, 2001

4,262,209 * 4/1981 Berner..307/44

4>731>547 4,994,981 5,168,208 5,302,906 5,321,308

UTILITY LOAD

UTILITY LOAD REAcTIvE

DEMAND ‘09 /_

3/1988 Alendu?eta1‘'

2/1991 Walkeretal.. 12/1992 Schultzetal..

4/1994 Lerch. 6/1994 Johncock.

AVERAGER

REAL POWER FEEDBACK(kw)

DEMAND

MIN POWER OPERATING LIMIT AND DISPATCH

HYSTERESIS BAND

PWR TURBOGENERATOR

(KVAR) SAMPLE 108 AVERAGER

REAcTIvE POWER FEEDBACK(kVAR)

98

96 97 1 REALPOWER

99

/-

101

POWER 104 METER

/

SAMPLE 1, J REAcTIvEPOWER CON$R§LLEH

110 111

/ 92

/- 106

BUILDING LOAD REALPOWER

REAcTIvEPOWER

DEMAND

5,336,991 5,390,068 5,483,147

576107501 576357768

* *

Joe] B. Wacknov, Thousand Oaks, al

ofCA(Us) 6,023,135*2/2000Gilbrethetal...290/52

_ _ _ (73) Asslgneei CapstoneThrbllleCOFPOFatIOIL

Chatsworth, CA (US)

(*) Notice: Subjecttoanydisclaimer,thetermofthis patent is extended or adjusted under 35

U.S.C. 154(b) by 0 days.

(21) Appl'NO‘:09/360’043 (22) Filed; Jul_23,1999

....... 290/52 .60/39.511

(51)

(58)

(56)

Int.cl.7 ..H02P 9/04;F01D 15/10; H02] 1/16

U-S- Cl- ..

Field Of Search .. 307/29, 31, 44,

307/45> 47; 290/52 _

References Clted U_S_PATENT DOCUMENTS

, ,

g/1997 Gyugy‘6‘‘1'' /1998 Schauder et al. .

100

93

US006281601B1

8/1994 Atherton et al. .. 324/142 2/1995 Schultz et al.

1/1996 Ilicetal..

3/1997 Nelsonetal--

6/1997 B‘mh ‘T’ta1"

6,031,294 * 2/2000 Geis et al. ....... 6,032,459 * 3/2000 Skowronski

6,055,163 * 4/2000 Wagner etal. .

6,093,975 * 7/2000 Peticolas

6,169,334 * 1/2001 Edelman ..290/52

_ _ * cued by @Xamlner

Primary Examiner—Josie Ballato AssistantExaminer—RiosRoberto

(74)Attorney,Agent,orFirm—Irell&Manella,LLP

(57) ABSTRACT

The power meter, required in most utility grid connectged applications to measure load Consumption, is utilized to provide a feedback to an associated turbogenerator power controller, providing a control system for peak shaving, load following, reactive poWer control, reverse ?oW protection and load analysis for scheduled turbogenerator operation. ThiscontrolsystemoperatesWithsimplediscretesignalsfor peak shaving operation, to more complex pulse signals for loadfollowing,toloadpro?leanalysisandScheduledOpera tionbasedonamicroprocessorbasedserialinputfroma digitalpowermeter‘

3 Claims, 8 Drawing Sheets

363/37 290/52

Image | (12)UnitedStatesPatent Edelman et al. TURBOGENERATOR POWER CONTROL SYSTEM AND METHOD



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