GB1288867A – – Google Patents
GB1288867A – – Google Patents
Info
Publication number
GB1288867A
GB1288867A
GB1288867DA
GB1288867A
GB 1288867 A
GB1288867 A
GB 1288867A
GB 1288867D A
GB1288867D A
GB 1288867DA
GB 1288867 A
GB1288867 A
GB 1288867A
Authority
GB
United Kingdom
Prior art keywords
thyristors
time delay
circuit
feb
operate
Prior art date
1969-02-14
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1969-02-14
Filing date
1970-02-13
Publication date
1972-09-13
1970-02-13
Application filed
filed
Critical
1972-09-13
Publication of GB1288867A
publication
Critical
patent/GB1288867A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
238000012544
monitoring process
Methods
0.000
abstract
1
230000003287
optical effect
Effects
0.000
abstract
1
230000001960
triggered effect
Effects
0.000
abstract
1
Classifications
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
H02M1/00—Details of apparatus for conversion
H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H02M7/75—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
H02M7/757—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
H02M7/7575—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only for high voltage direct transmission link
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Abstract
1288867 Protecting converters ALLMANNA SVENSKA ELEKTRISKA AB 13 Feb 1970 [14 Feb 1969] 6954/70 Heading H2F In a converting system comprising a series chain of thyristors 101 … 104, protection against self-triggering following a-commutationperiod comprises a first polarity sensing circuit 116, 118 for determining when the anode voltage is negative, a further circuit 117, 119 for determining when the anode voltage is positive, a time delay 120, 121 interposed between one of said circuits and a AND gate 105, arranged to trigger all thyristors 101 … 104 if the margin angle is less than the time delay t. The invention minimizes the voltage across certain thyristors that remain non-conductive if other thyristors become self-triggered. The time delay t may be adjusted in dependence on the load on the circuit by monitoring the current in a transductor 19 followed by an amplifier 20 and integrator 21. A circuit breaker 23 may operate on the A.C. side when the load is excessive. The circuit breaker 23 may also operate a by-pass switch 18 on the D.C. side of a 3-phase bridge. The conventional triggering pulses may be fed to terminal 11 either directly or via an optical link.
GB1288867D
1969-02-14
1970-02-13
Expired
GB1288867A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
SE02025/69A
SE338099B
(en)
1969-02-14
1969-02-14
Publications (1)
Publication Number
Publication Date
GB1288867A
true
GB1288867A
(en)
1972-09-13
Family
ID=20259256
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1288867D
Expired
GB1288867A
(en)
1969-02-14
1970-02-13
Country Status (5)
Country
Link
US
(1)
US3865438A
(en)
CH
(1)
CH524271A
(en)
DE
(1)
DE2005724B2
(en)
GB
(1)
GB1288867A
(en)
SE
(1)
SE338099B
(en)
Families Citing this family (22)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
SE364412B
(en)
*
1972-06-21
1974-02-18
Asea Ab
SE364826B
(en)
*
1972-07-10
1974-03-04
Asea Ab
SU546304A3
(en)
*
1973-10-05
1977-02-05
Сименс Аг (Фирма)
Device for protection of converter valves
US4027169A
(en)
*
1974-03-29
1977-05-31
Union Carbide Corporation
High frequency power supply
JPS51116663A
(en)
*
1975-04-07
1976-10-14
Hitachi Ltd
Gate control unit for thyrister valve
US4015170A
(en)
*
1975-06-30
1977-03-29
Khristofor Fedorovich Barakaev
Method for overvoltage protection of HVDC transmission line systems
CA1068782A
(en)
*
1976-08-23
1979-12-25
Siemens Aktiengesellschaft
Protective circuit for thyristors
JPS5820552B2
(en)
*
1977-01-26
1983-04-23
株式会社東芝
thyristor conversion device
SE406846B
(en)
*
1977-05-17
1979-02-26
Asea Ab
THYRISTOR COUPLING WITH OVERVOLTAGE PROTECTION
US4309749A
(en)
*
1979-05-13
1982-01-05
Siemens Aktiengesellschaft
Circuit having improved firing angle symmetry for ignition pulses in the control of a multipulse rectifier
SE446418B
(en)
*
1980-07-07
1986-09-08
Asea Ab
RECOVERY PROTECTION FOR A TURISTOR VALVE WITH A MULTIPLE SERIES-PLUGED THRISTORS
DE3035689C2
(en)
*
1980-09-22
1986-02-06
Siemens AG, 1000 Berlin und 8000 München
Arrangement for triggering two thyristor pairs connected in series, each consisting of two thyristors connected in anti-parallel
EP0066950B1
(en)
*
1981-05-21
1985-12-11
F.L. Smidth & Co. A/S
Method of protecting a thyristor switch of a pulse generator
SU1105976A1
(en)
*
1981-05-25
1984-07-30
Всесоюзный Электротехнический Институт Им.В.И.Ленина
Device for protecting converter thyristors against sticking
US4400755A
(en)
*
1981-07-16
1983-08-23
General Electric Company
Overvoltage protection circuit
CH662220A5
(en)
*
1982-05-05
1987-09-15
V Elektrotech I V I Lenina
METHOD AND ARRANGEMENT FOR IMPULSE CONTROL OF A HIGH VOLTAGE THYRISTOR VALVE.
JPS58195468A
(en)
*
1982-05-07
1983-11-14
Mitsubishi Electric Corp
Device with series thyristors
JPS5911772A
(en)
*
1982-07-12
1984-01-21
Kansai Electric Power Co Inc:The
Overvoltage protecting device of optically firing thyristor
US4494182A
(en)
*
1983-01-14
1985-01-15
General Electric Company
Commutation detection apparatus and method
GB2149594A
(en)
*
1983-11-09
1985-06-12
Smidth & Co As F L
Fast-acting spark-over detector
DK165105C
(en)
*
1985-08-19
1993-02-22
Smidth & Co As F L
PROCEDURE AND CIRCUIT FOR THE PROTECTION OF THYRISTORS IN AN IMPULSE GENERATOR
DE102010010380A1
(en)
*
2010-03-05
2011-09-08
Converteam Gmbh
Method for operating an electrical circuit
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1171953A
(en)
*
1967-02-03
1969-11-26
English Electric Co Ltd
Improvements in Static Invertor Control Circuits
US3541423A
(en)
*
1969-01-10
1970-11-17
Gen Electric
Margin angle detector
1969
1969-02-14
SE
SE02025/69A
patent/SE338099B/xx
unknown
1970
1970-02-02
US
US007843A
patent/US3865438A/en
not_active
Expired – Lifetime
1970-02-07
DE
DE19702005724
patent/DE2005724B2/en
active
Pending
1970-02-10
CH
CH191970A
patent/CH524271A/en
not_active
IP Right Cessation
1970-02-13
GB
GB1288867D
patent/GB1288867A/en
not_active
Expired
Also Published As
Publication number
Publication date
SE338099B
(en)
1971-08-30
US3865438A
(en)
1975-02-11
DE2005724A1
(en)
1970-11-19
CH524271A
(en)
1972-06-15
DE2005724B2
(en)
1972-06-22
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Legal Events
Date
Code
Title
Description
1973-01-24
PS
Patent sealed [section 19, patents act 1949]
1979-10-24
PCNP
Patent ceased through non-payment of renewal fee
