GB853371A - Means for reducing the harmonic currents in a static converter plant - Google Patents

Means for reducing the harmonic currents in a static converter plant

Info

Publication number
GB853371A
GB853371A GB470/59A GB47059A GB853371A GB 853371 A GB853371 A GB 853371A GB 470/59 A GB470/59 A GB 470/59A GB 47059 A GB47059 A GB 47059A GB 853371 A GB853371 A GB 853371A
Authority
GB
United Kingdom
Prior art keywords
harmonics
converter
jan
impedance
filter
Prior art date
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
GB470/59A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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.)
Filing date
Publication date
Application filed by ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB853371A publication Critical patent/GB853371A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1791—Combined LC in shunt or branch path
    • 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
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/445—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/06—Frequency selective two-port networks including resistors

Abstract

853,371. Filter networks. ALLMANNA SVENSKA ELEKTRISKA A.B. Jan. 8, 1959 [Jan. 18, 1958], No. 470/59. Class 40(8). [Also in Group XXXV] In a converter where the alternating current is found to contain harmonics of the order kp=1 where k is a positive integer and p is the pulse number of the converter, shunt filter circuits 10, 11 are provided whose impedancefrequency characteristic gives a high impedance for the fundamental and low impedance minima for the two lowest harmonics (k=1). As shown in Fig. 3 the circuit 10 applicable to a six pulse converter comprises essentially two parallel connected series resonant circuits tuned to frequencies near to the 5th and 7th harmonics. A parallel circuit 11 ensures that a low impedance is provided at higher harmonics. Fig. 5 shows the impedance frequency characteristic. An alternative filter arrangement is disclosed (Figs 4 not shown). The Specification also discloses' a simpler filter arrangement not within the scope of the claims.
GB470/59A 1958-01-18 1959-01-06 Means for reducing the harmonic currents in a static converter plant Expired GB853371A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE853371X 1958-01-18

Publications (1)

Publication Number Publication Date
GB853371A true GB853371A (en) 1960-11-02

Family

ID=20362732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB470/59A Expired GB853371A (en) 1958-01-18 1959-01-06 Means for reducing the harmonic currents in a static converter plant

Country Status (1)

Country Link
GB (1) GB853371A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141230A1 (en) * 1983-10-25 1985-05-15 BBC Aktiengesellschaft Brown, Boveri & Cie. Three-phase filter circuit plant
WO1992022953A1 (en) * 1991-06-19 1992-12-23 Golden Power Electronics Pty. Ltd. Electrical power supply

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141230A1 (en) * 1983-10-25 1985-05-15 BBC Aktiengesellschaft Brown, Boveri & Cie. Three-phase filter circuit plant
WO1992022953A1 (en) * 1991-06-19 1992-12-23 Golden Power Electronics Pty. Ltd. Electrical power supply

Similar Documents

Publication Publication Date Title
ES400006A1 (en) System for the electric supply of a variable capacitive load
JPS4919533B1 (en)
GB1093741A (en) Electric power converter for converting direct current to alternating current
GB1034341A (en) Improvements in and relating to electrical filters
GB1168808A (en) A Circuit Arrangement for Converting Electric Power
GB853371A (en) Means for reducing the harmonic currents in a static converter plant
GB1294036A (en) Thyristor switch
ES440376A2 (en) Inverters supplying a high frequency alternating current
JPS56157261A (en) Power source
US3710284A (en) Harmonic filter
GB1204692A (en) Load-matched inverters
GB783124A (en) Improvements in or relating to electron discharge device circuit arrangements
GB1053280A (en)
GB869454A (en) Electrical inverter systems employing semiconductor devices
GB1535741A (en) Converter apparatus
GB1136376A (en) Electric current converter comprising an oscillatory circuit
GB907129A (en) A system of eliminating the higher harmonic voltage of any alternating current circuit
GB1110322A (en) Improvements relating to current limiting coupling circuits
SU896742A1 (en) Frequency synthesizer
GB853149A (en) Improvements in or relating to frequency-transformation devices
GB1180110A (en) Current Converter Arrangements.
GB1044195A (en) Electrical inverter circuit
GB791251A (en) Improvements in and relating to electrical pulse forming networks
GB1042269A (en) Sine wave generator
GB1116357A (en) Improvements relating to electrical power couplings