发明名称 |
METHOD OF SCALAR CONTROL OF (3ù3)-PHASE MATRIX FREQUENCY CONVERTER |
摘要 |
FIELD: electricity. ^ SUBSTANCE: scalar control method consists in pulse-duration control of three-phase voltage by means of fourfold alternating switching of valves at the period of carrier frequency only in two load phases, while in the third phase the valve remains ON throughout the repetition interval equal to 1/6 of period of output voltage. Switchings are performed at moments of equality of reference and three-phase modulating signals. The latter is obtained by multiplying the three-phase demand signal of harmonic shape by switching function, each phase of which is formed with alternation of various clock pulses of carrier frequency of unit amplitude, which divide the period of demand signal into six equal time intervals. ^ EFFECT: reducing commutation power losses and increasing maximum value of output voltage of amplitude of line-to-earth voltage of the network. ^ 6 dwg |
申请公布号 |
RU2414800(C1) |
申请公布日期 |
2011.03.20 |
申请号 |
RU20100110622 |
申请日期 |
2010.03.19 |
申请人 |
GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "UL'JANOVSKIJ GOSUDARSTVENNYJ TEKHNICHESKIJ UNIVERSITET" |
发明人 |
SIDOROV SERGEJ NIKOLAEVICH;POLJAKOV ALEKSEJ EVGEN'EVICH |
分类号 |
H02M5/293;H02M5/297;H02P27/08 |
主分类号 |
H02M5/293 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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