SU397135A1 - Method of regulating operating current of semi-circuits of bipolar dc power transmission line - Google Patents
Method of regulating operating current of semi-circuits of bipolar dc power transmission line Download PDFInfo
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- SU397135A1 SU397135A1 SU711693942A SU1693942A SU397135A1 SU 397135 A1 SU397135 A1 SU 397135A1 SU 711693942 A SU711693942 A SU 711693942A SU 1693942 A SU1693942 A SU 1693942A SU 397135 A1 SU397135 A1 SU 397135A1
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- semi
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- bridges
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- current
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Description
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Изобретение относитс к электропередачам посто нного тока, в частности к регулированию тока полуцепей бипол рных электропередач .This invention relates to direct current power transmissions, in particular, to the regulation of the current of bipolar electric power semiends.
Известен способ регулировани рабочего тока полуцепей бипол рных электропередач посто нного тока, при котором, измен число мостовых преобразователей, включенных в полуцепи, регулируют рабочие токи полуцепей .There is a method of adjusting the operating current of semi-chains of bipolar direct-current power transmissions, in which, by changing the number of bridge converters included in the semi-chain, regulate the working currents of the semi-chains.
Однако в известном способе регулировани рабочего тока при соблюдении равенства токов в полуцеп х в некоторых режимах (при неполной загрузке передачи и несимметрии напр жени полуцепей из-за разного числа включенных в полуцепь мостов ) имеют место повышенные потери электроэнергии .However, in the known method of adjusting the operating current while observing the equality of the currents in the semi-chain x in some modes (with incomplete transmission load and asymmetry of the voltage of the semi-chains due to the different number of bridges included in the semi-chain), increased electric power losses occur.
С целью уменьшени потерь электроэнергии при работе электропередачи в режиме несимметрии напр жени полуцепей, вызванной разным числом включенных в полуцепь мостов, по предлагаемому способу величину рабочего тока каждой полуцепи регулируют путем воздействи на уставку регул тора тока данной полуцепи в функции от соотношени числа включенных в каждой изIn order to reduce electric power losses during transmission of electricity in the asymmetry mode of the voltage of the semi-chains caused by different numbers of bridges connected to the semi-chain, according to the proposed method, the operating current of each semi-chain is adjusted by affecting the current regulator setpoint of this semi-chain as a function of the ratio of the number of included in
полуцепей мостов и от обшей заданной нагрузки передачи, а разность токов полуцепей направл ют в рабочее заземление подстанции . При этом оптимальные значени токов в полуцеп х определ ютс на основании минимизации суммы потерь мошности в передаче, включа составл ющие, завис щие от числа включенных мостов (часть расхода собственных нужд подстанций, часть потерь в трансформаторах), завис щие от величины рабочего тока (тепловые потери в линии высокого напр жени , заземл ющих лини х и в подстанционном оборудовании , часть расхода собственных нужд подстанции) и завис щие от величины рабочего напр жени (потери на корону).bridge semi-chains and from the general predetermined load of the transmission, and the difference between the currents of the semi-chains are directed to the working ground of the substation. In this case, the optimal values of currents in the semi-chains are determined on the basis of minimizing the sum of losses of power in the transmission, including components depending on the number of bridges connected (part of substations own expense, part of transformer losses), depending on the value of operating current (thermal losses in the high voltage line, the grounding lines and in the substation equipment, part of the substation auxiliary consumption) and depending on the magnitude of the operating voltage (crown loss).
На чертеже изображена принципиальна схема выпр мительной подстанции бипол рной электропередачи посто нного тока с блок-схемой системы регулировани тока. Лини посто нного тока содержит две изолированные друг от друга полуцепи 1The drawing shows a schematic diagram of a rectifying substation of a bipolar DC transmission with a block diagram of a current control system. The line of direct current contains two isolated short circuits 1
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU711693942A SU397135A1 (en) | 1971-08-02 | 1971-08-02 | Method of regulating operating current of semi-circuits of bipolar dc power transmission line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU711693942A SU397135A1 (en) | 1971-08-02 | 1971-08-02 | Method of regulating operating current of semi-circuits of bipolar dc power transmission line |
Publications (1)
Publication Number | Publication Date |
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SU397135A1 true SU397135A1 (en) | 1980-04-15 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU711693942A SU397135A1 (en) | 1971-08-02 | 1971-08-02 | Method of regulating operating current of semi-circuits of bipolar dc power transmission line |
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SU (1) | SU397135A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2468486C2 (en) * | 2007-05-25 | 2012-11-27 | Сименс Акциенгезелльшафт | High-voltage direct current transfer device |
-
1971
- 1971-08-02 SU SU711693942A patent/SU397135A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2468486C2 (en) * | 2007-05-25 | 2012-11-27 | Сименс Акциенгезелльшафт | High-voltage direct current transfer device |
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