SU1614948A1

SU1614948A1 - Split-drive electromechanical power transmission

Info

Publication number: SU1614948A1
Application number: SU884480570A
Authority: SU
Inventors: Георгий Владимирович Новиков
Original assignee: Научно-производственное объединение по тракторостроению "НАТИ"
Priority date: 1988-09-05
Filing date: 1988-09-05
Publication date: 1990-12-23

Abstract

Изобретение относитс к т говому электроприводу многопоточных трансмиссий т говых и транспортных машин сельскохоз йственного, строительно-дорожного и специального назначени . Цель изобретени - повышение КПД. Это достигаетс переводом асинхронной машины 10 электрического канала мощности в режим машины двойного питани дл работы параллельно с синхронной машиной 7 на внешнюю нагрузку. 1 ил.The invention relates to a traction electric drive of multithreaded transmissions of traction and transport vehicles for agricultural, road construction and special purposes. The purpose of the invention is to increase efficiency. This is achieved by switching the asynchronous electrical power channel machine 10 to the dual power machine mode for operation in parallel with the synchronous machine 7 to an external load. 1 il.

Description

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разрываетс . Асинхронна машина 10 переходит в режим машины двойного питани . Тепловой двигатель 3 приходит во враш.ение и приводит во вращение обе машины 7 и iO, частоты вращени которых оказываютс взаимно св занными , а разница частот вращени - посто нной и завис щей только от передаточных отношений передач 6 и 9 и кинематического соотношени механизма 2. 10 При произвольной, но посто нной величине разницы скоростей токова нагрузка машины 10 определ етс частотой тока ротора, задаваемой преобразователем 11.torn. The asynchronous machine 10 goes into dual feed mode. The heat engine 3 comes to the opposite and causes both machines 7 and iO to rotate, the rotational frequencies of which are interrelated, and the difference in rotational frequencies is constant and dependent only on gear ratios of gears 6 and 9 and the kinematic ratio of mechanism 2. 10 With an arbitrary but constant magnitude of the difference in the speeds of the current load of the machine 10, it is determined by the frequency of the rotor current specified by the converter 11.

пот м ч ч -к-. - -- - -- результате этого работа передачиsweat m h -k-. - - - - the result of this transfer job

занный с первичным двигатапем 3 и дви- мощности в режиме электростанций воз- жител ми 4, с первым входным звеном 5 можна при любых значени х передаточных чисел механических передач, оптимальных с точки зрени работы машин в режиме т ги. При этом преобразова- асинлииннаи машпи .U, ...ос.„,..,. ......тель частоты разгружаетс от силовогоIt is connected with the primary engine 3 and the power in the mode of power plants by the drivers 4, with the first input link 5 it is possible at any values of the gear ratios of the mechanical gears, which are optimal from the point of view of the operation of the machines in the thrust mode. At the same time, the conversion of the asynliinna and mashpi .U, ... os. „, ..,. ...... tel frequency unloaded from power

ду собой посредством преобразовател П 20 тока, что способствует увеличению его частоты и контактов 12- 5 переключа-надежности, ток асинхронной машиныby means of a current transformer P 20, which contributes to an increase in its frequency and switching power contacts 12-5, asynchronous machine current

тел контакты 15 которого соедин ютполучает возможность мен тьс при изфазь обмотки ротора машины 10 междуменении тока нагрузки, и КПД ас инхронсобой накоротко О машины и всей электрической частиThe body of the contacts 15 which connects gives you the opportunity to change when the rotor winding of the machine 10 is interchanged between the load current, and the efficiency of the machine by the short circuit of the machine and the whole electrical part

Передача мощности работает следую- 35 передачи мощности повышаетс , щим образом.The power transfer works as follows: power transfer is increased in the same way.

Claims

In stator mode, stator windings.

the asynchronous machine 10 is connected by pins 13 c. the output of the converter is 11 frequencies, and the rotor is closed by koi-, ..., clock cycles 15 among themselves. Thermal motor differential mechanism and

associated with two of its input links, micron synchronous connected to the terminals of external load and asynchronous electric machines of alternating current.

The invention relates to a traction motor drive, more precisely, to power transmissions of vehicles and trailers for agricultural road construction and special purposes.

The purpose of the invention is to increase transmission efficiency.

The drawing shows a schematic diagram of a two-stream electromechanical power transmission with AC machines.

A two-line electromechanical transmission of power 1 includes a planetary differential mechanism 2, of which a synchronous machine 7 is connected via a transmission 6 transmission, and with a second input link 8 via an transmission 9 an asynchronous machine 10 interconnected by an two-channel electromechanical

power transfer, containing the planter 3, is rotated and transmits power to the dwelling and four streams: mechanical and electrically m. moreover, the power from the generator (synchronous machine 7) is transmitted by the two-wheel drive 10,

to the input element 8 of the mechanism 2 and the non-35 frequency generator and contacts directly from the engine 3 to the input switch, characterized in that

link 5. Regulation of the speed osu-in order to increase the transmission, asynchronous

the machine is made with a phase rotor, its stator winding is connected to

1 is controlled by adjusting the frequency of rotation of the machine 10 by means of a frequency converter 11.

In the power plant mode, the stator windings of the asynchronous machine 10 are disconnected by pins 13 from the output terminals of the converter 11 to are connected by pins 12 in parallel with the stator core.

external load mothers through make contacts and to the output terminals of the frequency converter by means of breaker contact contacts, and a rotor winding is connected

...-. -. - - converter output terminals

The hubs of the rotor guides are 45 by means of closing contacts, they are made by contacts 14 to the output terminal of the switch and for connecting short-circuiting the converter 11, the connection being opened by the contacts of the body 15.

, .., tare differential mechanism and

Double flow electromechanical

power transfer containing a synchronized synchronous connected to the terminals of an external load and asynchronous AC electric machines connected to its two input links; u.

,

Forming the frequency and the contacts of the switch, characterized in that,

interconnected by

the machine is made with a phase rotor, its stator winding is connected to the terminal