Powered by OpenAIRE graph
Found an issue? Give us feedback

Синтез и исследование системы автоматического симметрирования токов асинхронного двигателя с преобразователем напряжения

Синтез и исследование системы автоматического симметрирования токов асинхронного двигателя с преобразователем напряжения

Abstract

Synthesis of methods for investigating unbalanced operating conditions of thyristor voltage converter fed induction motors is performed. The voltage unbalance factors of the power source are calculated, and the formation conditions are determined. Attention is paid to the harmonic analysis of the induction motor currents. The influence of power source voltage unbalance on the induction motor performance is determined on the basis of simulation and experiments. The results of power source unbalance - phase current unbalance, overload capacity reduction, oscillating nature of torque and speed, dynamics deterioration are outlined. The system of automatic balancing of the induction motor stator currents using the thyristor voltage converter is proposed. The synthesis of the elements of control channels and feedback channels of the balancing system, as well as operation principles, are examined. It is determined that balancing reduces the current unbalance factors by more than an order of magnitude, and virtually ensures the equality of the active stator currents in the induction motor phases. The benefits and drawbacks of the automatic balancing system are presented, and recommendations on its application are given.

Выполнена разработка методов исследования несимметричных режимов работы асинхронных двигателей. Определено влияние несимметрии напряжения источника питания на работу асинхронного электропривода. Предложена система автоматического симметрирования токов статора асинхронного двигателя с применением тиристорного преобразователя напряжения. Рассмотрен синтез элементов системы симметрирования и принципы ее работы, определены показатели симметрирования и даны рекомендации по применению системы. 

Виконано розробку методів дослідження несиметричних режимів роботи асинхронних двигунів. Визначено вплив несиметрії напруги джерела живлення на роботу асинхронного електроприводу. Запропоновано систему автоматичного симетрування струмів статора асинхронного двигуна із застосуванням тиристорного перетворювача напруги. Розглянуто синтез елементів системи симетрування, і принципи її роботи, визначені показники симетрування та дані рекомендації із застосування системи. 

Keywords

асинхронний двигун; тиристорний перетворювач; електропривод; несиметрія напруг; коефіцієнт несиметрії; система автоматичного симетрування, induction motor; thyristor converter; electric drive; voltage unbalance; unbalance factor; automatic balancing system, асинхронный двигатель; тиристорный преобразователь; электропривод; несимметрия напряжений; коэффициент нессиметрии; система автоматического симметрирования, УДК 62–83 : 621.313.333

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold