ЭНЕРГОСБЕРЕГАЮЩИЕ РЕЖИМЫ ОРОСИТЕЛЬНЫХ НАСОСНЫХ СТАНЦИЙ С СИНХРОННЫМ ЭЛЕКТРОПРИВОДОМ
SENKRON ELEKTRIK SÜRÜCÜLÜ SULAMA POMPA ISTASYONLARININ ENERJI TASARRUFLU MODLARI
- Tez No: 946327
- Danışmanlar: PROF. DR. TULYAGAN KAMALOV
- Tez Türü: Doktora
- Konular: Elektrik ve Elektronik Mühendisliği, Electrical and Electronics Engineering
- Anahtar Kelimeler: enerji tasarruflu mod, sulama pompa istasyonu, pompa ünitesi, senkron motor, elektrikli sürücü, frekans konvertorü, frekans kontrolü, matematiksel model, blok diyagram, transfer fonksiyonu. Tezin objesi senkron motorlu sulama pompa istasyonları olup
- Yıl: 2010
- Dil: Rusça
- Üniversite: The Instıtute Of Energy Problems Academy Of Scıences Of Uzbekıstan
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Elektrik-Elektronik Mühendisliği Ana Bilim Dalı
- Bilim Dalı: Elektrik Elektronik Mühendisliği Bilim Dalı
- Sayfa Sayısı: Belirtilmemiş.
Özet
ERKIN OĞLU ZIYODULLA YUSUPOV'in 05.14.01 –“Enerji sistemleri ve kompleksleri”uzmanlık alanında doktora (Ph.D) derecesi için“Senkron elektrik sürücülü sulama pompa istasyonlarinin enerji tasarruflu modlari”konuyla ilgili TEZİN ÖZETİ
Özet (Çeviri)
ENERGY-SAVING MODES OF IRRIGATION PUMPING STATIONS WITH SYNCHRONOUS ELECTRIC DRIVE ABSTRACT OF THE THESIS The object of the thesis is irrigation pumping stations with synchronous motors. The purpose of the research is to develop an energy-saving mode for the pumping station based on synchronous motors operating with the combined method. Research methods include: electric drive theory, electric machines, hydromechanics, automatic control theories and mathematical simulation of systems. During the studies, the following results have obtained: • The system has been developed to regulate the productivity of the pumping station based on synchronous motors by the combined method, with the determination of voltage and excitation current control laws. • Mathematical models and block diagrams of energy saving modes of pump units' synchronous motors for fixed and variable frequency control have been developed. • The determining parameters of the frequency increase sampling step for the acceleration and deceleration of the synchronous motor by controlling the frequency of the frequency converter in the“frequency converter - motor - pump - pressure pipeline”system are defined taking into account the water hammer. • Mathematical models of a frequency converter with a voltage inverter and on their basis a two-channel block diagram have been developed. The implementation and economic efficiency of the work: The results of the research were presented in the form of proposals for the project for the reconstruction and rehabilitation of the Karshi pumping stations and the large pumping stations in the Amu-Bukhara machine channel. The project includes recommendations for performance control of the soft start of electric motors and the use of pump systems based on frequency-controlled electric drives. Calculation of the feasibility study of additional costs for frequency regulation of the performance of pumping units of the project PTEO“Revision and restoration repair of Karshi pumping stations”was carried out. The economic impact from the introduction of a frequency-controlled electric drive to control the performance of the pumping units would be 646,000,000 som with a payback period of 1.37 years.