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Anahtarlı relüktans motorunun tasarımı

A Desing of the switched reluctance motor

  1. Tez No: 39797
  2. Yazar: OSMAN DURMUŞ
  3. Danışmanlar: PROF.DR. FAİK MENGEN
  4. Tez Türü: Yüksek Lisans
  5. Konular: Elektrik ve Elektronik Mühendisliği, Electrical and Electronics Engineering
  6. Anahtar Kelimeler: Belirtilmemiş.
  7. Yıl: 1994
  8. Dil: Türkçe
  9. Üniversite: İstanbul Teknik Üniversitesi
  10. Enstitü: Fen Bilimleri Enstitüsü
  11. Ana Bilim Dalı: Belirtilmemiş.
  12. Bilim Dalı: Belirtilmemiş.
  13. Sayfa Sayısı: 57

Özet

is expected to deliver the rated torque and hence the rated output power. So, it is kept the stack length as a multiple or submultiple o-f rotor bare diameter. The conductor sise is chosen such that the available winding space will be -Filled. The resulting current den sity is calculated and checked against the maximum permis sible value, which is dependent on the cooling methods employed in the motor. If there is no restriction on the outside diameter the winding space can be calculated ?From the number o-F turns, the area o-F cross-section o-f... the conductor and the insulation thickness. The heigh of the stator pole is then derived from the winding space. The thermal capability of the motor is one of the im portant characteristics. The thermal capability is deter mined by the losses in the machine, the available surface area for cooling and additional cooling arrangements such a fan, etc The copper losses are considered first. PM machines are generally catalogued in a power range from, a few watts to around 10 kW. Various practical, considerations strongly influence the production of mac hines with higher outputs although claims are made for exploratory (synchronous) machines in the region of 50 kW. SR machines are rated from watts to megawatts. There is no known upper limit to the prospective range of torques and powers for SR drives. Designs exist for machines up to 6 MW at 50 rev/mi n. Until the advent of SR machines, there was little to challenge PM machines in many areas of application. It is perhaps for this reason that, unlike most other variable- speed systems, performance data on PM machines are often incomplete and unsatisfactory for purposes of comparison. It is therefore difficult to provide a genuine“like for like”comparison. Maximum speeds are high for both types but SR are su perior, even if for constructional reasons alone. PM» machines, especially those with surface-mounted magnets suffer from magnet retention problems at high speeds and at high vibration levels. Range of operating speeds can be wide for both but again the SR is superior because, unlike the PM case^ the motional emf can be controlled with ease. XI

Özet (Çeviri)

Possibly the most striking feature o-F switched reluc tance drive technology is the recognition which has suddenly built up concerning its applications. This is particularly remarkable in view o-F the short time which has elapsed since the reported performance and qualities of1 SR drives were greeted with disbeli-F. One reason for this change is the con-Pi rmation of the adventageous properties o-F SR drives by a variety o-F in dependent groups and companies, bringing with it appreci ation of the engineering and market opportunities which are opened up. As a consequence, it is now possible to point to advanteges which are no longer in dispute. SR drives have very good characteristics -for machine tool /spindle drives. A small drive aimed at a number of applications in the machine tool industry rated at 2,5 kfe! and a constant torque characteristic between İ750 rev/mi n and a constant power characteristic between 1750 rev/mi n and 4000 rev/min has been built in a D100 TEFC frame. A high power industrial drive has been built in a 25C frame and is capable of providing 200 kW at a base speed of 1500 rev/min with a constant power characteristic between 1500 and 2500 rev/min. The motor is trough-venti lated and controlled by a thyristor power converter. Xllis expected to deliver the rated torque and hence the rated output power. So, it is kept the stack length as a multiple or submultiple o-f rotor bare diameter. The conductor sise is chosen such that the available winding space will be -Filled. The resulting current den sity is calculated and checked against the maximum permis sible value, which is dependent on the cooling methods employed in the motor. If there is no restriction on the outside diameter the winding space can be calculated ?From the number o-F turns, the area o-F cross-section o-f... the conductor and the insulation thickness. The heigh of the stator pole is then derived from the winding space. The thermal capability of the motor is one of the im portant characteristics. The thermal capability is deter mined by the losses in the machine, the available surface area for cooling and additional cooling arrangements such a fan, etc The copper losses are considered first. PM machines are generally catalogued in a power range from, a few watts to around 10 kW. Various practical, considerations strongly influence the production of mac hines with higher outputs although claims are made for exploratory (synchronous) machines in the region of 50 kW. SR machines are rated from watts to megawatts. There is no known upper limit to the prospective range of torques and powers for SR drives. Designs exist for machines up to 6 MW at 50 rev/mi n. Until the advent of SR machines, there was little to challenge PM machines in many areas of application. It is perhaps for this reason that, unlike most other variable- speed systems, performance data on PM machines are often incomplete and unsatisfactory for purposes of comparison. It is therefore difficult to provide a genuine“like for like”comparison. Maximum speeds are high for both types but SR are su perior, even if for constructional reasons alone. PM» machines, especially those with surface-mounted magnets suffer from magnet retention problems at high speeds and at high vibration levels. Range of operating speeds can be wide for both but again the SR is superior because, unlike the PM case^ the motional emf can be controlled with ease. XIPossibly the most striking feature o-F switched reluc tance drive technology is the recognition which has suddenly built up concerning its applications. This is particularly remarkable in view o-F the short time which has elapsed since the reported performance and qualities of1 SR drives were greeted with disbeli-F. One reason for this change is the con-Pi rmation of the adventageous properties o-F SR drives by a variety o-F in dependent groups and companies, bringing with it appreci ation of the engineering and market opportunities which are opened up. As a consequence, it is now possible to point to advanteges which are no longer in dispute. SR drives have very good characteristics -for machine tool /spindle drives. A small drive aimed at a number of applications in the machine tool industry rated at 2,5 kfe! and a constant torque characteristic between İ750 rev/mi n and a constant power characteristic between 1750 rev/mi n and 4000 rev/min has been built in a D100 TEFC frame. A high power industrial drive has been built in a 25C frame and is capable of providing 200 kW at a base speed of 1500 rev/min with a constant power characteristic between 1500 and 2500 rev/min. The motor is trough-venti lated and controlled by a thyristor power converter. Xllis expected to deliver the rated torque and hence the rated output power. So, it is kept the stack length as a multiple or submultiple o-f rotor bare diameter. The conductor sise is chosen such that the available winding space will be -Filled. The resulting current den sity is calculated and checked against the maximum permis sible value, which is dependent on the cooling methods employed in the motor. If there is no restriction on the outside diameter the winding space can be calculated ?From the number o-F turns, the area o-F cross-section o-f... the conductor and the insulation thickness. The heigh of the stator pole is then derived from the winding space. The thermal capability of the motor is one of the im portant characteristics. The thermal capability is deter mined by the losses in the machine, the available surface area for cooling and additional cooling arrangements such a fan, etc The copper losses are considered first. PM machines are generally catalogued in a power range from, a few watts to around 10 kW. Various practical, considerations strongly influence the production of mac hines with higher outputs although claims are made for exploratory (synchronous) machines in the region of 50 kW. SR machines are rated from watts to megawatts. There is no known upper limit to the prospective range of torques and powers for SR drives. Designs exist for machines up to 6 MW at 50 rev/mi n. Until the advent of SR machines, there was little to challenge PM machines in many areas of application. It is perhaps for this reason that, unlike most other variable- speed systems, performance data on PM machines are often incomplete and unsatisfactory for purposes of comparison. It is therefore difficult to provide a genuine“like for like”comparison. Maximum speeds are high for both types but SR are su perior, even if for constructional reasons alone. PM» machines, especially those with surface-mounted magnets suffer from magnet retention problems at high speeds and at high vibration levels. Range of operating speeds can be wide for both but again the SR is superior because, unlike the PM case^ the motional emf can be controlled with ease. XIPossibly the most striking feature o-F switched reluc tance drive technology is the recognition which has suddenly built up concerning its applications. This is particularly remarkable in view o-F the short time which has elapsed since the reported performance and qualities of1 SR drives were greeted with disbeli-F. One reason for this change is the con-Pi rmation of the adventageous properties o-F SR drives by a variety o-F in dependent groups and companies, bringing with it appreci ation of the engineering and market opportunities which are opened up. As a consequence, it is now possible to point to advanteges which are no longer in dispute. SR drives have very good characteristics -for machine tool /spindle drives. A small drive aimed at a number of applications in the machine tool industry rated at 2,5 kfe! and a constant torque characteristic between İ750 rev/mi n and a constant power characteristic between 1750 rev/mi n and 4000 rev/min has been built in a D100 TEFC frame. A high power industrial drive has been built in a 25C frame and is capable of providing 200 kW at a base speed of 1500 rev/min with a constant power characteristic between 1500 and 2500 rev/min. The motor is trough-venti lated and controlled by a thyristor power converter. Xll

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