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Studying the Effect of Starting System in DC Motors Operating in Periodic Systems on Electric Power Losses

دراسة أثر نظام الإقلاع المستخدم في محركات التيار المستمر العاملة في الأنظمة الدورية على مفاقيد الطاقة الكهربائية

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 Publication date 2013
and research's language is العربية
 Created by Shamra Editor




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The consumption of power in the industrial field almost reaches approximately 40% of the total generated power. One kind of useless consumption of power is the losses in the electrical motors starting. The impact of the losing power might be ignored in the continuous and short time working systems. However, in case of periodic starting up, the losing ratio will be exaggerated. Also, the controlling of starting up process will be considerable and can keep the losses at lowest levels. In this paper, the effect of using the Semi-conductors controlling system in DC motors on power losses was studied and compared with control system using resistors starting in periodic short time systems. The obtained results show that there is a relationship between the power saving in KWh per year as a function of the rated motor power and the number of starting up per Hour. Due to conveying from conventional controlling system to modern control system uses semiconductor rectifier.

References used
PYRHONEN, J; JOKINEN, T; HRABOVCOVA, V. Design of Rotating Electrical Machines. John Wiley & Sons Ltd, England, 2009, 544
MILLER, R; MILLER,M.Industrial Electricity and Motor Controls. Canada, 2007,448
ASHISH, T. Modern Control Design With Matlab And Simulink. John Wiley & Sons Ltd, England, 2002, 503
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يقسم الكتاب إلى: الشبكات الكهربائية الموحدة. محطات التوليد الحرارية. القسم الكهربائي في محطات التوليد. محطات التوليد النووية. محطات التوليد المائية. محطات التوليد بالطاقة المتجددة. أساليب نقل الطاقة الكهربائية. الأبراج الهوائية لنقل القوى. ع وازل خطوط النقل. تمثيل خطوط النقل. مقدمة عامة عن محطات التحويل. المعدات الرئيسية في محطات التحويل. ترتيبات قضبان التوزيع. تأريض محطات التحويل. الأنظمة المساعدة في محطات التحويل. ملامح تخطيط شبكات التوزيع. أمثلة تطبيقية لتخطيط شبكات الجهد المتوسط. العناصر الأساسية بشبكة التوزيع. أنظمة التغذية في الجهد المتوسط. شبكات الجهد المتوسط الهوائية. دراسات هامة في شبكات التوزيع. المواد المستخدمة في صناعة الكابلات. تركيب الكابلات. الخواص الكهربائية للكابلات. اكتشاف أعطال الكابلات. الهزات العابرة في نظم القوة الكهربائية. استقرار منظومة القوى الكهربائية. التوافقيات في الشبكات الكهربائية.
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