پايان نامه تحقيقي وبر سيستم تحريك راه انداز ژنراتورهاي نوع Ty

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     پايان نامه  تحقيقي وبر سيستم تحريك  راه انداز ژنراتورهاي نوع Ty

فهرست
عنوان                                                                                                                                                                            صفحه
  ژنراتور                                                                                                                 2
    ماشين سنكرون                                                                                                     4-3
دور نمائي از ژنراتور                                                                                               4
استاتور                                                                                                              4
پوسته                                                                                                                5
سيم پيچ استاتور                                                                                                    6
روتور                                                                                                                7
بدنهء روتور                                                                                                         8
سيم پيچ خفه كننده                                                                                                 9
حلقه هاي جمع كننده                                                                                            10-9
هوا كشها                                                                                                            10
سيستم خنك كننده                                                                                                10
  مسير هوا خنك كن در استاتور                                                                                 11-10
مسير هوا خنك كن در روتور                                                                                   11
  فيلترهاي جبران كنندهء هوا                                                                                     12-11
كولرها                                                                                                                12
ياتاقانها                                                                                                               13
فهرست
عنوان                                                                                                                                                                                 صفحه
روغن كاري                                                                                                            13
كنترل نظارت حرارتي توربين                                                                                        13
رينگهاي لغزشي و نگهدارنده هاي زغالي                                                                          13
بهره برداري                                                                                                              14
بهره برداري كلّي                                                                                                        14
سيم پيچ استاتور                                                                                                        14
روتور                                                                                                                     15
هسته استاتور                                                                                                            15
پايداري و تثبيت وضعيت                                                                                            15
اختلاف انبساط سيم پيچ استاتور و هسته آن                                                                     15
لرزشها و ارتعاشات                                                                                                    16
راه اندازي ،بارگيري و تريپ                                                                                         16
ملاحضات                                                                                                                16
پيش راه اندازي                                                                                                          17
اخطار                                                                                                                      17
راه اندازي                                                                                                            18-17
دستور العمل هاي سنكرون شدن                                                                                     18
بهره برداري به هنگام پارالل                                                                                           19
تغيير در بار راكتيو                                                                                                       19
تريپ يا قطع مدار                                                                                                       19
تريپ نرمال                                                                                                               19
تنظيم اتوماتيك ولتاژ                                                                                                  20
تنظيم دستي ولتاژ                                                                                                        20
بهره برداري در فركانس بالا                                                                                           20
بهره برداري در فركانس كم                                                                                           20
خروج از حالت سنكرون                                                                                              21
قطع ميدان تحريك                                                                                                     22

عنوان                                                                                                                                                                                 صفحه
تريپ همزمان                                                                                                            22
تريپ ژنراتور       22
تريپ كليد اصلي ژنراتور                                                                                               22
تريپ ترتيبي                                                                                                              22
تريپ دستي                                                                                                               23
برگشت اصلي وتريپ                                                                                                   23
برگشت دستي                                                                                                           23
حفاظت هاي ژنراتور                                                                                               24-23
پلاك مشخصات ژنراتور                                                                                          25-24
تصوير ژنراتور                                                                                                           26
بخش دوّم                                                                                                                 27
مقدمه سيستم تحريك                                                                                              29-28
تحليل سيستم تحريك                                                                                             31-30
پل تريستوري                                                                                                            31
ولتاژ ،جريان نامي                                                                                                        32
مقادير نامي سيستم تحريك                                                                                            33
مقادير نامي ترانس تحريك                                                                                             34
فيوز ها                                                                                                                    34
اسنابر                                                                                                                     35
كروبار                                                                                                                    35
مقاومت تخليه                                                                                                          36
حفاظت هاي كانورتر                                                                                                   36
فيوز                                                                                                                        36
حفاظت ماكزيمم جريان لحظه اي                                                                                    36
حفاظت اضافه جريان تأخيري                                                                                         37
حفاظت جريان نامتعادل                                                                                               38
قسمت كنترلي                                                                                                       40-39
كارت هاي سيستم                                                                                                  42-40

عنوان                                                                                                                                                                                  صفحه
دياگرام تنظيم                                                                                                            42
فاز شيفتر و طراحي آن                                                                                                43
آتش گيت تريستور ها                                                                                             46-44
تست تريستور وزواياي آتش آن                                                                                 47-46
ساختار نرم افزا ر                                                                                                   48-47
توابع رگولاتور                                                                                                     49-48
كنترل ريداندانت                                                                                                      49
پايانهء عيب يابي                                                                                                   50-49
نرم افزار پي سي ترم                                                                                                   51
فشرده اي از سيستم تحريك با شبكه                                                                          63-52
تصاوير سيستم تحريك                                                                                           65-63
بخش سوّم                                                                                                          66
سيستم راه انداز                                                                                                          67
سيستم راه انداز نيروگا ه                                                                                           69-68
معايب و مزايا                                                                                                            69
مشخّصات سيستم                                                                                                       69
بررسي قسمت هاي مختلف سيستم                                                                            74-70
شرح عملكرد كارت ها                                                                                           81 -75
مشخصات ترانس سيستم راه انداز                                                                                    82
نحوهء عملكرد وحلقهء اصلي كنترل در سيستم راه انداز                                                     86-83
حفاظت هاي داخلي پانل                                                                                               87
حفاظت هاي خارجي پانل                                                                                             87
خطاي باس                                                                                                              89
تصاوير                                                                                                              94-90
منابع ومراجع                                                                                                           95
ماشين سنكرون
ماشين سنكرون سه فاز، ماشيني دوار است متشكل از  يك استاتور سه فاز كه سيم پيچ شده است و در شكافهاي هسته با فواصل يكنواخت چيده شده كه مدار آرميچري ناميده ميشود.يك روتور با ميداني سيم پيچ كه در شكافهاي هسته توزيع شده و دريك مدار تك فاز قرار گرفته تحريك ناميده ميشود.استاتور و روتور بوسيله فضاي هوا (فرمينگ هو) از هم جدا ميشوند كه شكاف هوا ناميده ميشود. اصل كار براساس پديده اسنتاج الكترومغناطيسي مي باشد. جريان مستقيم كه در ميدان تحريك درجريان است، ميداني مغناطيسي ساكني را توليد ميكند. وقتي كه ميدان تحريك مي چرخد، حوزه مغناطيسي براي استاتور بعنوان يك حوزه مغناطيسي دوار ظاهر ميشود كه در سطح تغيير ميكند. با بيرون آمدن از قطبهاي روتور، جريان (فلو) مغناطيسي، درون دندانه هاي استاتور جريان مي يابد و مدار مغناطيسي بر روي يوغ استاتور بسته ميشود.