Analysis on Guide Vane Closure Schemes of High-Head Pumped Storage Unit during Pump Outage Condition
المؤلفون المشاركون
Zhang, Yuquan
Xu, Yanhe
Fernandez-Rodriguez, E.
Liu, Huiwen
Feng, Jun
Zheng, Yuan
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-12-31
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
When the pumping operation of pumped storage unit suffers from power outage, the hydraulic transient poses a serious threat to the safe operation of the unit and its pressure pipeline system.
For high-head pumped storage power station (PSPS), the water hammer pressure (WHP) and rotational speed rise ratio (RSRR) of each hydraulic unit will be increased during the pump outage condition.
In order to limit the fluctuation of rotational speed and WHP in power-off condition, optimizing and choosing a reasonable guide vane closure scheme (GVCS) is an economic and efficient means to improve the dynamic characteristics of pumped storage unit.
On the basis of the calculation model of the transition process of single tube-double unit type of a high-head PSPS, an optimization model of GVCS balancing WHP and RSRR objectives is established.
Furthermore, the two-stage broken line and three-stage delayed GVCSs are applied to the pump outage condition, and the nondominated sorting genetic algorithm-II (NSGA-II) is introduced to calculate the optimal solution set under different water heads and different closure schemes.
For four typical water heads, the multiobjective optimization results of the closure law show that the two-stage broken line law has a better Pareto front under high water head, while the three-stage delayed law has a better performance under low water head.
Furthermore, through the results of transition process of typical schemes, the adaptability of GVCS and water head is analyzed.
The method proposed in this paper can make the RSRR not more than −0.89, and the three-stage delayed law can even make the RSRR only −0.01.
Methods of this paper provide a theoretical basis for optimum guide vane closure mode setting of PSPS.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhang, Yuquan& Xu, Yanhe& Zheng, Yuan& Fernandez-Rodriguez, E.& Liu, Huiwen& Feng, Jun. 2019. Analysis on Guide Vane Closure Schemes of High-Head Pumped Storage Unit during Pump Outage Condition. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1197509
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhang, Yuquan…[et al.]. Analysis on Guide Vane Closure Schemes of High-Head Pumped Storage Unit during Pump Outage Condition. Mathematical Problems in Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1197509
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhang, Yuquan& Xu, Yanhe& Zheng, Yuan& Fernandez-Rodriguez, E.& Liu, Huiwen& Feng, Jun. Analysis on Guide Vane Closure Schemes of High-Head Pumped Storage Unit during Pump Outage Condition. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1197509
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1197509
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر