Volume 14, Issue 4 (2015)                   MJEE 2015, 14(4): 40-51 | Back to browse issues page

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Movahhed Ghodsinya S R, Yazdian Varjani A, Mohamadian M, Beiranvand R. Optimal Utilization of the Delta Conversion UPS. MJEE. 14 (4) :40-51
URL: http://mjee.modares.ac.ir/article-17-9056-en.html
1- PhD candidate, Tarbiat Modares University, Faculty of Electrical and Computer Engineering, Tehran, Iran.
2- Assistant Professor, Tarbiat Modares University, Faculty of Electrical and Computer Engineering, Tehran, Iran.
3- Associate Professor, Tarbiat Modares University, Faculty of Electrical and Computer Engineering, Tehran, Iran.
Abstract:   (3709 Views)
  In this paper, a new configuration for delta conversion UPS is proposed, which could help the system for better utilization of the UPS inverters. In this configuration, parallel and series inverters of the conventional delta conversion UPS, under the grid fault conditions, are connected in parallel which help to share the load power and this results in utilizing the series inverter during fault mode. Therefore, using this configuration not only decreases the total capacity of the UPS inverters, but also decreases the system total cost. In the proposed configuration, two inverters have the same sizes and specifications which results in the system modularity that simplifies its implementation and maintenance and reduces the manufacturing and life cycle cost of the UPS system. In addition, the proposed configuration increases the system reliability. To illustrate proper operation of the proposed configuration, some simulations are carried out under the different conditions. The given simulation results validate appropriate operation of the proposed configuration.
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Received: 2016/10/18 | Accepted: 2015/01/21 | Published: 2017/01/14

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