一種光伏發電用35kV組合式變壓器的設計
陳挺，施英
(福州天宇電氣股份有限公司，福建 福州 350012)
摘 要： 結合一例光伏發電站用就地升壓變壓器的設計，研發了一種光伏發電用35 kV 組合式變壓器。給出了產品的外形結構、本體結構的選取和主要元器件的參數，并分析了在電磁計算、器身設計和低壓柜設計時的設計要點。對產品的計算值與試驗數據進行了對比，結果表明：采用軸向雙分裂結構的組合式變壓器其空載損耗、負載損耗、穿越阻抗均在偏差范圍內，滿足工程設計的需要。
關鍵詞： 光伏發電；分裂變壓器；組合式變壓器；設計
中圖分類號：TM402 文獻標識碼：A 文章編號：1007-3175(2015)03-0027-05
Design of a Kind of 35 kV Combined Transformer for Photovoltaic Power
CHEN Ting, SHI Ying
（Fuzhou Tianyu Electric Co., Ltd, Fuzhou 350012, China）
Abstract: Based on an example of in-place step-up transformer in the photovoltaic power station, this paper developed a kind of 35 kV combined transformer for photovoltaic power, giving the outline structure of transformer, the selection of transformer’s body structure and the parameters of main components and analyzing the key design points about electromagnetic calculation, body design and low-voltage switchgear design. The calculated value of the product was compared with the testing data. The results show that the excitation loss, load loss and crossing impedance of composite type transformer adopting axial direction double split structure are in the range of deviation, which meets the requirement of engineering design.
Key words: photovoltaic power; transformer with split windings; combined transformer; design
參考文獻
[1] GB/T 19939-2005 光伏系統并網技術要求[S].
[2] GB 50797-2012 光伏發電站設計規范[S].
