Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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基于PSS/E BKDY模塊考慮動態(tài)負荷的程序研究與開發(fā)

來源:電工電氣發(fā)布時間:2017-12-20 10:20 瀏覽次數(shù):2
基于PSS/E BKDY模塊考慮動態(tài)負荷的程序研究與開發(fā)
 
王曉虎,閆宇星
(蘇州工業(yè)園區(qū)藍天燃氣熱電有限公司,江蘇 蘇州 215024)
 
    摘 要:為更符合實際地評估斷路器的開斷能力裕度,需要考慮感應(yīng)電動機對短路電流的貢獻。以C++語言編程為依托,實現(xiàn)節(jié)點類型的轉(zhuǎn)換、負荷分配的計算以及感應(yīng)電動機參數(shù)BKD文件形式的導出等功能。利用“膠水”語言Python的良好粘合性及可移植性作為中間粘合劑實現(xiàn)C++程序與PSS/E內(nèi)置各功能程序的結(jié)合,完成PSS/E BKDY模塊考慮動態(tài)負荷的短路電流衰減計算。利用改進模塊和PSS/E暫態(tài)穩(wěn)定模塊,考慮動態(tài)負荷對經(jīng)典三機九節(jié)點電網(wǎng)進行了短路電流周期分量衰減計算,兩者的計算結(jié)果非常接近,表明改進模塊具有較強的精準性及實用性。
    關(guān)鍵詞:短路電流;周期分量;感應(yīng)電動機;C++ 語言;PSS/E BKDY模塊
    中圖分類號:TM713     文獻標識碼:A     文章編號:1007-3175(2017)12-0026-07
 
Research and Development of Program Considering Dynamic Load Based on PSS/E BKDY Module
 
WANG Xiao-hu, YAN Yu-xing
(Suzhou Industrial Park Blue Sky Gas Cogen-Power Co., Ltd, Suzhou 215024, China)
 
    Abstract: In order to evaluate the breaking capacity margin of the circuit breaker more accurately, it is necessary to consider the contribution of induction motor to short-circuit current. Taking the C++ language programming as the basis, the system realized the conversion of node types, the calculation of load distribution and the export of induction motor parameters in BKD file form etc functions. Because the C++ program couldn’t be directly compatible with the PSS/E’s built-in program, therefore the "glue" language Python, which had good adhesion and portability, was used as an intermediate binder to achieve the combination of C++ program and PSS/E built-in function program. The calculation about the attenuation of short-circuit current could be completed through the PSS/E BKDY module under considering the dynamic load. This paper used both the improved PSS/E BKDY module and PSS/E transient stability module and considered the dynamic load to carry out the short-circuit current periodic component attenuation calculation for the classic three-machine nine-node grid. The very close calculated results show that the improved module possesses the stronger accuracy and practicability.
    Key words: short-circuit current; periodic component; induction motor; C++ language; PSS/E BKDY module
 
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