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

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    基于PSS/E BKDY模塊考慮動(dòng)態(tài)負(fù)荷的程序研究與開發(fā)

    來(lái)源:電工電氣發(fā)布時(shí)間:2017-12-20 10:20 瀏覽次數(shù):2
    基于PSS/E BKDY模塊考慮動(dòng)態(tài)負(fù)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(lán)天燃?xì)鉄犭娪邢薰?,江蘇 蘇州 215024)
     
        摘 要:為更符合實(shí)際地評(píng)估斷路器的開斷能力裕度,需要考慮感應(yīng)電動(dòng)機(jī)對(duì)短路電流的貢獻(xiàn)。以C++語(yǔ)言編程為依托,實(shí)現(xiàn)節(jié)點(diǎn)類型的轉(zhuǎn)換、負(fù)荷分配的計(jì)算以及感應(yīng)電動(dòng)機(jī)參數(shù)BKD文件形式的導(dǎo)出等功能。利用“膠水”語(yǔ)言Python的良好粘合性及可移植性作為中間粘合劑實(shí)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(dòng)態(tài)負(fù)荷的短路電流衰減計(jì)算。利用改進(jìn)模塊和PSS/E暫態(tài)穩(wěn)定模塊,考慮動(dòng)態(tài)負(fù)荷對(duì)經(jīng)典三機(jī)九節(jié)點(diǎn)電網(wǎng)進(jìn)行了短路電流周期分量衰減計(jì)算,兩者的計(jì)算結(jié)果非常接近,表明改進(jìn)模塊具有較強(qiáng)的精準(zhǔn)性及實(shí)用性。
        關(guān)鍵詞:短路電流;周期分量;感應(yīng)電動(dòng)機(jī);C++ 語(yǔ)言;PSS/E BKDY模塊
        中圖分類號(hào):TM713     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):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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