







摘"要:為了滿足日益增長的電力能源需求,微電網并網運行是電力系統的主要發展趨勢,其雖然能夠提升電力能源的供應,但難以保證供電質量,不利于電力系統的后續發展。該現象的產生主要是由于分布式電源出力具有隨機性與不穩定性,會對供電質量造成直接影響。對此,提出基于層次分析法的微電網并網運行電能質量安全監測模型構建研究。深入分析電能質量干擾源,以此為基礎,選取適當的電能質量安全監測指標,應用層次分析法計算電能質量安全監測指標權重數值,確定電能質量安全監測模型,制定電能質量安全判定規則,從而實現電能質量安全的準確監測。實驗數據顯示:構建模型應用后,電能質量安全監測指標完整度最大值為96%,電能質量安全監測結果與實際結果一致,充分證實了構建模型具備更好的電能質量安全監測效果。
關鍵詞:并網運行;微電網;安全監測;層次分析法;電能質量;監測指標
中圖分類號:TM714""""""文獻標識碼:A
Power"Quality""Safety"Monitoring"Model"for"Microgrid
Gridconnected"Operation"Based"on"Analytic"Hierarchy"Process
SUN"Yun1,WANG"Di2,LU"Yunyun1,ZHANG"Caiting1
(1.PetroChina"Changqing"Engineering"Design"Co.,"Ltd.,"Xi’an,"Shaanxi"710018,"China;
2.PetroChina"No.6"Oil"Production"Plant,"Xi’an,"Shaanxi"710018,China)
Abstract:In"order"to"meet"the"increasing"demand"for"power"energy,"microgrid"gridconnected"operation"is"the"main"development"trend"of"power"system."Although"it"can"improve"the"supply"of"power"energy,"due"to"the"influence"of"the"randomness"of"distributed"generation"output,"the"power"quality"will"also"decline,"which"is"not"conducive"to"the"subsequent"development"of"power"system."A"study"on"the"construction"of"microgrid"gridconnected"operation"power"quality"safety"monitoring"model"based"on"analytic"hierarchy"process"is"proposed."Deeply"analyze"the"power"quality"interference"sources,"and"on"this"basis,"select"appropriate"power"quality"safety"monitoring"indicators,"calculate"the"weight"value"of"power"quality"safety"monitoring"indicators"using"the"analytic"hierarchy"process,"determine"the"power"quality"safety"monitoring"model,"and"formulate"power"quality"safety"judgment"rules,"so"as"to"achieve"accurate"monitoring"of"power"quality"safety."The"experimental"data"shows"that"after"the"application"of"the"built"model,"the"maximum"integrity"of"the"power"quality"safety"monitoring"index"is"96%,"and"the"power"quality"safety"monitoring"results"are"consistent"with"the"actual"results,"which"fully"confirms"that"the"built"model"has"better"power"quality"safety"monitoring"effect.
Key"words:gridconnected"operation;"microgrid;"safety"monitoring;"analytic"hierarchy"process;"power"quality;"monitoring"indicators
隨著國民生產及生活對電力能源依賴性的逐漸加深,電能質量優劣直接關系著人們的方方面面。調研數據顯示:2022年電能質量問題為中國造成了100億元的經濟損失。另外,電力設備的升級與發展,使其對電能質量的要求也逐漸提高。若是電能質量較低,極有可能會導致電力設備運行出錯,從而影響電力設備發揮功能。亞洲電能質量聯盟分析結果表明:電能質量降低不但會帶來經濟方面的損失,還會影響工業設備的使用時限,致使計算機數據的丟失。……