电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2015年
2期
119-125
,共7页
刘胜利%曹阳%冯跃亮%潘白浪%高英
劉勝利%曹暘%馮躍亮%潘白浪%高英
류성리%조양%풍약량%반백랑%고영
配电网%投资效益评价%投资决策%模型
配電網%投資效益評價%投資決策%模型
배전망%투자효익평개%투자결책%모형
distribution network%investment effectiveness evaluation%investment decisions%models
目前，配电网评价体系往往偏重于规划成效、安全性、可靠性等某一方面的内容，项目的可行性研究报告缺乏对项目的投资效益的论证，在投资决策方面也往往仅根据历史数据进行简单的比例分配。针对上述问题，从配电总体投资效益，单体项目投资效益，投资决策等方面全方位地建立了35 kV及以下配电网投资效益评价与决策模型。提出19项用于评价单体项目投资效益的新指标、计算指标得分的评分函数、计算配电网总体投资和单体项目投资效益得分的评价模型，根据投资效益评价得分高低判断配电网总体投资效益优良和安排单体项目投资优先顺序。提出以电网规模和售电量为基础，以年度单体项目投资效益评价得分高低为导向的年度投资决策模型。以某地区所辖供电公司35 kV及以下配电网及下年度项目为例，验证了该模型科学实用性，对建立以投资效益为导向的配电网评价与投资决策工作体系有重要意义。
目前，配電網評價體繫往往偏重于規劃成效、安全性、可靠性等某一方麵的內容，項目的可行性研究報告缺乏對項目的投資效益的論證，在投資決策方麵也往往僅根據歷史數據進行簡單的比例分配。針對上述問題，從配電總體投資效益，單體項目投資效益，投資決策等方麵全方位地建立瞭35 kV及以下配電網投資效益評價與決策模型。提齣19項用于評價單體項目投資效益的新指標、計算指標得分的評分函數、計算配電網總體投資和單體項目投資效益得分的評價模型，根據投資效益評價得分高低判斷配電網總體投資效益優良和安排單體項目投資優先順序。提齣以電網規模和售電量為基礎，以年度單體項目投資效益評價得分高低為導嚮的年度投資決策模型。以某地區所轄供電公司35 kV及以下配電網及下年度項目為例，驗證瞭該模型科學實用性，對建立以投資效益為導嚮的配電網評價與投資決策工作體繫有重要意義。
목전，배전망평개체계왕왕편중우규화성효、안전성、가고성등모일방면적내용，항목적가행성연구보고결핍대항목적투자효익적론증，재투자결책방면야왕왕부근거역사수거진행간단적비례분배。침대상술문제，종배전총체투자효익，단체항목투자효익，투자결책등방면전방위지건립료35 kV급이하배전망투자효익평개여결책모형。제출19항용우평개단체항목투자효익적신지표、계산지표득분적평분함수、계산배전망총체투자화단체항목투자효익득분적평개모형，근거투자효익평개득분고저판단배전망총체투자효익우량화안배단체항목투자우선순서。제출이전망규모화수전량위기출，이년도단체항목투자효익평개득분고저위도향적년도투자결책모형。이모지구소할공전공사35 kV급이하배전망급하년도항목위례，험증료해모형과학실용성，대건립이투자효익위도향적배전망평개여투자결책공작체계유중요의의。
Currently, the distribution network evaluation system is often biased towards a particular aspect such as content planning effectiveness, safety, reliability, etc. The project’s feasibility study is lack of the demonstration of a project’s investment efficiency. And investment decisions are often only simply based on historical data. Facing with these problems, this paper concerns the aspects of the overall investment effectiveness, single project investment effectiveness, investment decisions and establishes the investment effectiveness evaluation and decision-making model of 35 kV or below. This model proposes 19 new indicators to evaluate the effectiveness of single project investment, and gives out the scoring function of calculating the index score. It also gives out evaluation model of calculating distribution network’s scores of the overall investment and monomer investment’s efficiency. According to the investment effectiveness evaluation scores, it determines the level of overall investment effectiveness and set priorities of single project investment. This paper also proposes annual investment decision model based on the grid scale and electricity sales and the score level of annual single project investment benefit. A 35 kV distribution network is taken as an example to test and verify the scientific usefulness of the model. It has great significance to the distribution network’s evaluation and investment decisions.
