本文主要研究内容
作者唐惠玲（2019）在《新能源环境下配电网线损和电压协同管理策略研究》一文中研究指出：能源和环境危机使风能和太阳能等可再生能源日益受到人们的关注,电动汽车零排放的特性也使得它正逐步成为汽车行业发展的新趋势。可再生能源发电出力受天气、地理位置以及季节变换等因素的影响而具有间歇性和不确定性,用户用车行为的不确定性也使电动汽车充电行为具有随机性。这些不确定性严重影响到分布式电源配电网的安全性。储能系统以其“源-荷”特性使得其可在两者之间实时切换,可以作为抑制可再生能源间歇出力的装置。新能源配电网是可再生能源、电动汽车和储能装置并存的系统,如何解决“源-荷-车-储”并存环境下配电网的线损和电压协同管理,保证分布式电源配电网的安全,已成为电力行业亟待解决的问题。本研究基于模糊集和锥规划相关理论,从新能源配电网的线损和电压协同管理的角度出发,针对新能源环境下配电网运行特点,研究了分布式电源出力的不确定性、电动汽车充电不确定性和负荷功率不确定性对配电网潮流分布的影响,综合考虑各种不确定性因素,建立多种协同管理模型及求解算法,较为系统地解决新能源环境下配电网线损和电压协同管理问题:(1)针对配电网中降损减压是一对相互制约的矛盾行为,进行线损和电压协同优化管理研究。分析配电网有功损耗与节点电压之间的关系模型,以DGs的出力作为控制变量,构建以线损指数最小和电压偏移指数小化为目标函数的多目标协调优化模型,比较PSO和模拟退火粒子群算法(SAPSO)两种优化算法的优略,并在EVs的两种充电模式下把SAPSO应用于多目标协调优化模型优化,得到新能源配电网线损和电压协同管理的最佳方案。以IEEE-118配电网验证了优化模型和算法是有效的。(2)针对并入分布式电源和电动汽车配电网的线损和电压协同优化管理问题,引入随机二阶锥规划方法,将电动汽车随机充电负荷和传统负荷分开考虑,实现优化管理。考虑节能减排和电网运行安全因素,以配电网的总线路损耗最小为目标函数,考虑系统运行约束,按照随机二阶锥规划的思想,将目标函数分解为两部分,一是配电网传统负荷运行时引起的线路损耗,二是电动汽车随机负荷引起的线路损耗,构造以分布式电源输出功率为优化变量的随机二阶锥规划模型。基于蒙特卡罗模拟电动汽车的负荷,嵌入内点法来求解随机二阶锥规划的模型。以IEEE-69配电系统为例验证了所提方法的有效性。(3)针对新能源环境下配电网中不确定因素风速、光照强度和电动汽车充电负荷等的随机模糊特性,基于概率统计及模糊集的相关理论对新能源配电网的线损和电压协同管理进行研究。首先根据随机模糊相容性原理,将不确定因素风速、光照强度和电动汽车充电负荷等的概率密度函数转化为可能性分布函数,再结合风机的风速-功率关系、光伏发电机的光照强度-功率关系得到风电机组和光伏发电机组有功出力的可能性分布函数,使得风力发电功率、光电发电功率和电动汽车充电功率变成了同时具备了随机性和模糊性的随机模糊变量,并建立包含有随机模糊变量的线损和电压协同管理的随机模糊机会约束规划数学模型,采用改进NSGA-Ⅱ算法求解随机模糊优化模型。最后以改进的IEEE-33配电网模型验证了该方案的有效性。(4)针对新能源配电网中DGs出力和EVs充电的不确定性引发的风险,基于CVaR风险评估模型的线损和电压风险指标,以DGs出力作为控制变量,建立以线损和电压风险为约束条件的线损和电压偏移最小多目标协同优化模型,通过变量替换将原优化模型转化为二阶锥规划模型,用原对偶内点法求解。以IEEE-118配电系统测试了本方法的有效性。
Abstract
neng yuan he huan jing wei ji shi feng neng he tai yang neng deng ke zai sheng neng yuan ri yi shou dao ren men de guan zhu ,dian dong qi che ling pai fang de te xing ye shi de ta zheng zhu bu cheng wei qi che hang ye fa zhan de xin qu shi 。ke zai sheng neng yuan fa dian chu li shou tian qi 、de li wei zhi yi ji ji jie bian huan deng yin su de ying xiang er ju you jian xie xing he bu que ding xing ,yong hu yong che hang wei de bu que ding xing ye shi dian dong qi che chong dian hang wei ju you sui ji xing 。zhe xie bu que ding xing yan chong ying xiang dao fen bu shi dian yuan pei dian wang de an quan xing 。chu neng ji tong yi ji “yuan -he ”te xing shi de ji ke zai liang zhe zhi jian shi shi qie huan ,ke yi zuo wei yi zhi ke zai sheng neng yuan jian xie chu li de zhuang zhi 。xin neng yuan pei dian wang shi ke zai sheng neng yuan 、dian dong qi che he chu neng zhuang zhi bing cun de ji tong ,ru he jie jue “yuan -he -che -chu ”bing cun huan jing xia pei dian wang de xian sun he dian ya xie tong guan li ,bao zheng fen bu shi dian yuan pei dian wang de an quan ,yi cheng wei dian li hang ye ji dai jie jue de wen ti 。ben yan jiu ji yu mo hu ji he zhui gui hua xiang guan li lun ,cong xin neng yuan pei dian wang de xian sun he dian ya xie tong guan li de jiao du chu fa ,zhen dui xin neng yuan huan jing xia pei dian wang yun hang te dian ,yan jiu le fen bu shi dian yuan chu li de bu que ding xing 、dian dong qi che chong dian bu que ding xing he fu he gong lv bu que ding xing dui pei dian wang chao liu fen bu de ying xiang ,zeng ge kao lv ge chong bu que ding xing yin su ,jian li duo chong xie tong guan li mo xing ji qiu jie suan fa ,jiao wei ji tong de jie jue xin neng yuan huan jing xia pei dian wang xian sun he dian ya xie tong guan li wen ti :(1)zhen dui pei dian wang zhong jiang sun jian ya shi yi dui xiang hu zhi yao de mao dun hang wei ,jin hang xian sun he dian ya xie tong you hua guan li yan jiu 。fen xi pei dian wang you gong sun hao yu jie dian dian ya zhi jian de guan ji mo xing ,yi DGsde chu li zuo wei kong zhi bian liang ,gou jian yi xian sun zhi shu zui xiao he dian ya pian yi zhi shu xiao hua wei mu biao han shu de duo mu biao xie diao you hua mo xing ,bi jiao PSOhe mo ni tui huo li zi qun suan fa (SAPSO)liang chong you hua suan fa de you lve ,bing zai EVsde liang chong chong dian mo shi xia ba SAPSOying yong yu duo mu biao xie diao you hua mo xing you hua ,de dao xin neng yuan pei dian wang xian sun he dian ya xie tong guan li de zui jia fang an 。yi IEEE-118pei dian wang yan zheng le you hua mo xing he suan fa shi you xiao de 。(2)zhen dui bing ru fen bu shi dian yuan he dian dong qi che pei dian wang de xian sun he dian ya xie tong you hua guan li wen ti ,yin ru sui ji er jie zhui gui hua fang fa ,jiang dian dong qi che sui ji chong dian fu he he chuan tong fu he fen kai kao lv ,shi xian you hua guan li 。kao lv jie neng jian pai he dian wang yun hang an quan yin su ,yi pei dian wang de zong xian lu sun hao zui xiao wei mu biao han shu ,kao lv ji tong yun hang yao shu ,an zhao sui ji er jie zhui gui hua de sai xiang ,jiang mu biao han shu fen jie wei liang bu fen ,yi shi pei dian wang chuan tong fu he yun hang shi yin qi de xian lu sun hao ,er shi dian dong qi che sui ji fu he yin qi de xian lu sun hao ,gou zao yi fen bu shi dian yuan shu chu gong lv wei you hua bian liang de sui ji er jie zhui gui hua mo xing 。ji yu meng te ka luo mo ni dian dong qi che de fu he ,qian ru nei dian fa lai qiu jie sui ji er jie zhui gui hua de mo xing 。yi IEEE-69pei dian ji tong wei li yan zheng le suo di fang fa de you xiao xing 。(3)zhen dui xin neng yuan huan jing xia pei dian wang zhong bu que ding yin su feng su 、guang zhao jiang du he dian dong qi che chong dian fu he deng de sui ji mo hu te xing ,ji yu gai lv tong ji ji mo hu ji de xiang guan li lun dui xin neng yuan pei dian wang de xian sun he dian ya xie tong guan li jin hang yan jiu 。shou xian gen ju sui ji mo hu xiang rong xing yuan li ,jiang bu que ding yin su feng su 、guang zhao jiang du he dian dong qi che chong dian fu he deng de gai lv mi du han shu zhuai hua wei ke neng xing fen bu han shu ,zai jie ge feng ji de feng su -gong lv guan ji 、guang fu fa dian ji de guang zhao jiang du -gong lv guan ji de dao feng dian ji zu he guang fu fa dian ji zu you gong chu li de ke neng xing fen bu han shu ,shi de feng li fa dian gong lv 、guang dian fa dian gong lv he dian dong qi che chong dian gong lv bian cheng le tong shi ju bei le sui ji xing he mo hu xing de sui ji mo hu bian liang ,bing jian li bao han you sui ji mo hu bian liang de xian sun he dian ya xie tong guan li de sui ji mo hu ji hui yao shu gui hua shu xue mo xing ,cai yong gai jin NSGA-Ⅱsuan fa qiu jie sui ji mo hu you hua mo xing 。zui hou yi gai jin de IEEE-33pei dian wang mo xing yan zheng le gai fang an de you xiao xing 。(4)zhen dui xin neng yuan pei dian wang zhong DGschu li he EVschong dian de bu que ding xing yin fa de feng xian ,ji yu CVaRfeng xian ping gu mo xing de xian sun he dian ya feng xian zhi biao ,yi DGschu li zuo wei kong zhi bian liang ,jian li yi xian sun he dian ya feng xian wei yao shu tiao jian de xian sun he dian ya pian yi zui xiao duo mu biao xie tong you hua mo xing ,tong guo bian liang ti huan jiang yuan you hua mo xing zhuai hua wei er jie zhui gui hua mo xing ,yong yuan dui ou nei dian fa qiu jie 。yi IEEE-118pei dian ji tong ce shi le ben fang fa de you xiao xing 。
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论文详细介绍
论文作者分别是来自广东工业大学的唐惠玲，发表于刊物广东工业大学2019-07-12论文，是一篇关于新能源配电网论文,线损和电压协同管理论文,分布式电源论文,电动汽车论文,随机二阶锥规划论文,广东工业大学2019-07-12论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自广东工业大学2019-07-12论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：新能源配电网论文; 线损和电压协同管理论文; 分布式电源论文; 电动汽车论文; 随机二阶锥规划论文; 广东工业大学2019-07-12论文;