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文章摘要
面向光伏电站无功优化的逆变器调控策略研究
Research#$NBSon#$NBSthe#$NBSControl#$NBSStrategy#$NBSof#$NBSInverter#$NBS#$NBSReactive#$NBSPower#$NBS Optimization#$NBSfor#$NBSPV#$NBSPlant
Received:November 02, 2013  Revised:January 15, 2014
DOI：
中文关键词: 逆变器  无功调节能力  P-λ运行关系曲线  线路损耗
英文关键词: inverter, power  of reactive  regulation, P-λ curve, line  losses
基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目）
Author NameAffiliationE-mail
YU Yang* Electric Engineering School of Northeast Dianli University yyyuuu00@163.com 
HUANG Ya-feng School of Electrical and Electronic Engineering,North China Electric Power University  
YAN Gan-gui Electric Engineering School of Northeast Dianli University  
Li Long Electric Engineering School of Northeast Dianli University  
CHANG Qing-yun Electric Engineering School of Northeast Dianli University  
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中文摘要:
      本文通过构建了光伏逆变器稳态模型,分析了逆变器的运行控制关系和单级式、两极式逆变器在不同工况下的无功调节能力。以补偿光伏电站接入电网时系统所需的无功为目标,构建面向光伏电站运行的无功控制策略,分析并得出适用于光伏电站优化的P-λ运行关系曲线,从而节省配置无功补偿装置所需的费用并能降低线路损耗。文中以某光伏电站实际运行为例,对控制策略的有效性和实用性进行了评价。
英文摘要:
      A photovoltaic inverter steady-state model is built to analyze the operation control relationship of inverter and the reactive power regulation of single-stage and two stage inverters operated in different conditions. Aimed to compensate the reactive power of PV power plant connected to grid, the reactive power control strategy is given. And the photovoltaic power plants P-λ curve is analyzed to save cost for reactive power compensation device costs and reduce line losses. The effectiveness and practicality of the given control strategy is evaluated based on an actual PV power plant in Qinghai Province.
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