电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
Power System Protection and Control
2015年
18期
31-36
,共6页
冮明颖%鲁宝春%姜丕杰%于常武
冮明穎%魯寶春%薑丕傑%于常武
강명영%로보춘%강비걸%우상무
广义Tellegen定理%小扰动定理%潮流计算
廣義Tellegen定理%小擾動定理%潮流計算
엄의Tellegen정리%소우동정리%조류계산
generalized Tellegen's theorem%small disturbance theorem%power flow calculation
广义Tellegen定理与物理系统属性无关,只与物理系统所建立的数学模型有关,因而被广泛地应用于电力系统中.考虑光伏并网影响因素,将光伏系统视为 PQ 节点,在电流注入潮流模型的基础上,利用小扰动定理建立基于广义Tellegen 定理的修正方程.利用新的修正方程,以引入光伏源的 IEEE30 节点测试系统为例进行潮流计算.算例分析表明,该算法的迭代次数及潮流计算速度均有所改善,同时也表明了广义Tellegen定理在含光伏源系统中同样具有重要的应用价值.
廣義Tellegen定理與物理繫統屬性無關,隻與物理繫統所建立的數學模型有關,因而被廣汎地應用于電力繫統中.攷慮光伏併網影響因素,將光伏繫統視為 PQ 節點,在電流註入潮流模型的基礎上,利用小擾動定理建立基于廣義Tellegen 定理的脩正方程.利用新的脩正方程,以引入光伏源的 IEEE30 節點測試繫統為例進行潮流計算.算例分析錶明,該算法的迭代次數及潮流計算速度均有所改善,同時也錶明瞭廣義Tellegen定理在含光伏源繫統中同樣具有重要的應用價值.
엄의Tellegen정리여물리계통속성무관,지여물리계통소건립적수학모형유관,인이피엄범지응용우전력계통중.고필광복병망영향인소,장광복계통시위 PQ 절점,재전류주입조류모형적기출상,이용소우동정리건립기우엄의Tellegen 정리적수정방정.이용신적수정방정,이인입광복원적 IEEE30 절점측시계통위례진행조류계산.산례분석표명,해산법적질대차수급조류계산속도균유소개선,동시야표명료엄의Tellegen정리재함광복원계통중동양구유중요적응용개치.
Generalized Tellegen's theorem is independent of physics attribute and has a bearing on the mathematical models. So it has been applied widely in power system. Considering the photovoltaic grid-connected factors, photovoltaic power can be configured as the PQ node in power flow calculation. According to small disturbance theorem, the new modified equation based on the Generalized Tellegen's theorem is established on current-influx model basis. Then, according to the established the new modified equation, photovoltaic power is connected to the IEEE30 test system of pipeline. Example analysis demonstrates that the new algorithm is superior to traditional algorithm in calculation speed and iteration number, and it also shows that Generalized Tellegen's theorem has important application values in power system with photovoltaic power.
