电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2014年
4期
77-83
,共7页
李玲玲%鲁修学%孙东旺%李志刚
李玲玲%魯脩學%孫東旺%李誌剛
리령령%로수학%손동왕%리지강
安全可靠运行%网络节点%薄弱环节%网络建模%功率变化度
安全可靠運行%網絡節點%薄弱環節%網絡建模%功率變化度
안전가고운행%망락절점%박약배절%망락건모%공솔변화도
safe reliable operation%network nodes%weak links%network modeling%power change degree
在已构建的电力系统网络中总是存在着会造成大面积停电事故的网络节点,即薄弱环节,因此,对于庞大的电力系统网络来说,寻求网络中存在的薄弱环节具有着重要的意义。基于小世界网络模型对区域性电力系统进行网络建模,并以节点功率变化为基础,构建网络中某一发电节点的功率值变化或者从电网中解列后对网络系统中其他元件功率影响的一种新算法模型。并提出了功率变化度的概念,进而辨识电力系统中的薄弱环节,对电力系统的经济可靠建设提供理论支持。最后通过一个电力系统算例验证了该算法的有效性。
在已構建的電力繫統網絡中總是存在著會造成大麵積停電事故的網絡節點,即薄弱環節,因此,對于龐大的電力繫統網絡來說,尋求網絡中存在的薄弱環節具有著重要的意義。基于小世界網絡模型對區域性電力繫統進行網絡建模,併以節點功率變化為基礎,構建網絡中某一髮電節點的功率值變化或者從電網中解列後對網絡繫統中其他元件功率影響的一種新算法模型。併提齣瞭功率變化度的概唸,進而辨識電力繫統中的薄弱環節,對電力繫統的經濟可靠建設提供理論支持。最後通過一箇電力繫統算例驗證瞭該算法的有效性。
재이구건적전력계통망락중총시존재착회조성대면적정전사고적망락절점,즉박약배절,인차,대우방대적전력계통망락래설,심구망락중존재적박약배절구유착중요적의의。기우소세계망락모형대구역성전력계통진행망락건모,병이절점공솔변화위기출,구건망락중모일발전절점적공솔치변화혹자종전망중해렬후대망락계통중기타원건공솔영향적일충신산법모형。병제출료공솔변화도적개념,진이변식전력계통중적박약배절,대전력계통적경제가고건설제공이론지지。최후통과일개전력계통산례험증료해산법적유효성。
There are always network nodes that can cause widespread blackouts in the built power system network, which are called weak links. Thus seeking the weak links in the network has an important significance to a large power system network. The new algorithm model based on node power variation and the small-world network model for regional power system can estimate the effect on other elements power when the power of generation node changes or splits from the grid. Then through proposing the concept of the power change degree, the weak links in the power system could be identified and theoretical support for economic and reliable construction of the power system is provided. In the end, the validity of the new algorithm is verified through an example of the power system.