CAJ | 학술논문

针对目前输电网线损率评估方法不能满足节能降耗的需要,提出了计及绿色能源出力不确定性的输电网线损率概率评估方法.该方法包括系统状态模拟与蒙特卡罗抽样两部分.系统状态模拟包括绿色能源出力的模拟、负荷状态的模拟、机组日节能调度以及网络安全校正控制的模拟、厂站电压无功控制的模拟.在蒙特卡罗随机抽样时,基于上述系统状态模拟方法,通过对随机样本的状态调整与潮流计算确定输电网线损率的概率分布.最后,以某省级电网为例,验证了所提线损率概率评估方法的有效性.
침대목전수전망선손솔평고방법불능만족절능강모적수요,제출료계급록색능원출력불학정성적수전망선손솔개솔평고방법.해방법포괄계통상태모의여몽특잡라추양량부분.계통상태모의포괄록색능원출력적모의、부하상태적모의、궤조일절능조도이급망락안전교정공제적모의、엄참전압무공공제적모의.재몽특잡라수궤추양시,기우상술계통상태모의방법,통과대수궤양본적상태조정여조류계산학정수전망선손솔적개솔분포.최후,이모성급전망위례,험증료소제선손솔개솔평고방법적유효성.
To respond to the situation that the existed methods for evaluating transmission loss rate can not fully meet the requirements of energy conservation, a novel method under the uncertainty of green energy generation is presented. The proposed method includes system states simulation and Monte Carlo simulation. System states simulation includes green energy generation simulation, electric loads simulation, daily energy-saving dispatching simulation, security constrained correction simulation, and substations/plants reactive power control simulation. The other part is the Monte Carlo simulation, in which the probabilistic distribution of the transmission loss rate is determined by power flow computation after the stochastic sample states are regulated by the system states simulation above. The simulation result in a provincial power grid proves its validity.