摘要
以鞍山供电公司10 kV配电网为背景,研究了实用的三相状态估计在线计算方法。将G IS系统中的支路数据简化,并对配电变压器导纳矩阵增加零序小阻抗,建立节点导纳矩阵。结合实际系统,应用高斯算法和最小二乘算法,建立状态估计方程。计算过程中,消除注入电流的零序分量,实现算法可靠收敛。鞍山配电网在线状态估计程序长期运行,具有收敛可靠、计算速度快的优点。
A utility three-phase on-line state estimation algorithm is studied based on anshan 10 kV distribution system. Branches＇ data in geographical information system is simplified and zero resistance is added in bus admittance matrix. And network bus admittance matrix is founded. State Estimation equation is founded based on real system, Gauss method and least-squares method. Zero sequence component of injection current is eliminated to make computation reliable convergence. On-line state estimation procedure for Anshan distribution system works for long period and has the advantage of reliable convergence and high speed.
出处
《电力科学与工程》
2010年第3期35-39,共5页
Electric Power Science and Engineering
关键词
鞍山配电网
三相状态估计算法
在线计算
Anshan distribution system
three-phase state estimation method
on-line calculation
