摘要
现有的各种潮流算法不能很好地解决断面功率调整问题,特别是断面功率和目标值偏差较大时收敛困难。提出一种基于牛顿法的大型互联电网多断面约束潮流算法,称为多断面控制法。该算法能在解电网潮流方程的同时将多个断面功率控制在指定位置。通过在传统潮流方程中增加断面功率偏差方程,并在承担控制任务的发电机功率方程组中增加功率变化附加项,建立控制多断面功率的基本模型。针对不同情况采取不同机群设置技巧和控制措施,使本文方法能适应不同情况大型电网的计算需求。该方法原理简单、收敛性好、容易实现。用WEPRI-36节点系统和大电网的实际工程验证了算法的有效性。
There is difficulty of convergence to regulate power on transmission interfaces with the algorithms of power flow existed, especially when the gap between current power and target is huge. This paper puts forward an algorithm of power flow for bulk interconnected grid with transmission interfaces power constraints based on Newton method, which named interfaces controlling method. It can solve equations of power flow in grid and regulate transmission interfaces power to appointed value synchronously. To build model of control power on transmission interfaces, power error equation of transmission interfaces added to basic power flow equations, and a monomial of power variation attached to power equations of generators which used to controlling or balancing power. With taking various ways to set generator groups and control power on interfaces, the algorithm can adapt to different bulk power system. This algorithm proposed is simple, convergent well and easy to realize, which is validated by WEPRI-36 power system and real electrical projects.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2010年第10期8-15,共8页
Proceedings of the CSEE
关键词
多断面控制法
断面功率约束
大电网
潮流算法
interfaces controlling method
transmission interface power constraint
bulk power system
algorithm of power flow
