【摘要】 随着电力需求的持续增长,大量分散电源接入系统,如何准确计算准入容量以及评估分布式电源接入对系统的影响尤为必要。基于一个考虑有载调压变压器分接头动作特性的离散动态方程,研究分散电源对分接头动作稳定性的影响,提出了一种考虑分接头振荡约束的分散电源准入容量计算模型,并进行了考虑分散电源解列情况的准入容量计算,提出了使用无功补偿设备来提高准入容量的方法,并用二分法通过IEEE-112节点系统的仿真算例对此模型进行了求解,说明该模型的合理有效性。更多还原

【Abstract】 With many distributed generators connecting to power system for satisfying the increasing electricity demand,the maximum penetration level computation of distributed generators as well as the evaluation of their influence on power system becomes extremely necessary.Based on the discrete equation of the tap change under load(TCUL)transformers and the impact on the tap action caused by distributed generators,a optimization model is proposed considering tap hunting constraints.Furthermore,the computation of maximum penetration level is analyzed considering the distributed generators disconnected due to outage.It is also presented that reactive power compensation can improve the penetration level.The validity of the proposed model is proved by the simulation result from IEEE 112-bus system.更多还原