基于分布式模型预测控制的包含大规模风电集群互联系统超前频率控制策略

发布时间：2019-05-07 12:52

【摘要】：随着风电在电力系统中的大规模接入以及风电渗透率的不断提高,仅依靠传统电源进行频率控制将无法满足系统稳定性要求,亟需风电具有与传统电源协调配合共同参与电力系统频率控制的能力。首先,建立了一个考虑非线性约束的包含大规模风电集群及传统电源的多区互联系统频率响应模型;其次,提出了考虑超短期风电功率预测信息的结合拉盖尔函数分布式模型预测控制策略,该策略依据风电预测数据对控制策略预测时域进行滚动优化,形成频率超前控制的优化机制;最后,提出了纳什均衡分解协调在线优化控制算法,解决带约束多变量复杂系统与在线滚动优化求解之间的矛盾。通过算例分析,对所提策略与算法的可行性和有效性进行了验证。
[Abstract]:With the large-scale access of wind power in the power system and the continuous improvement of wind power permeability, relying on the traditional power supply for frequency control will not meet the stability requirements of the system. It is urgent for wind power to coordinate with traditional power supply to participate in frequency control of power system. Firstly, a frequency response model of multi-zone interconnected system with large-scale wind power cluster and traditional power supply is established, which takes into account nonlinear constraints. Secondly, a Laguerre function distributed model predictive control strategy considering ultra-short-term wind power prediction information is proposed, which optimizes the prediction time domain of the control strategy based on wind power prediction data. The optimization mechanism of frequency advance control is formed; Finally, a Nash equilibrium decomposition-coordinated on-line optimization control algorithm is proposed to solve the contradiction between constrained multivariable complex systems and on-line rolling optimization. An example is given to verify the feasibility and effectiveness of the proposed strategy and algorithm.
【作者单位】：中国电力科学研究院;中国农业大学信息与电气工程学院电气工程系;国网冀北电力有限公司;
【基金】：国家自然科学基金项目(51477174) 国家电网公司科技项目(5201011600TS)~~
【分类号】：TM614

【相似文献】