当前位置: X-MOL 学术Sustain. Comput. Inform. Syst. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Optimal operation of photothermal power station in regional power grid with high permeability of new energy
Sustainable Computing: Informatics and Systems ( IF 4.5 ) Pub Date : 2020-05-31 , DOI: 10.1016/j.suscom.2020.100388
Shujie Zhang , Lixiao Yao , Yu Xue , Dong Dou , Guoqing Yang , Yazhou Lv , Xiaokang Zhang

The integration of high-proportion new energy into regional power grid can decrease the damping of the power grid and weaken the voltage supporting capacity, which is likely to improve the wind curtailment rate and the light abandoning rate.This paper focuses on the optimal operatioin of CSP station in regional power grid with high permeability of new energy. With the optimization goal of maximizing the voltage stability margin and the new energy consumption, the optimal output of CSP station is solved by using the HSARSAλ algorithm. Based on the psasp program and the actual grid model, the effects of the photothermal unit output and the access point optimization on the transient voltage stability, section conveying capacity and new energy consumption capacity are analyzed.The study results demonstrate that when the unit output is 30% of the total capacity, the voltage integrated error is decreased by 9.39%, and the section conveying limit is increased by 24.81%. Also, the new energy consumption is continuously decreased. As 7509, 7502, 7508 power output distribution plans are 2:1:0 and 3:0:0, the voltage integrated error decreases by 13.07% and 16.47%, respectively. In this case, the optimal voltage stability is reached, which can effectively improve the system operation characteristics.



中文翻译:

高渗透新能源的区域电网光热电站的优化运行

将高比例的新能源整合到区域电网中可以降低电网的阻尼并削弱其电压支持能力,这可能会提高弃风率和弃光率。区域电网中的CSP站具有很高的新能源渗透性。以最大化电压稳定裕度和新能源消耗为优化目标,通过使用H小号一种[R小号一种λ算法。基于psasp程序和实际的网格模型,分析了光热单元输出和接入点优化对瞬态电压稳定性,截面输送能力和新能源消耗能力的影响。研究结果表明,当单元输出为总容量的30%,电压积分误差降低了9.39%,截面输送极限提高了24.81%。而且,新能源消耗不断减少。由于7509、7502、7508的功率输出分配计划为2:1:0和3:0:0,因此电压积分误差分别降低了13.07%和16.47%。在这种情况下,可以达到最佳的电压稳定性,从而可以有效地改善系统的工作特性。

更新日期:2020-05-31
down
wechat
bug