光热电站并网对新能源电网运行特性的影响研究  

A Study on the Influence of the Connected Photo-Thermal Power Station on theOperation Characteristics of the New Energy Grid

作　　者：杨国清[1] 薛雨 姚李孝[1] 时铭序 YANG Guoqing;XUE Yu;YAO Lixiao;SHI Mingxu(College of Electrical Engineering,Xi’an University of Technology,Xi’an 710054,Shaanxi,China;State Grid Baoji Power Supply Company,Baoji 721004,Shaanxi,China;College of Water Resources and Hydroelectric Engineering,Xi’an University of Technology,Xi’an 710048,Shaanxi,China)

机构地区：[1]西安理工大学电气工程学院,陕西西安710054 [2]国网宝鸡供电公司,陕西宝鸡721004 [3]西安理工大学水利水电学院,陕西西安710048

出　　处：《电网与清洁能源》2021年第5期134-139,146,共7页Power System and Clean Energy

基　　金：国家自然科学基金项目(51077109)。

摘　　要：随着大规模新能源并入电网,将引起系统电压支撑能力下降,由此加重了系统的波动性和不确定性,并产生了较高的弃风、弃光率。针对新能源电网的光热电站调度优化问题,提出了以区域电网断面送出极限、新能源机组消纳量及系统电压支撑能力为优化目标,并充分考虑丰大光大运行方式下其他新能源机组的影响因素,基于电力系统综合仿真程序(PSASP)建立了某省实际电网模型,并探讨在光热机组不同出力及接入位置组合下,新能源电网的暂态电压稳定性、断面输送极限和新能源机组消纳量等问题。As large-scale new energy is integrated into the power grid,the voltage support capacity of the system decreases,which aggravates the volatility and uncertainty of the system,and leads to high rates of wind and light abandonment.Focusing on the optimized scheduling of the photo-thermal power station,this paper proposes that the section transmission limit of the regional power grid,the consumption of the new energy unit and the voltage support capacity of the system should be taken as the optimization goal,and full consideration be given to the influence factors of other new energy units in the operation mode of plenty of solar energy.A model of the actual power grid of a certain province is established based on PSASP,and the transient voltage stability,section transmission limit and the consumption of the new energy unit are discussed under the combination of different outputs and access positions of the photo-thermal unit.

关 键 词：光热电站 新能源消纳 PSASP 调度优化 

分 类 号：TM715[电气工程—电力系统及自动化]