Secondary Frequency Control Considering Optimized Power Support From Virtual Power Plant Containing Aluminum Smelter Loads Through VSC-HVDC Link  

作　　者：Peng Bao Wen Zhang Yuxi Zhang 

机构地区：[1]Key Laboratory of Power System Intelligent Dispatch and Control of the Ministry of Education,Shandong University,Jinan 250061,China

出　　处：《Journal of Modern Power Systems and Clean Energy》2023年第1期355-367,共13页现代电力系统与清洁能源学报（英文）

基　　金：supported by the National Natural Science Foundation of China(No.52077125);the Science and Technology Program of the State Grid Shandong Electric Power Company(No.2020A-126)。

摘　　要：The growing number of renewable energy replacing conventional generators results in a loss of the reserve for frequency control in power systems,while many industrial power grids often have excess energy supply due to abundant wind and solar energy resources.This paper proposes a secondary frequency control(SFC)strategy that allows industrial power grids to provide emergency high-voltage direct current(HVDC)power support(EDCPS)for emergency to a system requiring power support through a voltage source converter(VSC)HVDC link.An architecture including multiple model predictive control(MPC)controllers with periodic communication is designed to simultaneously obtain optimized EDCPS capacity and minimize adverse effects on the providing power support(PPS)system.Moreover,a model of a virtual power plant(VPP)containing aluminum smelter loads(ASLs)and a high penetration of wind power is established for the PPS system.The flexibility and controllability of the VPP are improved by the demand response of the ASLs.The uncertainty associated with wind power is considered by chance constraints.The effectiveness of the proposed strategy is verified by simulation results using the data of an actual industrial power grid in Inner Mongolia,China.The DC voltage of the VSCs and the DC in the potlines of the ASLs are also investigated in the simulation.

关 键 词：Secondary frequency control power support voltage source converter(VSC) high-voltage direct current(HVDC) model predictive control(MPC) virtual power plant(VPP) demand response 

分 类 号：TM721.1[电气工程—电力系统及自动化]