Open AccessMulti‐objective optimal scheduling strategy for wind power, PV and pumped storage plant in VSC‐HVDC grid
Author(s) -
Xu Man,
Wu Linlin,
Liu Hui,
Wang Xiao
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8435
Subject(s) - grid , computer science , photovoltaic system , wind power , power grid , electrical engineering , scheduling (production processes) , automotive engineering , environmental science , power (physics) , engineering , operations management , physics , geology , geodesy , quantum mechanics
Zhangbei demonstration project will be the world's highest voltage level and largest capacity VSC‐HVDC power grid, by which millions of kilowatts of renewable energy and pumped storage power will be supplied to Beijing. Due to the uncertainty of wind power and solar power, and the operating range restriction of pumped storage unit, it is urgent to find the solution to the problem of plan making of pumped storage generation and convertor substation after the Zhangbei demonstration project completes. This paper analyses the fluctuation characteristics of renewable energy generation in converter substation, based on the t‐location scale, then proposes a multi‐objective optimal scheduling strategy for wind power, PV, and pumped storage plant in VSC‐HVDC grid, with maximum energy consumption and minimum power fluctuation at the load side and vicinity of the adjusting side as the target, considering the constraints from day‐ahead forecasts, VSC‐HVDC capacity, unit start‐up–shutdown, and state conversion. Simulation results show that authors’ strategy can make use of pumped storage power plant to inhibit the fluctuation of renewable energy power and make the maximum renewable energy consumption within the allowed power fluctuation at the sides, attaining a good balance between energy consumption and grid security.