Generation and transmission coordinated planning based on peak and  valley of net load

Sixian Wang; Zongqi Liu

doi:10.1117/12.2673061

25 April 2023 Generation and transmission coordinated planning based on peak and valley of net load

Sixian Wang, Zongqi Liu

Proceedings Volume 12598, Eighth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2022); 125982A (2023) https://doi.org/10.1117/12.2673061
Event: Eighth International Conference on Energy Materials and Electrical Engineering (ICMEE 2022), 2022, Guangzhou, China

Abstract

As wind power has characteristics of volatility, uncertainty, and poor predictability, if the penetration rate of wind power is to be improved, sufficient flexible and adjustable power supply is required to absorb large-scale wind power. Therefore, the reasonable proportion of wind power, flexible and adjustable power supply and common coal-fired power supply shall be considered in the generation and transmission coordinated planning. In this paper, the K-means clustering method is used to sample the load and wind speed values at different times of typical days from the actual data. Based on the peak and valley of net load on several typical days in each year during the planning period, a dynamic generation and transmission coordinated planning mathematical model that can simultaneously consider wind power, gas-fired power generation and coal-fired power generation is established. The objective of this model is to make the optimal investment for the candidate units and lines under the premise of satisfying the constraints of safe operation of the power grid, to ensure that the total present value of the investment cost and the operation cost in the planning period is minimum. At the same time, the simplified unit commitment model is used to simulate the dispatching operation of various types of units in the power system in typical days, to explain the flexible regulation function of gas-fired generating units on wind power and load fluctuation.

Citation Download Citation

Sixian Wang and Zongqi Liu "Generation and transmission coordinated planning based on peak and valley of net load", Proc. SPIE 12598, Eighth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2022), 125982A (25 April 2023); https://doi.org/10.1117/12.2673061

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KEYWORDS

Wind energy

Power supplies

Atmospheric modeling

Wind turbine technology

Wind speed

Power grids

Turbines

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