Smoothing power output from a wind farm

摘要

An apparatus and an article of manufacture for determining consistent wind power output include obtaining forecasted wind power production, actual wind power production from a wind power producer, a variable price of power measurement, a power storage battery state and capacity measurement, and a penalty measurement for wind power change of rate, and analyzing the forecasted wind power production, the variable price of power measurement, the power storage battery state and capacity measurement, and the penalty measurement for wind power change of rate to determine a consistent rate at which wind power is to be exported from the wind power producer to a grid.

主权项

1. An article of manufacture comprising a computer readable storage medium having computer readable instructions tangibly embodied thereon which, when implemented, cause a computer to carry out a plurality of method steps comprising:
obtaining (i) forecasted wind power production, (ii) actual wind power exported from a wind power producer to a grid by interfacing with a monitoring device at the wind power producer to measure actual power generated by the wind power producer, (iii) a variable price of power measurement, (iv) a power storage battery state and capacity measurement by interfacing with an energy storage management system to collect battery data, and (v) a monetary penalty for wind power change of output rate; analyzing: the forecasted wind power production (P(t)) by time step t, the actual wind power exported from the wind power producer to the grid (C(t)) by time step t, the variable price of power measurement (PRICE(t)) at time step t, the power storage battery state (b(t)) at the end of time step t and capacity measurement (B), wherein the power storage battery state (b(t)) at the end of time step t is based on the forecasted wind power production (P(t)) by time step t, the actual wind power exported from the wind power producer to the grid (C(t)) by time step t, and the capacity measurement (B), and the monetary penalty for wind power change of rate (PENALTY(t)) at time step t to determine a piece-wise linear output rate at which wind power is to be exported from the wind power producer to the grid which maximizes revenue for the wind power producer, wherein said determining the piece-wise linear output rate comprises determining an output rate for each of a given number of multiple discrete subsequent time steps (t) via:maxC⁡(t),b⁡(t),W⁡(t)⁢∀t⁢∑t⁢Δ⁢⁢C⁡(t)⁢PRICE⁡(t)-∑t⁢V⁡(t)⁢PENALTY⁡(t),  wherein W(t) represents cumulative wastage by time step t, and wherein V(t) represents a maximum of change in the amount of power exported from the wind power producer to the grid at time step t; and outputting, to an output limiter component, a series of rate-duration pairs causing power to be exported from the wind power producer to the grid in accordance with said determined piece-wise linear output rate.