Optimal Scheduling Strategy of Wind,Fire and Energy Storage Considering Battery Capacity Degradation

doi:10.16628/j.cnki.2095-8188.2021.09.005

Abstract

Abstract:

Energy storage technology provides a new way to deal with wind power access to the grid,however,frequent use of energy storage power stations will cause the battery capacity decline and the operation costs of power stations increase.This paper proposes a combined optimal scheduling model of wind,fire and energy storage,which considers the battery capacity degradation,thermal power start-up,shutdown and ramp up,wind power abandonment,system branch capacity and system reserve,etc.The model is linearized and calculated by calling CPLEX solver.The simulation results of 4-machine 14 bus system show that the model can alleviate battery capacity attenuation,thermal power climbing shortage,wind power curtailment and line capacity shortage.This paper provides a practical and feasible scheduling scheme for the healthy and reliable operation of energy storage power station.

Key words: wind-fire-storage, optimal scheduling, energy storage power stations, battery capacity degradation

CLC Number:

TM912

GUO Binqi, ZHANG Jiangfeng, SU Ye, WU Jiping, SUN Jiandong. Optimal Scheduling Strategy of Wind,Fire and Energy Storage Considering Battery Capacity Degradation[J]. LOW VOLTAGE APPARATUS, 2021, 0(9): 32-39.

Figures/Tables 15

References 17

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季节	火电运行成本/万元	弃风成本/万元	系统总成本/万元	弃风率/%
冬季	136.40	5.93	142.33	15.25
夏季	177.23	1.04	178.27	4.95

季节	储能容量衰减成本/万元	火电运行成本/万元	弃风成本 /万元	系统总成本/万元	弃风率/%
冬季	1.42	130.70	0.51	132.63	1.29
夏季	1.36	169.70	0.32	171.38	1.56

季节	储能容量衰减成本/万元	火电运行成本/万元	弃风成本 /万元	系统总成本/万元	弃风率/%
冬季	0.88	130.37	0.15	131.4	2.04
夏季	0.76	176.22	0.59	177.3	2.80