Coordinated Optimization Strategies of Wind-storage Hybrid System Considering Off-design Characteristics of Compressed Air Energy Storage

LI Guangkuo; CHEN Laijun; XIE Yuguang; GAO Bo; ZHENG Tianwen; MEI Shengwei

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Coordinated Optimization Strategies of Wind-storage Hybrid System Considering Off-design Characteristics of Compressed Air Energy Storage

更新时间：2025-12-08

- Coordinated Optimization Strategies of Wind-storage Hybrid System Considering Off-design Characteristics of Compressed Air Energy Storage
- Vol. 46, Issue 2, Pages: 511-518(2020)
- 作者机构：
  
  1. 清华大学电机工程与应用电子技术系
  2. 国网安徽省电力有限公司电力科学研究院
  3. 清华大学四川能源互联网研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：29 February 2020，
  
  Published：2020
- 稿件说明：
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LI Guangkuo, CHEN Laijun, XIE Yuguang, et al. Coordinated Optimization Strategies of Wind-storage Hybrid System Considering Off-design Characteristics of Compressed Air Energy Storage[J]. 2020, 46(2): 511-518.
DOI：

LI Guangkuo, CHEN Laijun, XIE Yuguang, et al. Coordinated Optimization Strategies of Wind-storage Hybrid System Considering Off-design Characteristics of Compressed Air Energy Storage[J]. 2020, 46(2): 511-518. DOI：

摘要

压缩空气储能（compressed air energy storage

CAES）是实现电网削峰填谷、促进风电高效消纳的手段之一。然而

压缩空气储能效率在较大程度上取决于运行工况

其变工况特性直接影响风储联合系统的安全高效运行。以最大化风储系统运行收益为目标

建立了考虑压缩空气储能变工况特性的风储系统运行优化模型。该模型对压缩机、透平在变工况运行时的动态效率进行了准确刻画

并采用分段线性化方法将变工况特性纳入混合整数线性规划算法。算例结果表明

优化策略与压缩空气储能的变工况特性有直接关系;考虑运行约束和动态效率能更准确反映缩空气储能的实际运行状态

可为风储系统的运行决策提供依据。

Abstract

Compressed air energy storage（CAES） is one of the effective means to achieve peak-shaving target and promote wind power utilization. However

the efficiency of CAES mainly depends on its operating conditions. Its off-design characteristics have direct impact on the secure and efficient operation of wind-storage hybrid system. Consequently

aiming at maximizing profit of the hybrid system

we established a coordinated optimization model in which the off-design characteristics of CAES are taken into account. The proposed model accurately describes the dynamics of the compressor and turbine

and the piecewise linearization method is used to linearize off-design characteristics curve so as to formulate a mixed integer linear programming problem. Case study results indicate that the profit estimations are more realistic compared to constant efficiency model. By considering the operational constraints and dynamic efficiency

the actual operation state of CAES can be more accurately investigated

which can provide a basis for the operational decision of wind-storage hybrid system.

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