摘要
为解决电源侧电池储能参与辅助服务的间接效益无法量化,以致收益分配依据不足的问题,提出一种计及机组降损与延缓投资收益的储能经济效益建模及评价方法。首先基于全寿命周期理论完善储能参与调频调峰的成本模型,然后以转子疲劳寿命损耗理论为基础量化了火电厂配置储能参与调频的间接收益,同时建立计及储能调频降低机组磨损收益与储能调峰延缓投资的效益模型。最后基于成本和效益模型,采用动态投资回收期、投资收益率以及净现值等指标对配置储能系统的火电厂进行经济效益评价。算例仿真表明,通过计及储能对机组降损与延缓投资等间接收益,可有效提高储能系统的效益;采用优化运行策略,电源侧储能的各评价指标接近行业内各指标基准,可为未来电源侧投资储能及参与辅助服务市场机制的制定提供参考。
In order to solve the problem that the indirect benefits of power-side battery energy storage(BESS)participating in auxiliary services cannot be quantified and the income distribution basis is insufficient,this paper proposes a method to model and evaluate the economic benefits of BESS,which takes into account the unit loss reduction and delayed investment income.Firstly,the cost of BESS is improved based on the whole life cycle theory,and then the indirect benefits of BESS are quantified based on the theory of rotor fatigue life loss,and a benefit model that takes into account the reduction in unit wear and the delay in investment returns has been established.Finally,based on the cost and benefit model,the economic benefit of the thermal power plant with BESS is evaluated by using such indicators as dynamic investment payback period,investment return rate and net present value.The simulation results show that the efficiency of BESS can be effectively improved by taking into account the indirect benefits such as loss reduction and delayed investment.The evaluation standard of BESS by adopting the optimal operation strategy is close to the index benchmark of the industry,which can provide reference for the future power side investment in BESS and participation in the formulation of auxiliary service market mechanism.
作者
王静
刘文霞
李守强
刘宗歧
杨梦瑶
郭浩明
WANG Jing;LIU Wenxia;LI Shouqiang;LIU Zongqi;YANG Mengyao;GUO Haoming(State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources(North China Electric Power University),Changping District,Beijing 102206,China)
出处
《电网技术》
EI
CSCD
北大核心
2020年第11期4236-4244,共9页
Power System Technology
关键词
电源侧电池储能
辅助服务
疲劳损耗
经济效益评价
power-side battery energy storage
ancillary services
fatigue wear
economic benefit evaluation
