电气工程学报 ›› 2020, Vol. 15 ›› Issue (1): 36-40.doi: 10.11985/2020.01.005

所属专题: 特邀专栏:微电网功率变换与稳定控制

• 特邀专栏: 微电网功率变换与稳定控制 • 上一篇    下一篇

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基于可再生能源与储能系统的微电网模型及其优化运行仿真研究

丁宇劼   

  1. 南京师范大学电气与自动化工程学院 南京 210023
  • 收稿日期:2019-11-21 出版日期:2020-03-25 发布日期:2020-05-13
  • 作者简介:丁宇劼,男,1999年生。主要研究方向为微电网综合能源优化调度等。E-mail:gaocan343292460@163.com

Microgrid Model with Renewable Energy and Energy Storage System and Its Optimal Operation Simulation

DING Yujie   

  1. School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210023 China
  • Received:2019-11-21 Online:2020-03-25 Published:2020-05-13

摘要:

随着新能源发电的广泛应用,微电网的经济效益是实现环境友好型供电的关键因素。各学者对微电网模型进行了大量研究,但现有模型未能体现可再生能源在微电网运行中的重要作用。因此,一个基于可再生能源与储能系统分析微电网产储电模型被提出,为了满足最小成本和二氧化碳排放量的需求,对微电网中电能的产生、存储和生产成本进行了详细分析。该微电网包含一个光伏发电厂、一个风力发电机、作为发电设备的柴油和燃气发电机,以及作为储能设备的电池储能系统和一个小型水力蓄水池。利用FICO Xpress编程优化工具对配电网中的微电网进行了电能生产和储存过程的仿真研究。结果表明,使用储能系统可以大大减少火电机组的发电量,也有助于降低火电机组的运行成本。此外,仿真结果符合所提出的用于分析微电网中的电力生产和存储的模型。

关键词: 微电网产储模型, 微电网优化运行, 可再生能源, 微电网模型仿真, 储能系统

Abstract:

With the wide application of new energy power generation, the economic interest of microgrid is the key factor to achieve an environment-friendly power supply. Scholars have done a lot of research on microgrid models, but the existing models fail to show the importance of renewable energy in microgrid operation. Therefore, a microgrid generation and storage model based on renewable energy and energy storage system is proposed. In order to minimize the cost and the carbon dioxide emissions, the generation and storage as well as the production costs of electric energy in microgrid are analyzed in detail. The microgrid consists of a photovoltaic power plant, a wind turbine, a diesel, and a gas generator as a power generation equipment, a battery energy storage system as an energy storage equipment and a small hydraulic reservoir. The simulation of the power production and storage process of the microgrid in the distribution network is carried out by using the FICO Xpress programming optimization tool. The result shows that the use of the energy storage system can greatly reduce the generating capacity of thermal power units, and also help to reduce the operating cost of thermal power units. In addition, the simulation results are in accordance with the proposed model for analyzing power production and storage in the microgrid.

Key words: Microgrid production and storage model, microgrid optimal operation, renewable energy, microgrid model simulation, energy storage system

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