CO2 emission performance assessment of a residential PV/FC/battery power system

11th International Conference on Electrical Power Quality and Utilisation Pub Date : 2011-10-01 DOI:10.1109/EPQU.2011.6128924

Yoichi Tanaka

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Abstract

This paper presents an evaluation of the CO2 emission performance of a residential combined photovoltaic(PV), fuel cell(FC) and battery power system, whose commercialization in the near future shows promise considering that photovoltaic and fuel cell dual power generation systems are gaining popularity and residential battery power storage systems are being commercialized. A mathematical model of the power system is formulated as a mixed integer programming problem to make the optimal operation schedule for the system. The mathematical model includes electricity balance, heat balance and characteristics of system components. Annual CO2 emissions of 14 houses with the PV/FC/Battery power system were calculated assuming optimal system operations were conducted. The real-life electricity and heat demand data of 14 houses were used for these calculations. The calculations were carried out in “No battery”, “With battery” and “With battery and No backward flow” scenarios and the results compared. This research clarifies the CO2 emission performance of a PV/FC/Battery system as well as the reason behind the CO2 reduction and the change of CO2 emission performance when power backward flow is controlled.

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住宅光伏/FC/电池供电系统的CO2排放性能评估

考虑到光伏和燃料电池双发电系统的普及以及住宅电池储能系统的商业化，本文对住宅光伏、燃料电池和电池联合发电系统的二氧化碳排放性能进行了评估，该系统在不久的将来有望商业化。将电力系统的数学模型转化为一个混合整数规划问题，以制定电力系统的最优运行计划。数学模型包括电力平衡、热平衡和系统各部件的特性。计算了采用光伏/FC/电池供电系统的14户住宅的年二氧化碳排放量，并对系统运行进行了优化。这些计算使用了14所房屋的实际电力和热量需求数据。分别在“无电池”、“有电池”和“有电池且无回流”三种情况下进行计算，并对计算结果进行比较。本研究阐明了PV/FC/Battery系统的CO2排放性能，以及控制电源回流后CO2减排的原因和CO2排放性能的变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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11th International Conference on Electrical Power Quality and Utilisation

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