基于电力系统能效评估的蓄能用电技术节能评价及优化

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摘要蓄能用电技术的调峰特性使得其应用比较广泛,但对于蓄能用电技术的节能效果却少有量化的分析。提出、推导了电力系统能效评估的节点煤耗率指标,基于交流最优潮流进行了节点煤耗率的求解;基于节点煤耗率理论,提出了蓄能用电技术节能评价的节点用电煤耗指标,利用该指标构建并研究了蓄能用电的节能优化控制模型。IEEE14节点系统算例分析了节点煤耗率指标的时间空间特性以及用于电力系统能效评估的可行性;冰蓄冷系统算例验证了该评价方法和控制策略的可行性,蓄能用电节能优化控制可有效降低系统的整体能耗。

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关键词 ：能效评估, 节点煤耗率, 节点用电煤耗, 蓄能用电, 节能评价

Abstract：Electrical energy-storage technology has been widely used due to its peak shaving function, but there has not been much quantitative analysis on its energy-saving effect. A nodal coal consumption rate index is proposed and derived to evaluate the power system energy efficiency, and an optimal power flow method is then used to calculate the index. Based on this theory, a nodal coal consumption for electricity utilization index is introduced and applied in the assessment of electrical energy-storage techniques’ energy-saving effect, and a energy saving optimization for energy storage and electricity utilization is further studied. The simulation on the IEEE14-bus system reveals the time and space characteristicsof the nodal coal consumption rate index, andindicatesits feasibility in the power system energy efficiency evaluation. The example analysis of the ice-storage system verifies the feasibility of the energy-saving evaluating method and the corresponding optimal control model of electrical energy-storage techniques. The effectiveness of the optimal control model in reducing the power system energy consumption is also confirmed.

Key words： Energy efficiency evaluation nodal coal cosumption rate nodal coal consumption for electricity utilization energy storage and electricity utilization energy-saving assessment

收稿日期: 2015-04-20 出版日期: 2016-07-12

PACS:

TM73

基金资助:国家高技术研究发展(863)计划(2015AA050401)、国家自然科学基金(51577029)、江苏省青蓝工程和国家电网公司科技项目资助。

通讯作者: 罗海明男,1987年生,硕士,研究方向为电力需求侧管理和能效管理。E-mail:luohaiming8@126.com

作者简介: 高赐威男,1977年生,博士,教授,博士生导师,研究方向为电力需求侧管理、电动汽车接入电网、电力规划和电力市场等。E-mail:ciwei.gao@seu.edu.cn

引用本文:

高赐威,罗海明,朱璐璐,刘福潮,韩永军. 基于电力系统能效评估的蓄能用电技术节能评价及优化[J]. 电工技术学报, 2016, 31(11): 140-148. Gao Ciwei Luo Haiming Zhu Lulu Liu Fuchao Han Yongjun. The Energy-Saving Assessment and Optimization of Energy Storage and Electricity Utilization Technology Based on the Energy Efficiency Evaluation of Power System. Transactions of China Electrotechnical Society, 2016, 31(11): 140-148.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I11/140

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