基于需求侧响应的微网孤网运行实时调度策略研究
摘要：鉴于独立运行模式下,微网处于自给自足状态,内部会产生不平衡功率,为使供电更加经济可靠,提出了一套基于需求侧响应的实时调度策略。建立了计及负荷曲线平稳度和负荷转移成本双重指标的日前负荷转移规划模型,在需求侧转移部分可转移负荷平滑负荷曲线;微网运行期间,实施基于蓄电池三段式充放电的实时调度策略安排各可控型微源及蓄电池出力,有利于蓄电池保持足够的充放电裕量,进一步削减功率缺额及功率浪费。策略中建立负荷优化分配模型优化各可控型微源出力,减小微网运行成本。最后以一小型微网系统为例,通过与不计及蓄电池折旧成本的日前调度结果对比,证明在负荷转移平滑负荷曲线及实时调度策略的双重作用下,不平衡功率得以削减。
Abstract:Due to micro-grid supplies electricity by itself in island mode, the unbalanced power will be produced. In order to make power supply more economical and reliable, a real-time scheduling strategy based on the demand side response is put forward in this paper. Day-ahead load transfer model, which considers such indexes as load curve smoothness and load transfer cost, is built to smooth the load curve by transferable load at demand-side transfer part. During the operation of micro-grid, the real-time scheduling strategy based on battery three-step charging and discharging is implemented to arrange each controllable micro-source and battery output, which can maintain enough battery charging and discharging margin and cut down the power shortage and power waste. Moreover, the optimal load distribution model is proposed in the dispatch scheme to optimize the output of the controllable micro-source, reduce the micro-grid operation cost. In the end, taking a small micro-grid system as an example, by comparing with the day-ahead planning results without considering the battery depreciation cost, it is shown that the unbalanced power can be reduced under both functions of load curves smoothening by load transfer and the real-time scheduling strategy.
标题：基于需求侧响应的微网孤网运行实时调度策略研究
英文标题：Reseach on Real-time Scheduling Strategy for Micro-grid Operation in Island Mode Based on the Demand Side Response
作者：杨明玉, 韩旭,
关键词：独立运行, 负荷转移, 三段式, 实时调度, 不平衡功率,
发表日期：2015-08-09
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