摘要
作为智能电网中管理分布式电源的有效技术手段之一,微网得到了越来越多的重视。在全面考虑柴油发电机组与需求侧管理负荷运行特性的基础上,建立了适用于独立型微网能量优化模型。此外,模型采用雨流计数法精确考虑网内储能设备的运行成本。优化模型以微网运行成本最低为目标,从日前与日内两个时间尺度对微网能量进行协调控制,优化各发电单元和需求侧管理负荷的启停机状态及其有功出力值。最后以某实际微网为例,验证了本文所提模型及算法的有效性。
As an effective technology to manage distributed generation in smart grid, microgrid attracts more and more attention. An energy optimization model of isolated microgrid is built in this paper, in which, both operating characteristics of diesel generators and demand side energy management loads, and operation costs of energy storage calculated accurately by the rain-flow counting method are all considered. The optimization objective of the model is to minimize operating costs of microgrid by controlling power flows in microgrid from day-ahead and intra-day time-scales, i.e., both on/off schedules and output powers of generators and demand side energy management loads are optimized coordinately from these two time-scales. Simulations on certain real microgrid show effectiveness of the methodology proposed in this paper.
出处
《电工技术学报》
EI
CSCD
北大核心
2014年第2期122-129,共8页
Transactions of China Electrotechnical Society
基金
教育部
国家外国专家局海外名师项目资助(MS2012HHDX021)
关键词
微电网
经济调度
日前调度
日内调度
储能寿命损耗
雨流计数法
需求侧管理
Microgrid
economic dispatch
day-ahead scheduling
intra-day scheduling
energy storage life wastage
rain-flow counting method
demand side management
