论文标题
一种新型的实时能源管理策略,用于围绕着旋转的微电网:内部利用内部波动
A Novel Real-Time Energy Management Strategy for Gird-Friendly Microgrid: Harnessing Internal Fluctuation Internally
论文作者
论文摘要
通常,微电网产生能力的很大一部分来自可变的可再生资源,这些资源受到环境的极大影响,并且可以间歇性和随机性。这将导致微电网净负载的不确定性,并对网格可靠性产生负面影响。本文提出了针对网络微电网的两阶段实时能源管理策略,以在内部解决微电网内部波动,从而使微电网变得对网格友好。提出的策略基于实时调度(RTD)阶段与实时控制(RTC)阶段之间的协调。在RTD阶段,模型预测控制(MPC)用于在当前时间间隔中最佳调度微电网资源,同时考虑不久的将来情况。 RTC相通过快速作用的电池来解决微电网内部净负载波动,该电池旨在保持主电网和微电网之间的恒定平局功率流,以进行电流调度间隔。在十种不同的净负载方案上进行的数值模拟可以证明拟议的两阶段能源管理策略的性能,从而使微电网能够作为可控资产运行,并从散装网格操作员的角度从经济调度间隔内在经济调度间隔内运行。
Typically, a large portion of microgrid generating capacity is from variable renewable resources that are greatly impacted by the environment and can be intermittent as well as stochastic. This would result in uncertainty of microgrid net-load, and negatively affect the grid reliability. A two-phase real-time energy management strategy for networked microgrid is proposed in this paper to address microgrid internal fluctuation internally, which enables a microgrid to become grid-friendly. The proposed strategy is based on coordination between the real-time dispatch (RTD) phase and the real-time control (RTC) phase. In the RTD phase, model predictive control (MPC) is used to optimally dispatch microgrid resources in the current time interval while considering near future situations. The RTC phase addresses microgrid internal net-load fluctuation with fast-acting batteries, which aims to maintain a constant tie-line power flow between the main grid and the microgrid for the current dispatch interval. Numerical simulations conducted on ten different net-load scenarios can demonstrate the performance of the proposed two-phase energy management strategy that will enable a microgrid to operate as a controllable asset with static electricity consumption or production in an economic dispatch interval from the perspective of the bulk grid operator.