基于RT-LAB的微电网能量管理系统

Energy management system for microgrid based on RT-LAB

在充分考虑储能电源的充放电深度、柴油发电机的启停次数限制等设备约束条件的基础上,针对多电压源型微源组网的风光柴储结构的独立型微电网,提出了一种分层式微网能量管理策略。该系统根据风光发电预测、负荷预测、储能充放电方案、当前电网的运行状态及实时量测数据,通过协调分布式电源的出力及负荷投切,在保证微电网安全稳定运行条件下,实现微电网的经济运行。搭建了微电网系统的RTLAB数模混合仿真实验平台,可对微电网协调控制策略和能量管理策略等关键技术进行有效验证,针对孤网运行时,风力发电系统、系统负荷发生大幅度功率波动的情况下的控制策略进行了仿真验证,实验结果表明本文所提分层式微网能量管理策略的可行性和正确性。

In the full account of equipment constraints consisiting the depth of the charge and discharge of storage power and start-stop frequency limit of diesel generator , a hierarchical decay net energy management strategy was proposesd for microgrid consisting of wind power generation, diesel generator, energy storage system. In accordance with the results of the scene generation forecast,load forecasting,energy storage charge and discharge scheme,the current status of power network and real- time measurement data,under the condition of safe and stable, the microgrid can be operated on economic model through the coordination of distributed power output and load cutting. Using the analog-digital simulation platform built based on real time digital simulator （RTLAB）, a case is done to verify the control strategy of the island operation whose wind and system load power was large fluctuated, which proved the validity and feasibility of the control strategy.