适应清洁能源消纳的配电网直接负荷控制模型与仿真

发布时间：2018-03-01 04:34

本文关键词： 直接负荷控制需求响应清洁能源消纳滑模变结构控制热力学可控负荷配电网　出处：《中国电机工程学报》2014年25期 　论文类型：期刊论文

【摘要】：研究配电网中直接负荷控制技术及其改变集中式热力学可控负荷的温度设定点来控制负荷功率的方法。建立以双耦合偏微分方程组为基础的热力学可控负荷传输动态模型,通过有限差分近似为面向控制的有限维状态空间模型。提出适应出力不确定性的清洁能源滑模变结构功率跟踪控制策略,利用李亚普诺夫稳定理论验证其收敛性。在小型配电网中,对1 000个制冷空调负荷进行仿真,功率跟踪误差分析结果表明所提方法能有效跟踪风电功率消纳目标,温度设定点控制分析结果表明所提方法的用户可接受百分比达到90%以上。该方法可为需求侧响应负荷在清洁能源消纳的应用提供新的技术途径。
[Abstract]:The direct load control technology in distribution network and the method of changing the temperature setting point of centralized thermodynamics controllable load to control load power are studied. A dynamic model of thermodynamics controllable load transmission based on double coupling partial differential equations is established. By using finite difference approximation as a finite-dimensional state space model oriented to control, a sliding mode variable structure power tracking control strategy for clean energy is proposed, which adapts to force uncertainty. The convergence of the proposed method is verified by Lyapunov stability theory. In a small distribution network, 1,000 refrigeration and air conditioning loads are simulated. The results of power tracking error analysis show that the proposed method can effectively track the wind power dissipation target. The results of temperature setting point control analysis show that the percentage of users acceptable to the proposed method is more than 90%. This method can provide a new technical approach for the application of demand side response load in clean energy consumption.
【作者单位】：新能源电力系统国家重点实验室(华北电力大学);
【基金】：国家自然科学基金项目(513111122)~~
【分类号】：TM743

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