论文标题
寻求控制混合风能存储DC电源系统的极端电源
Extremum Power Seeking Control of A Hybrid Wind-Solar-Storage DC Power System
论文作者
论文摘要
本文提出了一个组合的电源系统，其中包含太阳能，风能，电池存储和恒定直流负载（CDL）的通用直流总线。在风系统中，在第一阶段使用AC-DC不受控制的整流器，并且DC-DC转换器在第二阶段由最大功率点跟踪器（MPPT）控制。在太阳系中，通过滑动模式控制器（SMC）控制两个级联的增压转换器，以调节载荷的功率流。还引入了一种监督控制策略，以最大程度地利用可再生能源的能量收获，并平衡来源，电池和负载之间的能量。根据每个可再生能源的发电水平，电池中的充电状态以及负载要求，控制器会导致四个突发事件。仿真结果表明，监督控制器的准确操作以及最大功率点跟踪太阳能和风能的功能。
This paper presents a combined power system with a common dc bus that contains solar power, wind power, battery storage, and a constant dc load (CDL). In wind system, an AC-DC uncontrolled rectifier is used at the first stage and the DC-DC converter is controlled by a maximum power point tracker (MPPT) at second stage. In the solar system, two cascaded boost converters are controlled through a sliding mode controller (SMC) to regulate the power flow to the load. A supervisory control strategy is also introduced to maximize the simultaneous energy harvesting from both renewable sources and balance the energy between the sources, battery, and the load. According to the level of power generation available at each renewable energy source, the state of charge in the battery, and the load requirement, the controller results in four contingencies. Simulation results show the accurate operation of the supervisory controller and functionality of the maximum power point tracking algorithm for solar and for wind power.
