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首页> 外文期刊>Electric Power Components and Systems >An Algorithm for the Efficient Management of the Power Converters Connected to the DC Bus of a Hybrid Microgrid Operating in Grid-connection Mode
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An Algorithm for the Efficient Management of the Power Converters Connected to the DC Bus of a Hybrid Microgrid Operating in Grid-connection Mode

机译:用于高效管理并网模式下混合微电网的直流母线的功率转换器的算法

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摘要

In this paper a centralized control strategy for the efficient power management of the power converters conforming a hybrid distributed generation microgrid is explained. The microgrid is based on a DC and an AC bus. The study is focused on the converters connected to the DC bus. The proposed power management algorithm is implemented in a microgrid central processor. This algorithm is based on assigning several operation functions to each of the generators, loads and energy storage systems in the microgrid. A communication system is used to assign the operation functions to each of the microgrid elements. The power flows between the DC and AC buses are studied in several operation scenarios, in which the proposed control can be verified. Experimental and simulation results demonstrate that the algorithm allows to control the power dispatch inside the microgrid properly, by performing the following tasks: (1) the communications among power converters, the grid operator and intelligent loads, (2) the connection and disconnection of loads, (3) the control of the power exchange between the distributed generators and the energy storage system, (4) the compliance of the power dispatch limit set by the grid operator, (5) the synchronization with the grid and (6) the control of the voltage at the DC bus.
机译:本文阐述了一种集中控制策略,用于对符合混合分布式微电网的功率转换器进行有效的功率管理。微电网基于直流和交流总线。该研究的重点是连接到直流母线的转换器。所提出的电源管理算法是在微电网中央处理器中实现的。该算法基于为微电网中的每个发电机,负荷和能量存储系统分配几个操作功能。使用通信系统将操作功能分配给每个微电网元素。在几种运行方案中研究了直流母线和交流母线之间的功率流,可以验证所提出的控制。实验和仿真结果表明,该算法可通过执行以下任务来控制微电网内的功率分配:(1)功率转换器,电网运营商和智能负载之间的通信,(2)负载的连接和断开;(3)分布式发电机与储能系统之间的电力交换控制;(4)符合电网运营商设定的功率分配限制;(5)与电网同步;以及(6)控制直流母线的电压

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