A Supervisory Modified Control Scheme for Power Management in Multi Bus DC Microgrid

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2019-10-01 DOI:10.1109/IECON.2019.8926999

Rohit R. Deshmukh, M. Ballal

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引用次数: 3

Abstract

This article proposes a modified control method to improve the bus voltage deviation and power sharing among the sources in multi bus DC microgrid. In DC Microgrid bus voltage regulation and load sharing between the sources is necessary for reliable and stable operation of system. The bus system in microgrid improves the reliability of overall system in case of bus failure. In the multi bus system, the line resistances and power flow in the system deviates the load bus voltage from its nominal value. It also affects the power sharing between the sources. The proposed control scheme overcomes the bus voltage deviation from its nominal value without affecting the power sharing among the sources. It also mitigates the power sharing mismatch because of unequal line resistances in multi bus system. The overall control is operated in distributed control with shared data from low bandwidth communication links. The designed control scheme balances the power flow within the DC microgrid along with energy storage system (ESS) operation. The proposed control scheme is verified in real time simulator.

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一种多母线直流微电网电源管理的监督改进控制方案

本文提出了一种改进的控制方法，以改善多母线直流微电网中母线电压偏差和电源间的功率共享。在直流微电网中，母线电压调节和源间负荷分担是保证系统可靠稳定运行的必要条件。微电网母线系统在母线发生故障时，提高了整个系统的可靠性。在多母线系统中，系统中的线路电阻和潮流使负载母线电压偏离其标称值。它还会影响电源之间的功率共享。所提出的控制方案克服了母线电压偏离标称值的问题，同时又不影响电源间的功率共享。同时也减轻了在多母线系统中由于线路电阻不等造成的功率分配失配。总体控制在分布式控制中运行，并从低带宽通信链路共享数据。所设计的控制方案平衡了直流微电网内部的潮流以及储能系统的运行。通过实时仿真验证了所提出的控制方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

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