Voltage Control of Active Distribution Network with Flexible DC Devices Based on Model Predictive Control

doi:10.3969/j.issn.1000-7229.2018.07.015

Abstract

Abstract: In this paper, a new method based on model predictive control is proposed to control the three phase voltage of active distribution network （ADN） with flexible DC devices. In this method, the active distribution network is divided into several regions, and the multi-time control strategy of the global optimization control and regional MPC control are adopted. The global control obtains the regional dominant node voltage and the discrete device control instructions with the goal of minimize the network loss. Rolling optimization method based on model predictive control is used in the region control to deal with the instantaneous fluctuation of distributed resource. Constructing with the traditional open loop method, the proposed model is verified that it is contributed to dealing with over limit of the voltage out caused by the fluctuation of distributed resources. It is also demonstrated that the proposed distributed control has greater efficiency than the centralized control.

Key words: flexible DC device, active distribution network（ADN）, model predictive control（MPC）, divisional control

CLC Number:

DONG Lei, MING Jie, MENG Tianjiao, CHEN Naishi, PU Tianjiao. Voltage Control of Active Distribution Network with Flexible DC Devices Based on Model Predictive Control[J]. Electric Power Construction, 2018, 39(7): 123-128.

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