Voltage Coordinated Control Strategy for Distribution Networks Based on Multi-Time Scale Sequential Action Control
DOI:
https://doi.org/10.13052/dgaej2156-3306.4033Keywords:
High penetration of new energy sources, low-voltage distribution network, time response scale, controllable voltage regulation devicesAbstract
In response to the current issues of high penetration of renewable energy sources and excessively complex loads, this paper proposes an effective coordinated control strategy combining different time response scale sequential action control in low-voltage distribution networks. Initially, the paper analyzes controllable voltage regulation devices with varying response time scales, followed by the proposition of a strategy for coordinated control involving multiple controllable voltage regulation devices. Finally, through simulations conducted in MATLAB/SIMULINK on an improved IEEE 33-node system and an actual low-voltage distribution system in a city in Zhejiang province, the following outcomes were observed: in the enhanced IEEE 33-node system, the voltage deviation rate decreased to 3%, with a voltage compliance rate increasing to 95.07%; in the actual low-voltage distribution system in Zhejiang city, the voltage deviation rate decreased to 1.7%, with a voltage compliance rate rising to 99.04%. This approach effectively addresses voltage limit issues and complex load concerns post renewable energy integration, providing assurance for the safe and stable operation of low-voltage distribution networks.
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