Work

Optimal Placement and Sizing of Reactive Power Compensation Devices in Power Grids with High Penetration of Distributed Generation

Year: 2025

Type: article

Abstract: To address voltage stability challenges in power grids with high penetration of distributed generation (DG), this paper proposes an optimal configuration method for reactive power compensation devices. Voltage-weak nodes are first identified using a novel short-circuit ratio (SCR) index. An average electrical distance metric is then introduced to determine optimal installation nodes by computing distances between candidate nodes and weak nodes. Subject to constraints on maximum compensation capacity and allowable DG disconnection limits, MATLAB simulations validate the optimal configuration. Case studies on modified IEEE 9, 14 and 39 bus systems confirm the method’s efficacy: DG tripping due to low-/high-voltage ride-through failures is effectively mitigated, with minimum fault voltage increasing by 0.05–0.08 p.u. and voltage recovery time reduced by 0.15–0.8 s.

Source: Processes

DOI: 10.3390/pr13092953

Authors: Nan Feng, Tao Niu, Jun Yan, Yufan Zhang, Yuyao Feng, Yuli Lei

Institutions: State Grid Shanghai Municipal Electric Power Company (China), Chongqing University

Language: English

Topic: Optimal Power Flow Distribution

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Industry, innovation and infrastructure, Affordable and clean energy

Open Access status: gold

Estimated APC paid: $2,896