Voltage regulation-oriented co-planning of distributed generation and battery storage in active distribution networks. (February 2019)

• Record Type: Journal Article
• Authors: Zhang, Yongxi; Xu, Yan; Yang, Hongming; Dong, Zhao Yang
• Is Part Of: International journal of electrical power & energy systems. Volume 105(2019)
• Page Start: 79
• Page End: 88
• Publication Date: 2019-02
• Subjects: Active distribution network -- Battery energy storage -- Collaborative planning -- Conservation voltage reduction -- Distributed generation -- Taguchi's orthogonal array testing; Electrical engineering -- Periodicals; Electric power systems -- Periodicals; Électrotechnique -- Périodiques; Réseaux électriques (Énergie) -- Périodiques; Electric power systems; Electrical engineering; Periodicals; 621.3
• DOI: 10.1016/j.ijepes.2018.07.036
• Languages: English
• ISSNs: 0142-0615

Abstract

Highlights: A two-layer collaborative planning for inverter interfaced DGs and BES units is established for enhanced voltage regulation functions in ADN. The potential of DG inverter over-sizing design at planning stage, the fully utilization mode of reactive power output of DG inverters at operation stage are discussed. A time-varying ZIP load model is adopted representing the dynamic load characteristics. The uncertainties of the DG power output are modeled based on the Taguchi robust test design approach. Abstract: Active Distribution Networks (ADNs) are featured by large-scale integration of distributed generation (DG) and energy storage. This paper proposes a novel two-layer co-planning method for optimal placement of inverter-interfaced DG and battery energy storage (BES) units towards enhanced voltage regulation functions in an ADN. The outer-later model determines the planning decision of DG units and the inverter sizing, location, and capacities of BES units, respectively; the inner-layer model corresponds to the operation decision which aims to optimally schedule the BES's charging/discharging and reactive power from inverters for voltage regulation support considering the conservation voltage reduction (CVR). The Taguchi's Orthogonal Array Testing (TOAT) is used to select a small number of scenarios to represent the DG power output uncertainties. The load is represented by a time-varying ZIP load model. The proposed model is tested on a modified IEEE 33-bus radial distribution system and the results to validate the effectiveness of the proposed method.