Coordinated active and reactive power management for enhancing PV hosting capacity in distribution networks

Abstract

This paper proposes an operational planning model based on optimal active and reactive power control strategies to enhance solar photovoltaics (PV)’ hosting capacity in distribution networks. Reactive power control is carried out through optimum static VAr compensators (SVCs) placement, while active power control is performed through flexible loads, particularly shiftable and interruptible loads. The first stage of the proposed two‐stage stochastic model assigns decision‐making regarding calculating PV hosting capacity at different nodes, in addition to the allocation and capacity of SVCs. In the second stage, the first stage decisions are assessed to ensure the power flow constraints under various uncertainties such as daily load and stochastic PV generation. The presented model is investigated through numerical analyses on modified IEEE 15‐bus and IEEE 33‐bus distribution systems considering different active‐reactive strategy cases. While most previous works only rely on one type of active or reactive power control strategy, this study investigates the challenges of the respective application of active and reactive power control in various modes of fundamental practices. The obtained results prove the superiority of the proposed hybrid active‐reactive control strategy for enhancing PV hosting capacity compared to respective active or reactive power controls.

A Comprehensive Review on Recent Developments of Hosting Capacity Estimation and Optimization for Active Distribution Networks

“…These approaches can be combined with other HC enhancement techniques to increase the merits however they require more attention to avoid their drawbacks on other systems parameters that may be performed maloperation of protection devices [360]- [362]. In [334], [363], [364], the ANM approaches are applied for coordinate control and planning of various components, such as ESSs, OLTC, and EVs, based on the ADNs with integrated DERs under their uncertainties. While in [365]- [367], factacting devices like PV inverters, and EV aggregators, are used to perform coordinated control for minimizing energy loss and sustaining optimal operation.…”

Integrated Active and Reactive Power Control Methods for Distributed Energy Resources in Distribution Systems for Enhancing Hosting Capacity

“…On the other hand, several studies have focused on active and reactive power management to enhance DER hosting capacity in distribution networks [25]. Research has shown that utilizing reactive power control positively impacts the enhancement of DER hosting capacity while reducing power flow constraint violations.…”