## 1 Introduction  
Renewable energy sources (RES) have extended the capability of the grid to fulfill an ever-increasing load demand. The benefits of RES are reduced cost of energy production, increased generation capacity, reduction in energy curtailment, and improved voltage profile across the feeder [1]. However, inconsistency of photovoltaics (PV) generation accounts for numerous challenges in low voltage (LV) distribution networks [2]. Some of these challenges are sustained power interruptions, voltage regulation, harmonics, and voltage sags [3]. Smart inverters with appropriate control strategies can tackle these challenges to increase the profitability from RES like PV in LV grids. Voltage regulation describes the ability of a system to maintain constant voltage under different load conditions. According to American National Standards Institute (ANSI) C84.1-2016 [4], voltage standards for service voltage limits are classified as Range A and Range B limits. The voltage between 0.950 p.u. and 1.050 p.u. of nominal voltage lies under Range A, and the voltage between 0.917 p.u. and 1.058 p.u. of nominal voltage for 240 V service voltage lies under Range B. Note that the voltage can be within Range B for only a short duration and frequency, and thus corrective measures are necessary to construct the voltage level within Range A limits. When the voltage is subjected to beyond Range B, overvoltage conditions exists in the LV distribution network. Furthermore, the voltage limits usually provided for distributed generation (DG) protection spans from 0.88 p.u. to 1.10 p.u. of nominal voltage. Even though the feeder voltage surpasses Range B (1.058 p.u. ), DG protection is not enabled unless voltage exceeds 1.10 p.u. This scenario leads to overvoltage conditions in the LV feeder. Even if the protection is enabled for voltages below 1.10 p.u., it results in complete outage of the given DG, which is undesirable. In such cases, overvoltage in the system causes high power consumption by the load, increase in transformer losses, and high power dissipation in induction machines [5]. Recent revisions in IEEE 1547 standard [6], smart inverter functions like Volt-Var and Volt-Watt control have been encouraged to mitigate the overvoltage problem. These functions controls active and reactive power for reducing voltage at the point of interconnection of DG. In the literature, overvoltage in distribution systems has been dealt with different methods such as expanding the conductor size of the feeder, using voltage regulators, modification of the taps of LV transformers [7], integration of energy storage systems (ESSs) like batteries [8; 9; 10], and inverter control approaches like Volt-Watt (active power curtailment (APC)) and Volt-Var (reactive power compensation) methods [11; 12; 13; 14; 15; 16]. Prior research has merged reactive power compensation with additional methods for overvoltage prevention [17; 18] which tends to be expensive, increases losses in the system, and requires communication links between controllers. Using reactive power compensation, higher transformer and distribution system losses were reported in [19; 20] compared to droop-based APC control in LV feeders. Overvoltage control from smart inverters using droop-based APC approach (Volt-Watt control) has been studied in residential feeders with high PV penetration in [21] and small-scale wind turbines in [22]. In the APC-based method, smart inverters curtail power locally to deal with overvoltage issues. A constant droop coefficient is set in this approach to control the voltage for worst condition. However, this leads to forced curtailment that reduces the power injection by PV inverters during irrelevant situations. To overcome this constrained curtailment, [PERSON] et al. [23] proposed power control method by continuously predicting the bounds of active power to frequently calculate the droop values. Furthermore, [PERSON] et al. [24] proposed adaptively adjusting the curtailment for maintaining the voltage under bounds along with maximizing PV generation.