Voltage Stability in a Grid-Connected Inverter With Automatic Volt-Watt and Volt-VAR Functions

State Estimation and Volt-Var Control in Smart Distribution Grid

Distribution smart grid is very important part of the smart grid. Utilities use Distribution Management System (DMS) as supervisory control layer at the power system control centers. State Estimation (SE) and Volt-Var Control (VVC) are the prime applications of the DMS. In the modern DMS, SE is required for extensive monitoring and control of the entire distribution network. In the presence of ...

Integrated Volt-VAR Regulation/Optimization

Before diving into integrated volt-VAR optimization, it is important to understand the concept of VAR. VAR stands for Volt-Amps Reactive and is the measuring unit for reactive power, which is created by energizing transformers and powering motors, pumps, air conditioners, and other similar devices [2]. These electric appliances have large coils and magnets inside them and require both real and ...

Volt/Var Control in Distribution Networks with High Penetration of PV Considering Inverter Utilization

In this paper, a Volt/Var control strategy in distribution networks with high PV penetration considering inverter thermal model is presented. This strategy considers a central distribution control to schedule active power and reactive power to deal with solar power generation intermittency. The objective is to provide voltage regulation control while solving for optimal power flow to minimize b...

Photovoltaic Impact Assessment of Smart Inverter Volt-VAR Control on Distribution System Conservation Voltage Reduction and Power Quality

Experimental Distribution Circuit Voltage Regulation using DER Power Factor, Volt-Var, and Extremum Seeking Control Methods

With the rapidly increasing number of distributed energy resources (DER) on electric grids worldwide, there is a growing need to have these devices provide grid services and contribute to voltage and frequency regulation. PV inverters and other reactive-power capable DER have the capability to minimize distribution losses and provide voltage regulation with grid-support functions such as volt-v...