Bi-Level Volt-VAR Optimization to Coordinate Smart Inverters With Voltage Control Devices

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 ...

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 ...

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

Multiobjective daily Volt/VAr control in distribution systems with distributed generation using binary ant colony optimization

This paper presents a multiobjective daily voltage and reactive power control (Volt/VAr) in radial distribution systems, including distributed generation units. The main purpose is to determine optimum dispatch schedules for onload tap changer (OLTC) settings at substations, substation-switched capacitors, and feeder-switched capacitors based on the day-ahead load forecast. The objectives are s...

Reliability Analysis and the Volt/VAr Control for Smart Distribution Feeders

With ongoing smart grid activities, there are a number of active demonstration projects in different parts of the USA. In the northwest, a demonstration project is being implemented by Avista Utilities to improve the reliability and efficiency of the distribution system. This project includes automated management of the distribution system and bi-directional communication capabilities between t...