Provide voltvar optimization through capacitor bank control when there is a kvar limit excursion on an analog measurement. Industry experience with voltvar optimization shows 1. However, it is also important to understand the impact of it on the life of the other assets in a distribution system. Conservation and optimization via volt var control tuesday, october 28, 2014 8. Var optimization vvo methods to reduce customer power demand by controlling.
Volt var optimization vvo the dms600 volt var control system provides full scada. This post is one in a series featuring the complete slate of advanced energy technologies outlined in the report this is advanced energy voltage and volt ampere reactive var optimization vvo is a smart gridenabled utility application. Voltage control and var optimization methodologies are also presented in 26 and 27 that consider feeder reconfiguration in addition to. Var control vvc is a fundamental operating requirement of all electric distribution systems the prime purpose of vvc is to maintain acceptable voltage at all points. Volt var optimization improves grid efficiency introduction traditional voltage var management1 technologies have been used by the power industry for over 30 years to reduce electric line losses and increase grid efficiency. In the second stage, the reactive power and volt var control are addressed by taking into account the mediumvoltage mv and lowvoltage levels independently. Optimize your distribution network through voltvar management. The application of voltvar optimisation on south african. A framework for voltvar optimization in distribution systems hamed ahmadi, student member, ieee, jose r. Provide voltvar optimization through capacitor bank control when there is a kvar limit.
Integrated voltvar optimization with distributed energy. Development and field test of voltage var optimization in. This paper addresses the integrated volt var control for distribution network operation via multiobjective optimization. Volt var optimization automate your switching processes with a twoway network capacitor banks control the level of voltage supplied by minimizing voltage drops and absorbing energy from. Var control reactive power control volt var control devices and voltage optimization control schemes scada, ami and communication infrastructure vvo benefits, challenges and future development system integration, testing, deployment and evaluations of vvos vvo use cases relevant guidelines and standards for vvo vvo lifecycle asset management. Evaluation of conservation voltage reduction cvr on a national level. Provide volt var optimization through capacitor bank control when there is a kvar limit. The module simulates a volt var management application. Cyme power engineering software voltvar optimization. The voltvar optimization vvo analysis module simulates a voltvar management application. It not only controls reactive power flow with drives losses on distribution feeders, but it also reduces peak demand which is critical for utilities.
The voltvar optimization vvo analysis module simulates a volt. The combination of edge voltage optimization and volt var optimization increases savings as well as improves reliability. Voltvar optimization vvo via power factor correction was preferred strongly to cvr via active voltage regulation. The application of volt var optimisation on south african distribution power networks by dayahalan thangavelloo chetty student number. Volt var optimization with energy savings for distribution system using intelligent control. Utility investment in communications and smart grid investment links all facets from endcustomer to generation, transmission. Voltage and var optimization vvo is a key smart grid ap. Sensitivity analysis of voltvar optimization to data. Ivvo stands for integrated voltvar optimization electricity.
The concept of volt var management or control is essential to electrical. Abstractconservation voltage reduction cvr uses volt. Case study powerstream deploys opus one solutions dynamic volt var optimization scheme to improve feeder reliability and minimize losses. Now, with smart grid technology, we can use a more intelligent approach and put into place voltvar optimization, or vvo for short. The modelbased vvo accounts for these reconfigurations explicitly and automatically without change in the control optimization algorithm and permits determination of optimal switched capacitor states and voltage regulator settings as the system changes.
Integrated voltvar regulationoptimization americans for a. Volt var optimization with energy savings for distribution system using intelligent control abstract. Unlimited viewing of the articlechapter pdf and any associated supplements and figures. Volt var control at dominion presented to euci volt var optimization conference june 1112, 2012. Voltage and var optimization vvo is the latest addition to those applications. Jan 30, 2017 tricia breeger of mitsubishi electric power products discusses volt var technologies. Introduction to power system voltvar optimisation dec 2018. Reactive power management aims to improve the power factor to reduce the active power losses in the circuit. A new generation of automation control software is providing greater choices in data transmission and storage, more robust functionality in twoway controls that allow bidirectional communication, and. Voltvar optimization improves the efficiency of the. I will give you an answer that cannot be found in a textbook. Volt var optimization vvo is the tool which improves the efficiency of the distribution system by coordinating the voltage and reactive power. Amsc launches volt var optimization for distribution. This implementation requires the development of rules to narrow feeder voltage profile to operate.
Simulating such a system gives crucial information such as the switching of capacitors and optimal tap positions of voltage regulators and ltcs leading to loss and demand reduction. In the literature, many works detail the benefits of volt var control to minimise the losses in a distribution system. Effective volt var optimisation solutions can also help reduce losses that occur during the distribution of electricity, enabling utilities to lower their energy purchases and the associated greenhouse gas emissions. Voltvar management solutions for smart grid distribution.
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. A wide panorama of technology already exists to achieve that objective. Integrated voltvar control ivvc coordinated control of substation load tap changers, feeder voltage regulators and capacitor banks ensure var and voltage profiles to optimize these benefits. Due to voltagedependence of loads, both real and reactive power will be affected by variation in voltage. He provides customer and industry linkage to beckwith electrics solutions, as well as contributing expertise for application engineering, training and product development. Pdf the possibility of leveraging the data provided by smart meters to understand the load characteristics is studied in this paper. Var control reactive power control voltvar control devices and voltage optimization control schemes scada, ami and communication infrastructure vvo benefits, challenges and future development system integration, testing, deployment and evaluations of vvos vvo use cases relevant guidelines and standards for vvo vvo lifecycle asset management.
Cyme power engineering software and solutions optimize your distribution network through volt var management the volt var optimization vvo analysis module simulates a volt var management application. The vvo problem, in the classical sense, is the optimal operation of the capacitor banks and under load tap changers ultcs. But, injecting reactive power affects the system voltages. How is integrated voltvar optimization electricity abbreviated. Voltage and var optimization vvo is a key smart grid ap plication. Voltvar optimization summary voltvar optimization vvo is a tool to dynamically adjust the distribution system to reduce system losses and minimize demand. The objective of the vvo techniques is to optimize some metric of the system performance such as active power loss or voltage. Introduction to power system voltvar optimisation oct. Ksdms vvo enhances manual system operation of the existing distribution system and provides a solution with all control equipment. The difference is found in what we know about the status of the power lines. Java project tutorial make login and register form step by step using netbeans and mysql database duration.
Volt var control optimization bob uluski quanta technology. Volt var optimization vvo and conservation voltage reduction cvr provide an opportunity to improve the power system performance in terms of efficiency. Review on voltvar optimization and control in electric. These software applications help utility companies implement smart grid strategies while enhancing system optimization. The application of volt var optimisation on south african distribution power networks. Etap offers several powerful analysis software modules for systems optimization including volt var optimization, optimal power flow, switching optimization, and more. The introduction of the smart grid concept and advanced metering infrastructure ami technologies in the power systems area has attracted new attention to make distribution systems efficient and save more energy. Increases available savings by flattening the customer voltage profile along the circuit, edge creates additional headroom for voltage optimization.
The banks also provide volt var control by switching in capacitor banks to compensate for var losses when large inductive loads occur, such as when air conditioners, furnaces, dryers, andor. Dommel, life fellow, ieee abstractthe possibility of leveraging the data provided by smart meters to understand the load characteristics is studied in this paper. Concept of multi objective optimization the problem of optimizing a distribution system involves multi objectives i. Bilevel voltvar optimization to coordinate smart inverters. Using advanced solutions to achieve volt var control will also allow utilities to reduce peak demand through voltage conservation. Powerstream, a communityowned energy company providing power and related services to more than 375,000 customers residing or owning businesses in. Boyi bukata, bala 20 evolutionary optimisation for volt. Integrated voltvar regulationoptimization before diving into integrated volt var optimization, it is important to understand the concept of var. With the proper implementation of technology and a concerted effort we can reduce electric energy losses and the demands made on electric distribution systems. Jan 28, 2020 voltvar optimization capacitor banks control the level of voltage supplied by minimizing voltage drops and absorbing energy from a line spike.
The patented adaptivolt software has been installed at major electric utilities and industrial facilities in the u. This paper seeks to explore the problem of energy savings and peak demand. System optimization voltvar optimization optimal power. Optimizes power factor at the customer level unlike other volt var approaches, edge optimizes power factor using customer.
Yukon volt var management software is one of eaton s grid. A comprehensive methodology for voltvar optimization in. Extension of life of distribution transformer using voltvar. Many schemes are in common use for verifying cvr results. Yukon voltvar management software energy efficiency eaton. For smart grid distribution automation applications. Session moderators jared green, epri joe paladino, doe. Var stands for voltamps 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. Voltvar optimization with energy savings for distribution. Consequently, rather than minimizing active energy of the system, the focus of this article to. Discover why excessive volt ampere reactive var power on a distribution network is inefficient and how the problem can be solved. Cyme volt var optimization module brochure pdf 454 kb this brochure describes eatons cyme volt var optimization module and how it helps find the optimal way to operate distribution network so that the current and future demand can be met through.
Volt var optimization vvo is a process of optimally managing voltage levels and reactive power to achieve more efficient gird operation by reducing system losses, peak demand or energy consumption or a combination of the three. Introduction to power system voltvar optimisation octnov 2019. Irvine smart grid demonstration 07292015 panel session. Would you freak out if i told you that the power we use and the power we see in our day to day lives is only a particular component of power. D var vvo optimizes power electric grids at the distribution level, providing the essential flexibility and responsiveness needed as electric grids evolve toward a distributed generation dg architecture. Smart grid, optimization, epri use case repository, volt var, capacitor bank control, kvar limit excursion, analog measurement summary. Cyme power engineering software and solutions voltvar. Volt var optimization vvo function is a key element in advanced distribution management system dms functionality. He provides customer and industry linkage to beckwith electrics solutions, as well as contributing expertise for application engineering, training and. Eaton s cyme volt var optimization module is a powerful tool that helps find the optimal way to operate the distribution network so that current and future demand can be met through energy efficiency improvement and demand reduction. What is voltvar optimization and why is it so important.
Volt var optimisation recent market advancements and innovations are making realtime voltage and var optimisation possible. Power ow from the distribution substation to the customer can be optimised at volt amperereactive var level by reducing the reactive power. A framework for voltvar optimization in distribution. Var stands for voltamps reactive and is the measuring unit for reactive power, which. Simulating such a system gives crucial information such as. A framework for voltvar optimization in distribution systems. Advanced voltvolt at the end of this course, attendees should network scenarios. Saving energy on campus with volt var optimization technology. Voltsvar optimisation training singapore poweredge asia.
Oldergeneration, rulebased volt var methods were not able to account for the system changes. These programs are intended to reduce enduse customer energy consumption and peak demand while also reducing utility distribution system energy losses. This is a use case document that describes how to provide volt var optimization through capacitor bank control when there is a kvar limit excursion on an analog measurement. Voltvar optimization vvo in utility distribution systems 1. Before diving into integrated voltvar optimization, it is important to understand the concept of. Wayne hartmann is vp, protection and smart grid solutions for beckwith electric. Volt var optimization includes conservative voltage reduction cvr function that is used to calculate and maintain acceptable voltage e. She explains the differences between traditional volt var management technologies and newer vvo technologies, as well as the benefits to electric utilities of adopting these technologies. Vvo function is designed to optimize the voltage and reactive power flow in. Eaton s yukon volt var management software applications monitor realtime voltages, watts and vars from ltcs, regulators, capacitors, medium voltage sensors, and additional monitoring points such as customer meters. Volt var watt optimization vvwo within normal voltage limits includes demand response at the voltagecritical point to increase the effectiveness of the vvo 6, 7.
Cvr schemes were primarily scada actuated but were initiated by human operators. Pdf volt var optimization vvo and conservation voltage reduction cvr provide an opportunity to improve the power system. Introduction voltage regulation in distribution systems means maintaining acceptable voltages at all customer load points within ansi limits 0. Pdf the application of voltvar optimisation on south. Volt var optimization technology works as expected testing validates that 24% energy and demand reduction is achievable. Volt var optimization are one of the fundamental power system functions for maintaining voltage profiles and reducing losses, yet being challenged by complex twoway power flow with ders e. This concept of optimizing the system losses by reducing reactive power flow which in turn affects system voltages is referred to as volt var optimization. Watt curve for smart inverters applying optimization of activereactive power allocation for each inverter. Adopting voltvar optimization technologies nemacast. Integrated voltvar regulationoptimization before diving into integrated voltvar optimization, it is important to understand the concept of var. Simple paybacks for these projects were generally in the 0 2 year range. Exploration of how smart inverters can enhance vvo 3. Pdf a framework for voltvar optimization in distribution systems.
Volt var control and optimization concepts and issues and issues. In the first stage, the optimisation strategy solves a multitemporal active power scheduling problem for the mgc based on consumption and generation forecasts. Name required email address required contact number required job title. Volt var efficiency today, volt var optimization is one of the key investment areas of the smart grid. Figure 3 shows a smart optimization framework proposed by singh s et al. Volt var optimisation vvo is a process of optimally managing voltage levels and reactive power to achieve more efficient gird operation by reducing system losses, peak demand or energy consumption or a combination of the three as well as improving voltage stability. Omaha, nb implementing voltvar optimization october 12. Ivvo is defined as integrated voltvar optimization electricity somewhat frequently. Voltage optimization vo is a combination of conservation voltage reduction cvr and volt var optimization vvo. Simulating such a system gives crucial information such as the switching of capacitors and optimal tap positions of voltage. The volt var optimization vvo model is combined with distributed energy resources e.