I uses observations at the correct time i calculates analysis at the correct time i implicitly generates. Varbias as a new concept to unify vvo with oltcs and caps use a varias characteristic to change the response of the oltc regc or ltcc the varbias characteristic can be tailored for normal operation noncvr and cvr operation normal noncvr operation. Adopting voltvar optimization technologies nemacast. He provides customer and industry linkage to beckwith electrics solutions, as well as contributing expertise for application engineering, training and product development. By driving forward a systemwide voltage optimization.
Ymca athletes village microgrid for the 2015 toronto panparapan american games challenge the electricity grid in north america is being challenged like never before. Voltvar optimization vvo in utility distribution systems require range anytime. In distribution networks, there are slow controlling devices and fast controlling devices for voltvar regulation. I can handle lots of observations i can better cope with nonlinear observation operator h i solves for the whole domain at once 4d var is better than 3d var because. Pdf robust reactive power optimization and voltage control.
I reduce errors by assimilating more frequently, but that has its own problems. Jackson explains that 4 ami includes advanced meters that will support greater customer energy usage 5 data and customer choice, more efficient outage management, and smart rate. Yinger southern california edison to be presented at the world renewable energy congress viii denver, colorado. Etap offers several powerful analysis software modules for systems optimization including voltvar optimization, optimal power flow, switching optimization, and more. Coastal flooding, wildfires, extreme heat, hurricanes and recently in ontario ice storms have resulted in millions of people losing. Voltvar management solutions for smart grid distribution. Pdf volt var optimization vvo and conservation voltage reduction cvr provide an opportunity. The vvo problem, in the classical sense, is the optimal operation of the capacitor banks and under load tap changers ultcs. This is a use case document that describes how to provide voltvar optimization through capacitor bank control when there is a kvar limit excursion on an analog measurement. Tricia breeger of mitsubishi electric power products discusses voltvar technologies. Utilities can know beforehand how much their network can be improved. A program to undervolt amd 14h family processors e350 at least under linux. A framework for voltvar optimization in distribution systems. 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.
In this work, the loads are updated every one hours through open dss, which represents exactly the operating duty of advanced meter infrastructure ami in real world. Modelfree voltvar control based on measurement data analytics. Etap offers several powerful analysis software modules for systems optimization including volt var optimization, optimal power flow, switching optimization, and more. Simulating such a system gives crucial information such as the switching of capacitors and optimal tap positions of voltage. 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. Optimal inverter var control in distribution systems with. Responds to onoff commands from the controller and reports status information, power system measurements, and. Integrated voltvar regulationoptimization americans for a. Voltvar optimization vvo is a tool to dynamically adjust the distribution system to reduce system losses and minimize demand. Var stands for voltamps reactive and is the measuring unit for reactive power. Cyme power engineering software and solutions voltvar.
Realtime vvo requires realtime data such as voltage, current, active power and reactive power, to be captured from smart meters at customer site 1. Ameren illinois considering model based vvo controller acquisition. Many schemes are in common use for verifying cvr results. Dynamic voltvar optimization challenges voltvar 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. It has been demonstrated that the proposed method can be easily. Modern optimization models and techniques for electric. Voltvar optimization vvo function is a key element in advanced distribution management system dms functionality.
Varflow temperature time of day season centralized automation. Phan abstract this article introduces modern optimization models and solution methods for two fundamental decision making problems in electric power system operations, the optimal power. The intent of the study detailed in this paper is to demonstrate the benefits of inverter var control on a fast timescale to mitigate rapid and large voltage. Now, with smart grid technology, we can use a more intelligent approach and put into place volt var optimization, or vvo for short. Sensitivity based voltvar control and loss optimization by anurag r. Voltage and var optimization vvo is a key smart grid ap plication. Before diving into integrated voltvar optimization, it is important to. Translation find a translation for voltvar optimization in other languages. She explains the differences between traditional voltvar management technologies and newer vvo technologies, as well as the benefits to electric utilities of adopting these technologies. System optimization voltvar optimization optimal power. Conservation and optimization via volt var control tuesday, october 28, 2014 8.
Methodology for volt var optimization on a substation basis may th, 2011 version 1. Compared to var, cvar is attractive since it is a coherent risk measure. Con edison, national grid, duke energy, and morristown utility systems will provide case studies of their vvo programs. 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. 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. Electrical and computer engineering the objective of this study is to control voltage at different points in a distribution grid to within a speci. Voltvar optimization summary voltvar optimization vvo is a tool to dynamically adjust the distribution system to reduce system losses and minimize demand. Utilizing the results from aics cvr pilot project, aic is utilizing the following process for designing its voltvar implementation. Volt var optimization technology works as expected testing validates that 24% energy and demand reduction is achievable. Download pdf 28 kb the department of energys office of electricity oe recognizes that our nations sustained economic prosperity, quality of life.
Simple paybacks for these projects were generally in the 0 2 year range. Cvr schemes were primarily scada actuated but were initiated by human operators. Omaha, nb implementing voltvar optimization october 12. Volt var optimization vvo and conservation voltage reduction cvr provide an opportunity to improve the power system performance in terms of efficiency and usability. 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. Vvo controls the flow of power on the distribution system to increase efficiency and reliability, reduce distribution energy losses, and accommodate new power fl ows, such as those originating from distributed generation. Wayne hartmann is vp, protection and smart grid solutions for beckwith electric. Voltvar optimization improves the efficiency of the distribution grid saving money, electricity and reducing emissions the distribution grid is inefficient. Vvo refers to the optimization of reactive power and voltage regulation resources on the.
Voltvar 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. The results obtained on ieee 30bus system showed that the hybrid method based on psoipm gives the best results compared to the other methods. After few days of initial exploration, the proposed vvc is capable to give satisfactory results near to that of a modelbased optimization technique. I will give you an answer that cannot be found in a textbook. Butterfield national renewable energy laboratory r. Name role description system operator monitors and controls system operation telemetry interface provides telemetry data in the form of analog. Volt var optimization vvo function is a key element in advanced distribution management system dms functionality. Integrated voltvar regulationoptimization before diving into integrated volt var optimization, it is important to understand the concept of var. Var support from distributed wind energy resources preprint july 2004 nrelcp50036210 h. Dommel, life fellow, ieee abstractthe possibility of leveraging the data provided by smart meters to understand the load characteristics is studied in this paper. Minimizing cvar and var for a portfolio of derivatives.
Voltage and volt ampere reactive var optimization vvo is a smart gridenabled utility application. Utility investment in communications and smart grid investment links all facets from endcustomer to generation, transmission. Voltvar optimization vvo in utility distribution systems 1. Voltage and voltampere reactive var optimization vvo is a smart gridenabled utility application. Ivvo stands for integrated voltvar optimization electricity. Capacitor banks control the level of voltage supplied by minimizing voltage drops and absorbing energy from a line spike. 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. Application of narrow band power line communication in.
Provide voltvar optimization through capacitor bank control when there is a kvar limit excursion on an analog measurement. This paper develops a model free volt var optimization vvo algorithm via multiagent deep. Session moderators jared green, epri joe paladino, doe. Powerstream dynamic voltvar optimization opus one solutions. Jackson explains that 4 ami includes advanced meters that will support greater customer energy usage. Engineers and crews can view status of substation, feeders, capacitors and voltage devices, set control constraints, and operate switches manually. A better way is to introduce the time dimension into the. Pdf a smart voltvar optimization engine for energy distribution.
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. Volt var optimization with energy savings for distribution system using intelligent control. A comprehensive methodology for voltvar optimization in. We illustrate that var and cvar minimization problems for derivatives portfolios are. Cyme power engineering software and solutions optimize your distribution network through voltvar management the voltvar optimization vvo analysis module simulates a volt var management application. Powerstream, a communityowned energy company providing power and related services to more than 375,000 customers residing or owning businesses in. This paper develops a model free voltvar optimization vvo algorithm via multiagent deep. From the information provided so far, the extent of the voltage drop between the. This inefficiency leads to wasted electricity, unnecessary generation, squandered money, and harmful co2 in the atmosphere. This paper develops a modelfree voltvar optimization vvo algorithm via multiagent deep reinforcement learning.
Grid2020 and dvi have collaborated to solve the global voltage optimization need by leveraging the versatility of the optanode dtm intragrid sensor to measure voltage data and feed realtime information into the edge voltage optimization engine, giving the market a completely new and financially compelling value proposition. These slow controlling devices, such as capacitors. The difference is found in what we know about the status of the power lines. Pdf abstractvoltvar optimization is a renovated smart grid technology that utilized the advance. Voltvar management market by component, application 2024. Modern optimization models and techniques for electric power systems operation andy sun and dzung t. We explain the structure of the optimal inverter var injection as solar output and as load vary, and demonstrate the improvement in voltage regulation and ef. Value at risk var and conditional value at risk cvar are frequently used as risk measures in risk management. Aeps assessment of the potential for voltvar optimization concluded that the san cristobal grid is already operating at the lower end of the voltage range and cannot be further optimized without the risk of voltage drops below the authorized minimum level. Capacitor switch states, loads, voltages, and circuit var loss performance statistics are conveniently at their fingertips.
A framework for voltvar optimization in distribution systems hamed ahmadi, student member, ieee, jose r. Voltvar optimization controller is a device controlled and managed by dscada and it interacts with rtus and field devices. 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. Integrated voltvar regulationoptimization before diving into integrated voltvar optimization, it is important to understand the concept of var. Ivvo is defined as integrated voltvar optimization electricity somewhat frequently. Provide volt var optimization through capacitor bank control when there is a kvar limit excursion on an analog measurement. The voltvar optimization vvo analysis module simulates a voltvar management application.
Ivvo is defined as integrated voltvar optimization electricity. Omaha, nb implementing voltvar optimization october 12, 2017. Vvo controller rules based acquired and implemented in ameren missouri. The objective of the vvo techniques is to optimize some metric of the system performance such as active power loss or voltage.
Global climate change is causing extreme weather events to occur more frequently. Cyme power engineering software voltvar optimization. Voltvar optimization improves the efficiency of the. The total running time is 6 seconds, which is greatly fast compared to the practical requirement.
How is integrated voltvar optimization electricity abbreviated. 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. A matter of time so far all data assumed to be at the analysis time. Industry experience with voltvar optimization shows 1. Voltvar optimization capacitor banks control the level of voltage supplied by minimizing voltage drops and absorbing energy from a line spike. This conference will present the economic case for voltvar optimization. We analyze the problem of computing the optimal var and cvar portfolios. Vvo function is designed to optimize the voltage and reactive power flow in. Modern optimization models and techniques for electric power. Deep reinforcement learning based voltvar optimization in. Voltvar optimization vvo via power factor correction was preferred strongly to cvr via active voltage regulation. Voltvar optimization vvo is a priority application for many utility companies. Case study powerstream deploys opus one solutions dynamic voltvar optimization scheme to improve feeder reliability and minimize losses.514 181 1005 781 1499 510 877 263 1486 1127 445 433 778 1008 1306 1098 633 866 1133 316 793 1036 888 1172 508 1105 1026 198 1143 1302