Modern optimization models and techniques for electric. Capacitor banks control the level of voltage supplied by minimizing voltage drops and absorbing energy from a line spike. 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. 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. Omaha, nb implementing voltvar optimization october 12, 2017.
Many schemes are in common use for verifying cvr results. Name role description system operator monitors and controls system operation telemetry interface provides telemetry data in the form of analog. Voltvar optimization vvo is a priority application for many utility companies. Conservation and optimization via voltvar control the smart grid experience. These slow controlling devices, such as capacitors. Pdf abstractvoltvar optimization is a renovated smart grid technology that utilized the advance. Powerstream dynamic voltvar optimization opus one solutions. 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. Voltage and voltampere reactive var optimization vvo is a smart gridenabled utility application.
Etap offers several powerful analysis software modules for systems optimization including volt var optimization, optimal power flow, switching optimization, and more. We analyze the problem of computing the optimal var and cvar portfolios. This paper develops a modelfree voltvar optimization vvo algorithm via multiagent deep reinforcement learning. 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. Cyme power engineering software voltvar optimization. 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. Voltvar optimization vvo is a tool to dynamically adjust the distribution system to reduce system losses and minimize demand. Pdf robust reactive power optimization and voltage control. I will give you an answer that cannot be found in a textbook. Capacitor switch states, loads, voltages, and circuit var loss performance statistics are conveniently at their fingertips. The vvo problem, in the classical sense, is the optimal operation of the capacitor banks and under load tap changers ultcs. A matter of time so far all data assumed to be at the analysis time. Volt var optimization with energy savings for distribution system using intelligent control. Jackson explains that 4 ami includes advanced meters that will support greater customer energy usage.
Optimal inverter var control in distribution systems with. Modern optimization models and techniques for electric power systems operation andy sun and dzung t. Voltvar optimization vvo in utility distribution systems require range anytime. Ivvo stands for integrated voltvar optimization electricity. Voltvar optimization vvo via power factor correction was preferred strongly to cvr via active voltage regulation. Voltage and volt ampere reactive var optimization vvo is a smart gridenabled utility application. Vvo controller rules based acquired and implemented in ameren missouri. By driving forward a systemwide voltage optimization. Volt var optimization vvo and conservation voltage reduction cvr provide an opportunity to improve the power system performance in terms of efficiency and usability. A better way is to introduce the time dimension into the. Utility investment in communications and smart grid investment links all facets from endcustomer to generation, transmission. Utilizing the results from aics cvr pilot project, aic is utilizing the following process for designing its voltvar implementation. Simulating such a system gives crucial information such as the switching of capacitors and optimal tap positions of voltage. Butterfield national renewable energy laboratory r.
Yinger southern california edison to be presented at the world renewable energy congress viii denver, colorado. Provide volt var optimization through capacitor bank control when there is a kvar limit excursion on an analog measurement. 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. Ameren illinois considering model based vvo controller acquisition. Modern optimization models and techniques for electric power. Voltvar optimization improves the efficiency of the. We illustrate that var and cvar minimization problems for derivatives portfolios are. Coastal flooding, wildfires, extreme heat, hurricanes and recently in ontario ice storms have resulted in millions of people losing.
In distribution networks, there are slow controlling devices and fast controlling devices for voltvar regulation. This conference will present the economic case for voltvar optimization. Dommel, life fellow, ieee abstractthe possibility of leveraging the data provided by smart meters to understand the load characteristics is studied in this paper. 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. 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. Provide voltvar optimization through capacitor bank control when there is a kvar limit excursion on an analog measurement. 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. Electrical and computer engineering the objective of this study is to control voltage at different points in a distribution grid to within a speci.
Adopting voltvar optimization technologies nemacast. A program to undervolt amd 14h family processors e350 at least under linux. Voltvar optimization summary voltvar optimization vvo is a tool to dynamically adjust the distribution system to reduce system losses and minimize demand. I uses observations at the correct time i calculates analysis at the correct time i implicitly generates. This inefficiency leads to wasted electricity, unnecessary generation, squandered money, and harmful co2 in the atmosphere. Integrated voltvar regulationoptimization before diving into integrated voltvar optimization, it is important to understand the concept of var. 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. 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. The difference is found in what we know about the status of the power lines. Vvo function is designed to optimize the voltage and reactive power flow in. Conservation and optimization via volt var control tuesday, october 28, 2014 8. Integrated voltvar regulationoptimization before diving into integrated volt var optimization, it is important to understand the concept of var. He provides customer and industry linkage to beckwith electrics solutions, as well as contributing expertise for application engineering, training and product development.
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. Case study powerstream deploys opus one solutions dynamic voltvar optimization scheme to improve feeder reliability and minimize losses. Download pdf 28 kb the department of energys office of electricity oe recognizes that our nations sustained economic prosperity, quality of life. 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.
Voltvar management solutions for smart grid distribution. 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. Modelfree voltvar control based on measurement data analytics. How is integrated voltvar optimization electricity abbreviated.
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. Integrated voltvar regulationoptimization americans for a. Ivvo is defined as integrated voltvar optimization electricity somewhat frequently. I reduce errors by assimilating more frequently, but that has its own problems. Vvo refers to the optimization of reactive power and voltage regulation resources on the. Simple paybacks for these projects were generally in the 0 2 year range. A comprehensive methodology for voltvar optimization in. Powerstream, a communityowned energy company providing power and related services to more than 375,000 customers residing or owning businesses in. Session moderators jared green, epri joe paladino, doe. A framework for voltvar optimization in distribution systems.
This paper develops a model free voltvar optimization vvo algorithm via multiagent deep. The results obtained on ieee 30bus system showed that the hybrid method based on psoipm gives the best results compared to the other methods. Wayne hartmann is vp, protection and smart grid solutions for beckwith electric. Industry experience with voltvar optimization shows 1. System optimization voltvar optimization optimal power. 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. 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. Deep reinforcement learning based voltvar optimization in.
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. Voltvar optimization vvo function is a key element in advanced distribution management system dms functionality. Voltvar management market by component, application 2024. Global climate change is causing extreme weather events to occur more frequently. Tricia breeger of mitsubishi electric power products discusses voltvar technologies. 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. After few days of initial exploration, the proposed vvc is capable to give satisfactory results near to that of a modelbased optimization technique. Translation find a translation for voltvar optimization in other languages. Omaha, nb implementing voltvar optimization october 12. It has been demonstrated that the proposed method can be easily.
I all data in 6hour window assumed to occur at the middle of that window. Cyme power engineering software and solutions voltvar. Volt var optimization vvo function is a key element in advanced distribution management system dms functionality. 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. Minimizing cvar and var for a portfolio of derivatives. The objective of the vvo techniques is to optimize some metric of the system performance such as active power loss or voltage. Methodology for volt var optimization on a substation basis may th, 2011 version 1. Before diving into integrated voltvar optimization, it is important to. Con edison, national grid, duke energy, and morristown utility systems will provide case studies of their vvo programs. The voltvar optimization vvo analysis module simulates a voltvar management application.
From the information provided so far, the extent of the voltage drop between the. A framework for voltvar optimization in distribution systems hamed ahmadi, student member, ieee, jose r. Var stands for voltamps reactive and is the measuring unit for reactive power. Responds to onoff commands from the controller and reports status information, power system measurements, and. Compared to var, cvar is attractive since it is a coherent risk measure. Varflow temperature time of day season centralized automation.
Value at risk var and conditional value at risk cvar are frequently used as risk measures in risk management. Voltvar optimization vvo in utility distribution systems 1. Volt var optimization technology works as expected testing validates that 24% energy and demand reduction is achievable. Voltvar optimization controller is a device controlled and managed by dscada and it interacts with rtus and field devices. Cvr schemes were primarily scada actuated but were initiated by human operators. Pdf a smart voltvar optimization engine for energy distribution. Etap offers several powerful analysis software modules for systems optimization including voltvar optimization, optimal power flow, switching optimization, and more. Voltvar optimization improves the efficiency of the distribution grid saving money, electricity and reducing emissions the distribution grid is inefficient. Now, with smart grid technology, we can use a more intelligent approach and put into place volt var optimization, or vvo for short. 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. This paper develops a model free volt var optimization vvo algorithm via multiagent deep. 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.
Ymca athletes village microgrid for the 2015 toronto panparapan american games challenge the electricity grid in north america is being challenged like never before. Application of narrow band power line communication in. Var support from distributed wind energy resources preprint july 2004 nrelcp50036210 h. Voltvar optimization capacitor banks control the level of voltage supplied by minimizing voltage drops and absorbing energy from a line spike. Engineers and crews can view status of substation, feeders, capacitors and voltage devices, set control constraints, and operate switches manually. Realtime vvo requires realtime data such as voltage, current, active power and reactive power, to be captured from smart meters at customer site 1. Utilities can know beforehand how much their network can be improved.
325 1482 702 173 1339 1362 1280 354 847 1314 899 1539 552 1363 963 294 958 705 428 1330 1116 1419 406 597 678 431 1271 1127 578 786 1104 962 771 1494 620 654