Comparison of Non-real-time and Real-time Simulators with Relays-in-the-Loop for Adaptive Overcurrent Protection

Feb 24, 20171 like330 views

By Emilio C. Piesciorovsky, Kansas State College of Engineering and Noel N. Schulz, Tennessee tech Learn more at www.opal-rt.com

This presentation discusses real-time optimization schemes for distribution systems with high PV integration. It proposes using PV inverter reactive power control to minimize voltage deviations and power losses. A day-ahead optimization determines inverter VARs, OLTC taps, and capacitor states. An online control adjusts inverter VARs in real-time to compensate for forecast errors. Case studies show the approach reduces objective function values. Distributed control algorithms using multiple embedded controllers communicating over a network are also investigated through real-time simulation.

2017 Atlanta Regional User Seminar - Residential Battery Storage Systems. Des...OPAL-RT TECHNOLOGIES

Sonnen is a leading manufacturer of residential battery storage systems in Europe and the US. They use Opal-RT hardware-in-the-loop systems to test the dynamic operation of bi-directional inverters, optimize battery charging and discharging algorithms using real weather and demand data, validate and test new software releases, and develop algorithms to monitor battery health by measuring impedance. The Opal-RT systems allow accelerated testing without external hardware.

2017 Atlanta Regional User Seminar IntroductionOPAL-RT TECHNOLOGIES

The document summarizes the agenda for OPAL-RT's Regional User Seminar in Atlanta, GA on February 15th, 2017. It includes panels on real-time power system simulation, partner technology overviews, hardware-in-the-loop applications, and real-time microgrid demos. It also provides updates on OPAL-RT's expansion in Latin America, research collaborations in the US, involvement in an aircraft technology project in Canada, and new product features and releases.

2017 Atlanta Regional User Seminar - Conclusion OPAL-RT TECHNOLOGIES

OPAL-RT held their Regional User Seminar in Atlanta, GA on February 15th, 2017. Presentations from the seminar will be made available on their FTP site in the coming days. Upcoming events in both the US and Canada were also announced, including the 4th International Grid Simulator Testing Workshop in April 2017, CPES Annual Conference in Virginia in April 2017, and OPAL-RT's User Group Conference #RT17 in Montreal, Canada from September 5-8, 2017. Attendees were asked to complete a survey about the seminar before leaving.

2017 Atlanta Regional User Seminar - Using OPAL-RT Real-Time Simulation and H...OPAL-RT TECHNOLOGIES

This document summarizes a presentation given by Shuhui Li at an Opal-RT user seminar on February 15, 2017 in Atlanta, GA. The presentation covered Li's research using Opal-RT real-time simulation and hardware-in-the-loop systems for power and energy systems at the University of Alabama. Specific topics included solar energy conversion and grid integration, electric vehicle charging stations, microgrid control, interior permanent magnet motor control for EVs, and an NSF-funded research center on efficient vehicles. Real-time simulation and hardware experiments were shown for various applications including solar PV systems, energy storage, electric vehicle charging, and inverter control for grid-connected microgrids and permanent magnet synchronous motors.

2017 Atlanta Regional User Seminar - Virtualizing Industrial Control Systems ...OPAL-RT TECHNOLOGIES

This document discusses virtualizing industrial control systems to create testbeds for cybersecurity research. It describes creating a high-fidelity virtual copy of a physical SCADA system and comparing results between the physical and virtual testbeds under normal and attack conditions. As an example, it details virtualizing a gas pipeline testbed that includes sensors, actuators, a programmable logic controller and human-machine interface. It also discusses expanding the virtual gas pipeline testbed and virtualizing additional systems like a water storage tank and power system using the same approach.

2017 Atlanta Regional User Seminar - Real-Time Microgrid DemosOPAL-RT TECHNOLOGIES

This document discusses challenges in simulating distributed energy resources and microgrids in real-time including bidirectional power flow, integration of new technologies, controls, islanding operations, and communication networks. It also describes a real-time hardware-in-the-loop simulation platform that models a microgrid test system containing generators, loads, energy storage and PV to evaluate commercial microgrid controllers under different operating conditions and grid connection scenarios.

RT15 Berkeley | HYPERSIM - OPAL-RTOPAL-RT TECHNOLOGIES

1. HYPERSIM is a real-time power system simulator developed through a collaboration between IREQ, RTE, China State Grid, and OPAL-RT to model power systems and power electronics from nanoseconds to milliseconds. 2. It is designed for power system engineers to simulate large EMT models in parallel on supercomputers, and integrate with other simulators like ePHASORsim and eMEGAsim. 3. HYPERSIM includes modeling, visualization, automation, and reporting tools and can interface with hardware in the loop controllers for applications like large scale wind power integration studies.

RT15 Berkeley | ePHASORsim: Real-time transient stability simulation tool - O...OPAL-RT TECHNOLOGIES

ePHASORsim is a real-time transient stability simulation tool that can simulate large power systems with thousands of nodes using a phasor domain solution with time-steps in the range of milliseconds. It can run simulations both offline and in real-time on RT-LAB enabled simulators. It has a variety of features including modeling of transmission and distribution systems, flexible data input formats, on-the-fly parameter changes, measurements and monitoring, parallel processing, and support for communication protocols and functional mock-up interface. It has been used for applications such as operator training, wide area monitoring, state estimation, and automatic control.

OPAL-RT | Setup and Performance of a Combined Hardware-in-loop and Software-i...OPAL-RT TECHNOLOGIES

1. The document describes a combined hardware-in-loop (HIL) and software-in-loop (SIL) test for an MMC-HVDC control and protection system using a real-time simulator. 2. The test setup involves using FPGAs to simulate the low-level valve controller in the pole controller hardware, while simulating the rest of the grid and MMC station. 3. Test results demonstrated the start and stop sequence of the MMC, its real power step response, and capacitor voltage balancing worked as specified.

OPAL-RT and RTDS Technologies Co-SimulationOPAL-RT TECHNOLOGIES

RT15 Berkeley | OPAL-RT Solutions for Microgrid ApplicationsOPAL-RT TECHNOLOGIES

This document discusses OPAL-RT's solution for microgrid applications real-time simulation. It addresses challenges in simulating large power systems and ensuring accuracy of power electronics circuits. OPAL-RT's State Space Nodal method allows simulation of large power distribution systems across multiple processors without affecting system behavior. It also supports accurate power electronics simulation from medium-speed to high-speed controllers using various OPAL-RT tools. The document demonstrates these capabilities through a live demo of a microgrid system.

RT15 Berkeley | Real-time simulation as a prime tool for Cybersecurity - OPAL-RTOPAL-RT TECHNOLOGIES

1. Real-time simulation is useful for testing cybersecurity of modern power systems which rely on complex controls and protection systems. 2. Distribution systems are becoming as complex as transmission networks due to renewable energy, power electronics, and wide-area control systems, making security and performance reliant on testing of integrated controls. 3. Cybersecurity risks to power systems include threats like human error or hackers exploiting vulnerabilities in design flaws, system complexity, or testing limitations, which could have consequences like economic losses or equipment damage.

Webinar | HIL Testing of Electric TransportationOPAL-RT TECHNOLOGIES

RT15 Berkeley | Introduction to FPGA Power Electronic & Electric Machine real...OPAL-RT TECHNOLOGIES

FPGA simulation provides high-fidelity models for hardware-in-the-loop testing of electric machines and power electronics. It allows control algorithms to be tested with highly resolved non-ideal behaviors faster and at lower cost compared to physical testing. The document discusses how eFPGAsim utilizes FPGA technologies to simulate electric drive systems with models exported from finite element analysis, improving collaboration between design and control engineers.

Lab-Scale MMC Test BenchOPAL-RT TECHNOLOGIES

Webinar | HIL-based Wide-area Monitoring, Protection and Control R&D and TestingOPAL-RT TECHNOLOGIES

Rapid Control Prototyping SolutionsOPAL-RT TECHNOLOGIES

This document summarizes a presentation by Guillaume Boué of OPAL-RT on their rapid control prototyping solutions. The presentation covers an introduction to OPAL-RT, why rapid control prototyping is useful, OPAL-RT technology including their real-time computers and software interface, application highlights in areas like electric motor drives and modular multilevel converters, and a question and answer section. Key benefits outlined are finding errors early to reduce costs, easily building and tweaking control designs in real-time, and efficiently addressing power electronics, electric drive, and power systems challenges.

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Power Grid CybersecurityOPAL-RT TECHNOLOGIES

This document summarizes a webinar about cybersecurity for power grids. It introduces OPAL-RT, a company that provides real-time digital simulators for power systems. It then discusses how modern power grids are vulnerable to cyberattacks as they incorporate more intelligent technologies. The rest of the webinar focuses on how real-time simulation can be used to assess cybersecurity risks, research attack mitigation systems, and test compliance with new standards. Speakers from OPAL-RT and the Pacific Northwest National Laboratory discuss their work using real-time simulation for cybersecurity applications.

Detailed large-scale real-time HYPERSIM EMT simulation for transient stabilit...OPAL-RT TECHNOLOGIES

Towards cloud-based real-time HIL for wide-area special control and protection system testing Presented by: Jean Belanger, President and CTO of OPAL-RT TECHNOLOGIES Abstract: High penetration of inverter-based Distributed Energy Resources (DERs), widespread installation of FACTS and HVDC interconnection systems, and the decommissioning of thermal and nuclear plants are significantly reducing inertia in large-scale power systems. Fast power-electronics based control and protection schemes act to stabilize these systems, but they are sensitive to harmonics, transients, and system imbalances. It has been shown that simplified positive-sequence RMS models alone are insufficient for Transient Stability Assessment (TSA) of large-scale, low-inertia power grids. Therefore, utilities and regulators such as NERC, as well as professional associations such as CIGRE and IEEE, have begun investigating detailed EMT simulation to assess the transient stability of large-scale, low-inertia power grids that include power-electronic plant controllers. However, detailed EMT simulation of large-scale power grids for 20 to 30 second time-frames and hundreds of contingencies presents a number of computational and analytic challenges including excessive simulation time, large-scale grid data management and the unavailability of detailed and validated models of power-electronic plant controllers. Furthermore, these plant controllers, if they are provided by OEMs, are in the form of blackbox, pre-compiled DLLs, which are implemented for specific simulation tools, without any interoperability standard. This presentation will describe OPAL-RT solutions to achieve very large-scale, detailed grid EMT simulation in real-time for Hardware-in-the-Loop (HIL) / Software-in-the-Loop (SIL) control and protection testing, as well as quasi-real-time simulation for fast TSA evaluation of large-scale, low-inertia power systems. With these solutions, blackboxcontrol and protection systems can be implemented natively in the EMT simulation tool, HYPERSIM. PSCAD DLLs can also be co-simulated with HYPERSIM using a software interface based on the CIGRE model-interoperability guidelines. Such advances will accelerate connection studies and can be used to implement cloud-native tools to help operators assess system stability with hundreds of contingencies in 5-to 10-minute time-frames. This performance can be achieved for grids having several thousand busses with a 50-microsecond time-step using a few hundred processors. As HYPERSIM runs under Windows or LINUX, powerful cloud-based applications can be implemented for TSA and to test wide area control and protection systems using SIL or HIL with real control and protection software and hardware. Communication system emulators, such as eXata can also be used to analyze cyber-attacks and countermeasures as well as to evaluate the effect of communication failures and delays on system performance. Learn more at www.opal-rt.com

RT15 Berkeley | ARTEMiS-SSN Features for Micro-grid / Renewable Energy Sourc...OPAL-RT TECHNOLOGIES

This document discusses using real-time simulation technologies to test phasor measurement units (PMUs) and PMU applications. It outlines different solvers for real-time simulation, including real-time phasor simulation and real-time electromagnetic transient simulation. It also discusses communication protocols supported by real-time simulators like IEC 61850 and IEEE C37.118. Examples are provided of how real-time simulation has been used to test PMUs and develop wide-area monitoring, protection, and control systems.

RT15 Berkeley | Requirements on Power Amplifiers and HIL Real-Time Processors...OPAL-RT TECHNOLOGIES

The document discusses the requirements for power amplifiers and hardware-in-the-loop (HIL) real-time processors in implementing power HIL test benches. It notes that sampling rates need to be considered between the signal source and amplifier to accurately reproduce waveforms. Delays between components also impact phase shift and whether open or closed-loop systems will remain stable. The key factors that determine suitable setups are the signal frequency and processing delays of different hardware options like FPGAs and CPUs.

RT15 Berkeley | Real-Time Simulation of A Modular Multilevel Converter Based ...OPAL-RT TECHNOLOGIES

The document presents a real-time simulation of a modular multilevel converter (MMC) based hybrid energy storage system (HESS) using a battery and ultracapacitor (UC). The proposed MMC HESS offers advantages over traditional HESS topologies like higher efficiency, reliability, and comparable cost. It allows independent control of power from the battery and UC. Real-time simulation results validate the control framework and show the MMC output voltage and HESS smoothing of PV power fluctuations.

RT15 Berkeley | Power HIL Simulator (SimP) A prototype to develop a high band...OPAL-RT TECHNOLOGIES

This document discusses the development of a prototype high bandwidth power interface called a Power Simulator (SimP). The prototype aims to validate control algorithms and develop a stable interface between a power amplifier and real-time power system simulator. Key aspects of the prototype include a self-powered multi-level converter prototype, controller design, and interfacing the converter with a real-time simulator to test equipment performance and simulation models in a closed loop. The prototype will help inform the design of a full-scale Power Simulator for testing smart grid and renewable energy technologies.

RT15 Berkeley | NI / OPAL-RT Power Electronics HIL Teaching Laboratory - Nati...OPAL-RT TECHNOLOGIES

National Instruments is a global company that generated $1.24 billion in revenue in 2014. It employs over 7,000 people across almost 50 countries and serves over 35,000 companies annually. The document describes National Instruments' platform-based approach and a power electronics hardware-in-the-loop teaching laboratory. The laboratory uses National Instruments and OPAL-RT hardware and software to teach power electronics concepts through simulated experiments and exercises on converters, rectifiers and inverters. It provides a safe, low-cost way for students to learn practical skills in controlling and validating power electronics systems.

RT15 Berkeley | Multi-Terminal Power Hardware-in-the-Loop Test-Bench for Powe...OPAL-RT TECHNOLOGIES

The document discusses the development of a multi-terminal power hardware-in-the-loop test bench for power system stability analyses focused on distributed generation. Large increases in inverter-coupled generators like PV and wind are changing power networks, challenging assumptions of conventional stability assessment. The test bench aims to holistically simulate transmission and distribution networks to evaluate stability with more inverter-based generation. It will integrate real inverters using power hardware-in-the-loop simulations to verify their influence on stability at a higher level of detail than software models alone.

RT15 Berkeley | End-to-End Simulation Solution for Smart Grids Applications -...OPAL-RT TECHNOLOGIES

This document discusses end-to-end simulation solutions for smart grid applications from ETAP and Opal-RT. It provides an overview of ETAP software products including ETAP, ETAP Real-Time, and ETAP Grid which enable design, simulation, analysis, optimization and operation of power systems. It also describes how the companies can provide a complete solution by integrating ETAP software with Opal-RT's hardware-in-the-loop simulation to reduce risk and cost for grid automation projects. Examples of joint projects with clients are summarized.

RT15 Berkeley | Power Grid Simulation and Beyond at PNNLOPAL-RT TECHNOLOGIES

- Pacific Northwest National Laboratory develops advanced simulation tools and test facilities to help analyze and experiment with the power grid in a "virtual" environment. This includes tools for power flow analysis, state estimation, markets and other applications. - PNNL has various simulation platforms and tools, along with high performance computing capabilities and test facilities like lab homes and a control center, that can be used to test new technologies and analyze the power grid without disrupting real operations. - PNNL is working to develop large, open source test power flow cases and dynamic simulation cases to help benchmark solver tools and analyze the grid at high levels of geographic and time-series detail not previously possible.

RT15 Berkeley | Optimized Power Flow Control in Microgrids - Sandia LaboratoryOPAL-RT TECHNOLOGIES

The document summarizes research on designing nonlinear controllers for microgrid systems with stochastic sources and loads. Key points include: 1) A secure scalable microgrid testbed was developed to experimentally test Hamiltonian surface shaping power flow controllers (HSSPFC). 2) Models of single and multiple DC microgrids were formulated to develop optimal operating points using a dynamic optimizer. 3) An HSSPFC nonlinear distributed controller was designed and experimentally validated on a single DC microgrid testbed with variable sources and loads, demonstrating stable voltage regulation.

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