Real-Time Digital Simulation and Control of Multi-Terminal Direct Current Grids

多端直流电网实时数字仿真与控制

• 批准号: RGPIN-2017-03733
• 负责人: Dinavahi, Venkata
• 金额: $ 2.7万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=686999
• 关键词: Real; Time; Digital; Simulation; Control

Real-time digital simulation mimics a physical system to reproduce the system's true behavior under simulated stresses applied under controlled conditions in a laboratory. In the context of electrical power grids, the applications of real-time digital simulation has grown from its initial function of testing prior to commissioning of control and protection systems (over 30 years ago) to encompass all manner of studies in the generation, transmission, distribution, and end use sectors of electrical energy. High voltage direct current (HVDC) technology is the conduit for bulk power transfer from large conventional generation to distant load centers, between interconnected asynchronous alternating current (AC) grids, and today it is also the key enabler for the massive influx of far-flung renewable generation into AC grids. Advances in power electronic topologies, control and protection schemes are leading the future growth of multi-terminal direct current (MTDC) grids worldwide.***This research program focuses on the fundamental conception and development of high-fidelity real-time digital models and control algorithms for the safe and reliable operation of MTDC grids. A new class of device-level electromagnetic transient models will be developed for MTDC grid components based on nonlinear system identification theory. These so-called Wiener-Hammerstein models will be accurate, efficient, and modular serving as building blocks for the construction of hierarchical large-scale real-time simulation of MTDC grids in the hardware-in-the-loop (HIL) configuration on field programmable gate array (FPGA) and System-on-Chip (SoC) architectures. Novel real-time parameter estimation, adaptive control algorithms, and protection strategies will be developed alongside for precise tracking of command inputs under both normal and abnormal DC grid conditions and fast fault isolation. ***This research will significantly advance the state-of-the-art in real-time HIL simulation for MTDC grid systems by providing unprecedented modeling detail and simulation accuracy. The accurate parallel models and computational algorithms will help reduce the development and testing costs for complex MTDC grids by allowing their analysis and optimization at early stages. A high-fidelity HIL simulation can offer significant benefits in terms of rapidly testing novel control strategies, power converter topologies, circuit breaker configurations, protection strategies for efficiency and performance optimization of the whole system. This research program will train 3 Ph.D. and 3 M.Sc. students, and there will also be ample opportunities for undergraduate research interns. The research results will be disseminated in leading journals and conferences. The main beneficiaries of this research will be manufacturers of real-time digital simulators in Canada, and Canadian electrical power utilities. **

实时数字仿真模仿物理系统，以在实验室受控条件下应用的模拟应力下重现系统的真实行为。在电力网格的背景下，实时数字模拟的应用已从其在调试和保护系统（30年前）之前的测试功能（超过30年前）中增强，以涵盖一代中的各种研究，传输，传输，分布和最终使用电能扇区。高压直流电流（HVDC）技术是从大型传统产生到遥远的负载中心的批量转移的管道可再生生成为AC网格。电力电子拓扑，控制和保护方案的进步正在领导全球多终端直流电流（MTDC）网格的未来增长。控制MTDC网格安全可靠操作的控制算法。基于非线性系统识别理论，将为MTDC网格组件开发一类新的设备级电磁瞬态模型。这些所谓的Wiener-Hammerstein模型将是准确，高效且模块化的，可作为构建MTDC网格的层次大规模实时模拟在野外构造中MTDC网格（HIL）配置的基础。可编程门阵列（FPGA）和片上系统体系结构。新型的实时参数估计，自适应控制算法和保护策略将在正常和异常直流网格条件和快速断层隔离下进行精确跟踪命令输入。 ***这项研究将通过提供前所未有的建模细节和仿真精度，在MTDC网格系统的实时HIL模拟中显着提高最新的HIL模拟。准确的并行模型和计算算法将通过允许在早期阶段进行分析和优化来帮助降低复杂MTDC网格的开发和测试成本。高保真的HIL模拟可以在快速测试新颖的控制策略，功率转换器拓扑，断路器配置，效率的保护策略和整个系统的性能优化方面提供重大好处。该研究计划将培训3博士学位。和3 m.sc.学生，也将有足够的本科研究实习生的机会。研究结果将在领先的期刊和会议中传播。这项研究的主要受益人将是加拿大实时数字模拟器和加拿大电力公用事业公司的制造商。 **