Advanced Tools for Modelling and Analysis of Evolving Power and Energy Systems

随着可再生能源和电力电子技术的日益广泛使用、直流技术的进一步适应、智能电网的发展以及与通信系统和传感器的集成，现代电能系统的复杂性正在迅速增加。计算机模拟使当前和未来电网的安全设计和优化运行成为可能。世界各地的控制中心和研究机构的数千名工程师正在全职开发模型和进行研究。由于模拟被多次使用（通常是迭代的），模型的准确性和效率以及分析系统动态的工具的能力（即提取稳定性分析的信息）非常重要。即使是模拟速度和扩展功能的微小增加也可能导致全球范围内的显著节省，并防止潜在的停电和故障。 加拿大在开发最先进的解决办法和计算机化工具方面一直处于领先地位，这些办法和工具使各种规模的电力系统的设计和运行成为可能。电磁暂态程序（称为EMT或EMTP），例如ATP、Microtran、EMTP-RV、PSCAD、RTDS、RT-LAB、Matlab的Simscape Electrical和Powertech Labs暂态稳定工具DSATools等，所有这些都是由加拿大研究人员发起和/或开发的，现在在全世界范围内作为行业标准工具被广泛使用。 这项研究延续了UBC在推进电网建模、仿真和分析方面的长期传统。我们正在开发具有旋转电机和开关转换器的设备的计算效率最高的模型。我们的目标是使下一代的仿真工具，需要解决在电力系统中的暂态现象的范围越来越大，电力电子的存在。未来的仿真工具将能够非常有效地分析系统，识别任何潜在或现有的问题，并协助提供解决方案，同时具有可扩展性和可负担性。我们的研究设想接口/集成/混合EMTP和状态变量型解决方案以及动态和静态相量型解决方案，其中每种方法都可以应用于子系统级别，从而最大限度地利用每个引擎，同时获得系统每个部分所需的精度和分辨率。我们专注于建立所谓的基于阻抗的模型，该模型可以基于现有的EMT仿真引擎进行数值构建，随后用于在广泛的频率范围内为系统级分析提供新的信息，包括超同步和次同步谐振以及与谐振器相关的相互作用。新模型、解决方案及其在模拟器中的实现将提供给加拿大和全球的研究人员和工程师，从而实现可再生能源的更广泛整合和更好的能源网络设计。

The complexity of modern electrical energy systems is fast increasing with the growing use of renewable sources and power electronics, further adaptation of DC technologies, evolving smart energy grids and integration with communication systems and sensors. Computer simulations enable the safe design and optimal operation of present and future electric grids. Thousands of engineers in control centers and research facilities around the world are working full-time developing models and conducting studies. Since the simulations are used many times (often iteratively), the accuracy and efficiency of models and the capability of tools to analyze the system dynamics (i.e. extract information for analysis of stability) are very important. Even a fractional increase in simulation speed and expanded capabilities may result in significant savings worldwide and prevent potential blackouts and failures. Canada has been a leader in developing state-of-the-art solution approaches and computerized tools that enable the design and operation of electric power systems of various scales. The electromagnetic transient programs (known as EMT or EMTP) e.g. ATP, Microtran, EMTP-RV, PSCAD, RTDS, RT-LAB, the Matlab's Simscape Electrical, and Powertech Labs transient stability tools DSATools, etc., all have been originated and/or developed by Canadian researches and are now overwhelmingly used throughout the world as industry-standard tools. The proposed research continues the UBC's long-time tradition in advancing the modelling, simulation, and analysis of power grids. We are developing the most computationally efficient models of devices with rotating electrical machines and switching converters. The goal is to enable the next generation of simulation tools needed to address the widening range of transient phenomena in power systems with an increasing presence of power electronics. The future simulation tools will have the capabilities to very effectively analyze the system, identify any potential or existing problems and assist in providing a solution, while being scalable and affordable. Our research envisions interface/integrate/mix EMTP- and state-variable-type solutions as well as dynamic and static phasor-type solutions, where each approach may be applied on a subsystem level making the best use of each engine while obtaining the desired accuracy and resolution needed for each part of the system. We are focusing on establishing the so-called impedance-based models that can be numerically constructed based on existing EMT simulation engine and subsequently used to provide new information for system-level analysis in a wide range of frequencies covering supper- and sub-synchronous resonances and controller-related interactions. The new models, solution approaches, and their realization in simulators will become available to researchers and engineers in Canada and worldwide, enabling wider integration of renewable sources and the design of a better energy grid.