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Time vs. Phasor Domain Simulation
EMTDC is a class of simulation tool, which differs from phasor domain solution engines, such as load-flow and transient stability programs. These tools utilize steady-state equations to represent electrical circuits, but will actually solve the differential equations of machine mechanical dynamics.
EMTDC results are solved as instantaneous values in time, yet can be converted into phasor magnitudes and angles via built-in transducer and measurement functions in PSCAD - similar to the way real system measurements are performed.
Since load-flow and stability programs work with steady-state equations to represent the power system, they can output only fundamental frequency magnitude and phase information. EMTDC can duplicate the response of the power system at all frequencies, bounded only by the user-selected time step.
V5 Features
PRSIM™ (Power System Importer)
PSCAD Initializer
Automation: Embedded Python Scripting With Recording
Modified, Augmented Nodal Analysis (MANA) in EMTDC
KLU Sparsity Algorithm in EMTDC
The first lines of code were written in 1975, at Manitoba Hydro by Dennis Woodford (Technical Director of the Centre 1986 - 2001), out of a need for a simulation tool that was sufficiently powerful and flexible to study the Nelson River HVDC power system in Manitoba, Canada.
Following the success of this study, development of the program continued through the next two decades. Over this time, a full spectrum of professionally developed models was eventually accumulated (as needed for various simulation projects) - in addition to various enhancements to the actual solution engine itself.
我们在以下领域为客户提供了一系列的解决方案：
● 负载流、短路和动态研究
● 系统规划研究
● 运筹规划研究（短期规划）
● 转让限制
● 系统影响研究（HVDC，风能，太阳能）
● 基于FACTs的解决方案
● 次同步谐振（SSR）
● 电磁暂态研究
● 绝缘配合研究（雷电、开关SOV，TOV）
● 断路器TRV
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