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不同季节对沙特阿拉伯网络互连区域之间电力传
输业务极限的评估。这些传输限制是对系统静态和动
态的限制。此外，灵敏度的传输限制可以确定关键设
备，比如发电机电压的可用性和输电阻塞管理的识别。
该信息有助于系统操作员根据资源的可用性将区域间
的传输调整到安全级别。
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.
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Print history:
• February 3, 2003 - Version 4.0.0, first printing
• March 21, 2003 - Version 4.0.1
• July 17, 2003 - Version 4.0.2, second printing
• April 30, 2004 - Version 4.1.0, third printing
• April, 2005 - Version 4.2.0, fourth printing
• February, 2010 - Version 4.2.1, fifth printing
• April, 2016 - Version 4.6.0
• May 9, 2018 – Version 4.6.0, updated to new MHI Branding Guidelines
One of the ways to understand the behaviour of complicated systems is to study the response when subjected to disturbances or parametric variations. Computer simulation is one way of producing these responses, which can be studied by observing time domain instantaneous values, time domain RMS values, or the frequency components of the response.
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