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首页> 外文会议>Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion >The sub-transient, transient, and steady-state models for three-phase inverter based distributed generators for the purpose of real-time short-circuit analysis
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The sub-transient, transient, and steady-state models for three-phase inverter based distributed generators for the purpose of real-time short-circuit analysis

机译：基于三相逆变器的分布式发电机的子瞬态，瞬态和稳态模型，用于实时短路分析

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In this paper the sub-transient, transient, and steady-state short-circuit models for inverter based distributed generators (IBDGs) are proposed. Until the last two decades the only active elements connected to the distribution systems were synchronous and induction machines. The dynamic behaviour of these machines has been approximated by three steady-state time periods: sub-transient, transient, and steady-state, in order to have real-time short-circuit calculations. In recent years deployment of IBDGs is constantly increasing. Currently, the IBDGs do not have generally accepted short-circuit models. Therefore, there is an urgent need for development of these models, in order to have accurate short-circuit calculations of modern distribution systems. The IBDG models proposed in this paper are based on Fault Ride Through requirements of the currently existing Distribution Codes. The proposed models are divided on sub-transient, transient, and steady-state models, in order to simulate their dynamic behaviour and to comply with the models of traditional generators. To validate the proposed models, they were integrated in the recently developed real-time short-circuit calculation procedure for active distribution systems. The IEEE 13 test feeder and several large-scale distribution systems consisted of as many as 5200 three-phase busses and 50 IBDGs were used as the cases studies. The simulation results showed that the proposed models provide desirable results for real-time short-circuit calculations in active distribution systems.
机译：本文提出了基于逆变器的分布式发电机（IBDG）的子瞬态，瞬态和稳态短路模型。直到最后二十年，连接到配电系统的唯一有源元件是同步电机和感应电机。这些机器的动态行为已通过三个稳态时间周期进行了近似：次瞬态，瞬态和稳态，以便进行实时短路计算。近年来，IBDG的部署在不断增加。当前，IBDG还没有普遍接受的短路模型。因此，迫切需要开发这些模型，以便对现代配电系统进行准确的短路计算。本文中提出的IBDG模型是基于当前现有分发规则的“故障穿越能力”要求。为了模拟它们的动态行为并符合传统发电机的模型，提出的模型分为子瞬态模型，瞬态模型和稳态模型。为了验证所提出的模型，将它们集成到了最近开发的用于有源配电系统的实时短路计算程序中。作为案例研究，使用了IEEE 13测试馈线和几个大型配电系统，该系统由多达5200个三相母线和50个IBDG组成。仿真结果表明，所提出的模型为有源配电系统中的实时短路计算提供了理想的结果。

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