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arXiv 1209.6579nlin.CDmath.OC
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同步的代价:电网中相位同步引起的电阻损耗

The Price of Synchrony: Resistive Losses due to Phase Synchronization in Power Networks

Bassam Bamieh, Dennice F. Gayme

摘要:

我们调查的总电阻性损失发生在返回相同的发电机的电力网络的同步状态下的暂态稳定事件或在持续的随机干扰的存在下保持这种状态。我们制定了这个成本的输入输出$H^2$规范的线性动态系统的分布干扰。我们推导出一个表达式的总电阻性损失的规模与网络的大小以及发电机和电力线的属性,但独立的网络拓扑结构。我们称之为同步代价的这种拓扑不变缩放与典型的电力系统稳定性概念(如收敛速率或转子角稳定性的吸引区域)形成对比。我们的研究结果表明,高度连接的电力网络,而期望更高的相位同步,不提供的总电阻性功率损耗方面的优势,需要实现这种同步。此外,如果功率流是用于实现高度分布式发电网络中的同步的机制,则成本随着发电机的数量无限地增加。

英文摘要:

We investigate the total resistive losses incurred in returning a power network of identical generators to a synchronous state following a transient stability event or in maintaining this state in the presence of persistent stochastic disturbances. We formulate this cost as the input-output $H^2$ norm of a linear dynamical system with distributed disturbances. We derive an expression for the total resistive losses that scales with the size of the network as well as properties of the generators and power lines, but is independent of the network topology. This topologically invariant scaling of what we term the price of synchrony is in contrast to typical power system stability notions like rate of convergence or the region of attraction for rotor-angle stability. Our result indicates that highly connected power networks, whilst desirable for higher phase synchrony, do not offer an advantage in terms of the total resistive power losses needed to achieve this synchrony. Furthermore, if power flow is the mechanism used to achieve synchrony in highly-distributed-generation networks, the cost increases unboundedly with the number of generators.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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