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首页> 外文期刊>Przeglad Elektrotechniczny >Conservative Power Theory, Sequence Components and Accountability in Smart Grids
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Conservative Power Theory, Sequence Components and Accountability in Smart Grids

机译：智能电网中的保守功率理论，序列组成和责任制

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摘要

Smart grids offer a new challenging domain for power theories and compensation techniques, because they include a variety of intermittent power sources which can have dynamic impact on power flow, voltage regulation, and distribution losses. When operating in the islanded mode, smart micro-grids can also exhibit considerable variation of amplitude and frequency of the voltage supplied to the loads, thus affecting power quality and network stability. Due to the limited power capability of smart micro-grids, voltage distortion can also get worse, affecting measurement accuracy and possibly causing tripping of protections. In such a context, a reconsideration of power theories is required, since they form the basis for supply and load characterization and accountability. A revision of control techniques for harmonic and reactive compensators is also required, because they operate in a strongly interconnected environment and must perform cooperatively to face system dynamics, ensure power quality and limit distribution losses. This paper shows that the Conservative Power Theory (CPT) provides a suitable background to cope with smart grids characterization needs, and a platform for the development of cooperative control techniques for distributed switching power processors and static reactive compensators.
机译：智能电网为功率理论和补偿技术提供了一个新的挑战领域，因为它们包括各种间歇性电源，这些动态电源会对功率流，电压调节和配电损耗产生动态影响。当以孤岛模式运行时，智能微电网还可能表现出向负载提供的电压的幅度和频率的巨大变化，从而影响电源质量和网络稳定性。由于智能微电网的功率能力有限，电压失真也会变得更糟，影响测量精度并可能导致保护跳闸。在这种情况下，需要对功率理论进行重新考虑，因为它们构成了供电和负载特性描述以及问责制的基础。还需要对谐波和无功补偿器的控制技术进行修订，因为它们在紧密互连的环境中运行，并且必须协同工作以应对系统动态变化，确保电能质量并限制配电损耗。本文表明，保守功率理论（CPT）为满足智能电网的表征需求提供了合适的背景，并且为开发用于分布式开关功率处理器和静态无功补偿器的协作控制技术提供了平台。

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