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Distributed generation support for voltage regulation: An adaptive approach

机译：分布式发电支持电压调节：一种自适应方法

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Distributed generation is expected to introduce additional issues in the operation of distribution networks. Among these, voltage variation is of particular concern and needs to be addressed concisely. Conventionally, voltage regulators are placed in transmission level, where they use reactive power control to alter voltage levels. This approach has been particularly effective due to the inductive nature of transmission networks. However, seen from that point of view, distribution networks are different. Hence, this paper introduces a new methodology to address the problem of DG units dispatch while maintaining voltage levels within desired levels. This approach, termed identification-based adaptive voltage regulation (I-BAVR), uses real-time identification of the Thevenin equivalent circuit of the system, giving the X/R ratio to identify the active and reactive power dispatch of the DG unit. The I-BAVR approach has been validated though several steady-state and dynamic simulation scenarios on a typical medium voltage network. These simulations show that by using an appropriate control strategy, DG can regulate the voltage to the specified levels by adapting the amounts of it active and reactive power to the systems operational changes.
机译：分布式发电有望在配电网络的运营中引入其他问题。其中，电压变化特别重要，需要简明扼要地解决。通常，将电压调节器放置在传输级别，在此它们使用无功功率控制来更改电压级别。由于传输网络的感应特性，这种方法特别有效。但是，从该角度来看，分销网络是不同的。因此，本文介绍了一种新方法，可解决DG机组调度问题，同时将电压水平保持在所需水平内。这种方法称为基于识别的自适应电压调节（I-BAVR），它使用系统戴维南等效电路的实时识别，给出X / R比值来识别DG单元的有功和无功功率分配。通过典型的中压网络上的几种稳态和动态仿真场景，已经验证了I-BAVR方法。这些模拟表明，通过使用适当的控制策略，DG可以通过使有功功率和无功功率的数量适应系统的运行变化，将电压调节到指定的水平。

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