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首页> 外文期刊>Electric power systems research >Voltage control of critical and non-critical loads in distribution networks with electric spring
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Voltage control of critical and non-critical loads in distribution networks with electric spring

机译：带电弹簧的配电网中关键和非关键负载的电压控制

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The electric spring (ES) is a novel voltage compensator which is series with a non-critical load to regulate the critical load voltage. The voltage fluctuation is caused by wind speed fluctuation, load fluctuation, and generator tripping. In busbar voltage drop situation, the electric spring decreases the voltage of non-critical load in order to support the critical load (busbar) voltage. All the non-critical loads couldn't work under any voltage (for example 0.5 pu). In this paper, a control strategy founded on active and reactive power compensations has been proposed for voltage control of critical loads on a reference value while it controls the voltage of non-critical loads between an acceptable boundary. The proposed controller has two voltage control loops which adjusts active and reactive power of the electric spring. The experimental results from the case study show that the ES with the proposed control strategy can effectively mitigate double voltage control of both critical and non-critical loads while dynamically managing the demand response of the system at the same time.
机译：电动弹簧（ES）是一种新颖的电压补偿器，与非关键负载串联以调节关键负载电压。电压波动是由风速波动，负载波动和发电机跳闸引起的。在母线电压下降的情况下，电弹簧会降低非关键负载的电压，以支持关键负载（母线）电压。所有非关键负载都无法在任何电压（例如0.5 pu）下工作。在本文中，提出了一种基于有功和无功功率补偿的控制策略，用于将临界负载的电压控制在参考值上，同时控制非临界负载的电压在可接受的范围内。提出的控制器具有两个电压控制回路，可调节电弹簧的有功功率和无功功率。案例研究的实验结果表明，采用所提出的控制策略的ES可以有效减轻关键负载和非关键负载的双电压控制，同时动态管理系统的需求响应。

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