Variable converter Pulse Island test in integrated distributed generation of electrical energy system,International Transactions on Electrical Energy Systems

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Variable converter Pulse Island test in integrated distributed generation of electrical energy system
International Transactions on Electrical Energy Systems ( IF 1.9 ) Pub Date : 2021-05-19 , DOI: 10.1002/2050-7038.12920
K. Harinadha Reddy ₁

Affiliation

Many issues are arising during the operation like interruption, disorder, and uncertainty in energy systems. One of the situations is islanding and that is required to protect humans and converter devices, those are working in interconnected electrical energy system environment. Variable converter pulse (VCP) method is proposed to identify the islanding detection (ISD) with rate of change of under/over voltage and rate of change of under/over frequency. Adaptive ISD algorithm is developed for proper tuning of VCP and used to identify ISD events in integrated utility grid. When a network is extended by means of new small-scale energy systems that is, distributed generation (DG) and operating with main grid network, the possibility of pre-existence of ISD data is also reconsidered for generating trip signal to isolate DG. In this paper, updating VCP-based control as function of change in voltage and frequency at point of common coupling (PCC) with island events and non-island events. Number of pulses and those are variable during island conditions and updated control vector to meet an objective of proposed ISD method. Especially multiple DG connected to PCC is also addressed in proposed method.

中文翻译：

分布式分布式发电系统变流器脉冲岛试验

能源系统运行中断、无序、不确定等诸多问题。其中一种情况是孤岛，需要保护人员和转换器设备，这些设备在互连的电能系统环境中工作。提出了可变转换器脉冲（VCP）方法来识别孤岛检测（ISD）与欠/过电压变化率和欠/过频率变化率。自适应 ISD 算法是为 VCP 的适当调整而开发的，用于识别综合公用电网中的 ISD 事件。当通过新的小规模能源系统，即分布式发电 (DG) 扩展网络并与主电网一起运行时，也会重新考虑 ISD 数据预先存在的可能性，以生成跳闸信号以隔离 DG。在本文中，更新基于 VCP 的控制作为公共耦合点 (PCC) 与孤岛事件和非孤岛事件的电压和频率变化的函数。脉冲数和脉冲数在孤岛条件和更新的控制向量期间是可变的，以满足提出的 ISD 方法的目标。特别是连接到 PCC 的多个 DG 也在所提出的方法中得到解决。

更新日期：2021-07-02

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