A Three Decades of Marvellous Significant Review of Power Quality Events Regarding Detection & Classification

Mian Khuram Ahsan, Tianhong Pan, Zhengming Li
<span title="">2018</span> <i title="Scientific Research Publishing, Inc,"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/7yc7cdx7wjbrtlq74orw6c364a" style="color: black;">Journal of Power and Energy Engineering</a> </i> &nbsp;
Around the globe, the necessity of green supply with a dedicated standard quality thrust of consumers is increasing day by day. The advancement in technology urges the electrical power system to deliver a high-quality rated undistorted sinusoidal current, the voltage at a constant desired standard frequency to its consumers. The present paper reveals a complete and inclusive study of power quality events, such as automatic classification and signal processing via creative techniques and the
more &raquo; ... es effect on the detection and classification of power quality disturbances. It's planned to make a possible list for quick reference to obtain an extensive variety on the condition & status of available research for detection and classification for young engineers, designers and researchers who enter in the power quality field. The current extensive study is supported by a critical review of more than 200 publications on detection and classification techniques of power quality disturbances. nents such as computers, protection relay equipment and PLCs which are the biggest sources of power consumption [1]. Power quality is discussed in researchers/scientist on a daily basis worldwide since 1970 and it's one of the hot topic in all decades due to upcoming new trends and technologies [2] [3]. Consumers are expecting un-interrupted and high-quality power for their household and business equipment. The integration of resources of renewable energy in distribution grids according to user's expectation is the central focusing area of smart grid and a great challenge for all engineers & scientists [4]. Sometimes huge and small blackouts happen due to the interdependencies of associated dynamical propagation and its sub-networks because of different power quality disturbances [5]. To prevent such issues consumers are investing huge investment in personal, uninterrupted power supplies though they are very costly; it shows the importance of commercial energy distribution regarding power quality [6]. Problems such as swell/sag, harmonics, flickers, voltage regulation, deviation in phase, unbalancing loads and frequency errors are exaggerated in the distribution system due to the increase of electronically switched and nonlinear devices which well equipped the smart transmission systems and renewable energy integration. In the last two decades, the international scientific community studied, proposed and developed several solid-state power electronic devices to improve power quality [7] [8]. The induction of these devices in the system attracts the attention of engineers towards the complexity of networks for planning and operation of electrical supply with the quality of power [9]. In electrical systems during the operating conditions such as network contingencies, load disturbances, renewable energy resources which output the power sinusoids and harmonics are observed at low-frequency signals while across the bus/node when electronically controlled capacitors are switch, and the transient oscillation is glimpsed in power network [10] [11] [12] [13] [14] . The consumer's bears ancillary services costs due to these unwanted events such as load curtailment loss, reactive power cost, disturbance removing cost and re-dispatch cost. Therefore PQ events need to maintain standards of the power supply and to be monitored and mitigated in operating conditions. The Large power system is complex during operations for monitoring and analysis to measure all PQ events. Therefore under sudden changes of operating conditions an elegant tactics & tools are requisite for detection and its classification also to understand smartly the utilities, regulators, and consumers operating requirements [15] . Power quality issues can be created from any reason that can be minor to major but in all cases it affects the system with prodigious losses. In the next generation of power grid networks the premier task is to localize the proximity of problem regardless of its nature, secondly how to respond reliably and securely to the detected regions which has been impacted by faults. Power quality becomes more challenging and complex in the presence of dual and multi disturbances. There are many challenges to focus specially to achieve integration of multi-platforms, diagnostic modular designs to achieve flexibility, precision, fast & accurate results with reliability. It is M. K. Ahsan et al.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.4236/jpee.2018.68001">doi:10.4236/jpee.2018.68001</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/5a7ubwe75jae3ouaylucyq5zca">fatcat:5a7ubwe75jae3ouaylucyq5zca</a> </span>
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