{"title":"Investment Decision-Making in Power Systems Employing Data Monitoring Technology","authors":"Qingfang Chen, Yifan Xu, Xinyi Lai, Shuyan Zhang, Yucui Wang, F. Wen","doi":"10.1109/ICPS52420.2021.9670273","DOIUrl":"https://doi.org/10.1109/ICPS52420.2021.9670273","url":null,"abstract":"A new round of power industry restructuring in China has invoked changes to the supply and demand relationship in the emerging electricity markets, bringing new challenges to power grid companies and increasing the risks of grid investment. In order to promote the level of lean management and investment of grid companies, an optimal investment decision-making model for power grid investment is presented with data monitoring technology employed in this paper, including the development of an indicator system, the trend prediction of indicators, the early warning and control of the indicators, and data warehouse as the data management tool. Finally, 7150 power grid projects of a provincial grid company in China are taken as an example to demonstrate the feasibility and effectiveness of the method proposed.","PeriodicalId":153735,"journal":{"name":"2021 9th IEEE International Conference on Power Systems (ICPS)","volume":"6 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116868673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Multi-objective Optimization based Automated Demand Response Model in Smart Distribution Grid","authors":"P. Sharma, A. Tiwari, N. Pindoriya","doi":"10.1109/ICPS52420.2021.9670155","DOIUrl":"https://doi.org/10.1109/ICPS52420.2021.9670155","url":null,"abstract":"Automated Demand Response (ADR) plays a vital role in the smart grid. This paper uses a two-layer hierarchical day ahead model where the utility and consumer are the key stakeholders. The Utility being at the top layer initiate an ADR event during peak load conditions. It sends a signal for managing the load to the consumers, equipped with smart meter and load control device technologies at their end. The main objective of the utility is to minimize electricity generation costs and give a particular part of the saving to the consumer for reducing their electricity consumption in the form of incentive. The customer wishes to maximize its benefit, while taking into consideration the dissatisfaction factor. A multi-objective problem is formulated to achieve a fair solution, and a pareto optimal set is achieved using the epsilon constraint method in GAMS. Also, the time-frame of activities involved between utility and consumer to carry out an ADR event is discussed in this paper. Simulation results over different consumer categories, i.e., industrial/ commercial, shows the feasibility of the model.","PeriodicalId":153735,"journal":{"name":"2021 9th IEEE International Conference on Power Systems (ICPS)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124512533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. S. Sharini Rithigaa, Kalavagunta Vamshi, A. Jawahar, K. Ramakrishnan
{"title":"Lyapunov Stability Analysis of Load Frequency Control Systems with Communication Network Induced Time-Delays and EV Aggregator","authors":"B. S. Sharini Rithigaa, Kalavagunta Vamshi, A. Jawahar, K. Ramakrishnan","doi":"10.1109/ICPS52420.2021.9670015","DOIUrl":"https://doi.org/10.1109/ICPS52420.2021.9670015","url":null,"abstract":"In this paper, an improved stability analysis is presented to compute the stable delay margin of a class of networked load frequency control systems involving communication channels and electric vehicle aggregator. In networked control systems with a centralized control framework, the use of communication links for information exchange among various sub-systems introduces inevitable time-delays in the feedback loop. These communication delays invariably exert a negative influence on the dynamic performance and stability of the system. If the network-induced time-delay escalates beyond a critical delay margin, called stable delay margin, the stability of the closed-loop system is lost. In recent times, for improved frequency compensation, a fleet of plug-in-electric vehicle units called aggregators are integrated as a distributed generation source in the load frequency control system. In such systems, in addition to improved frequency compensation, the integration of electric vehicles also paves way to enhancement in stability margin of the time-delayed system. In this paper, using Lyapunov-Krasovskii functional approach coupled with Wirtinger inequality, a new stability analysis is presented for determining delay-dependent stability of networked load frequency control systems integrated with electric vehicle aggregator. Furthermore, to impart a realistic operating condition, time-delays in the networked centralized control loop and electric vehicle aggregator loops are considered to be non-identical, and appropriate participation factors for effective load sharing are incorporated in the system framework. In the sequel, the analytical delay bounds are corroborated through extensive simulation studies.","PeriodicalId":153735,"journal":{"name":"2021 9th IEEE International Conference on Power Systems (ICPS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127233810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"P2P Energy Trading in Local Energy Market considering Network Fees and Losses","authors":"D. Sharma, Rohit Vijay, Parul Mathuria, R. Bhakar","doi":"10.1109/ICPS52420.2021.9670288","DOIUrl":"https://doi.org/10.1109/ICPS52420.2021.9670288","url":null,"abstract":"Integration of distributed energy resources (DERs) into distribution networks offer various benefits, including lower greenhouse gas (GHG) emissions, loss reduction, and grid reliance reduction. However, as the number of distributed energy resources grow, existing distribution networks face a variety of operational and market concerns, including voltage limit breaches, line congestion, visibility issues with DERs, and intermittent energy balances. It is difficult to construct a centralized market that serves several areas to handle such local concerns due to a variety of barriers. So, this work proposes a Peer-to-Peer (P2P) energy trading platform for participants with the capability of active participation in the market, where they can manage their demand and generation and participate as a buyer or seller considering network losses and network fees. For energy transfer, physical network or grid is considered, hence power losses cannot be ignored and grid-related costs are always present in the Peer-to-Peer trading. Grid-related cost consists of the network utilization fees, that is calculated using an electrical distance approach.","PeriodicalId":153735,"journal":{"name":"2021 9th IEEE International Conference on Power Systems (ICPS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121255487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparative Study of Various Communication Technologies for Secondary Controllers in DC Microgrid","authors":"A. Shyam, S. R. Sahoo, S. Anand, J. Guerrero","doi":"10.1109/ICPS52420.2021.9670303","DOIUrl":"https://doi.org/10.1109/ICPS52420.2021.9670303","url":null,"abstract":"With the increased emphasis on power generation from renewable sources, microgrids are considered as the best solution for distributed generation. Control of distributed sources in dc microgrid have been a topic of interest for both academia and industry. Reliable operation of secondary controller of a dc microgrid depends on a good communication network. However, the literature on dc microgrid does not give the methodology to select a particular communication technology from a wide variety of wired and wireless technologies. The selection of proper technology is based on many factors like the size of the microgrid, bandwidth, number of power electronic converters supported, latency, range, etc. A comparison of wired and wireless communication technologies based on these factors, and their suitability to use in dc microgrid is performed in this paper. Expressions are derived to calculate the maximum permissible number of devices supported and the network latency for each communication technology. The observations made in this paper are validated with case studies on low and medium power dc microgrids.","PeriodicalId":153735,"journal":{"name":"2021 9th IEEE International Conference on Power Systems (ICPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130368032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Gajjar, A. Kulkarni, G. Gajjar, S. Soman, R. Gajbhiye
{"title":"Testing of WAMS-based Supervised Zone-3 Distance Relay Protection Scheme using a Real-Time Digital Simulator","authors":"K. Gajjar, A. Kulkarni, G. Gajjar, S. Soman, R. Gajbhiye","doi":"10.1109/ICPS52420.2021.9670190","DOIUrl":"https://doi.org/10.1109/ICPS52420.2021.9670190","url":null,"abstract":"Power swings, load encroachment, and low voltage conditions can cause false tripping due to the Zone-3 backup protection feature of a distance relay. To avoid this, a distance relay can be supervised using the measurements from Phasor Measurement Units (PMUs) of a Wide Area Measurement System (WAMS). The algorithm and software for this purpose was developed. Through the monitoring of differential currents of the backed-up lines, the software generates Block and Trip signals which are communicated to the relay. This paper presents the results of testing of this scheme using a real-time digital simulator. Different fault scenarios in a four-machine ten bus system were simulated. The results indicate that the scheme is effective in preventing the false tripping of distance relays.","PeriodicalId":153735,"journal":{"name":"2021 9th IEEE International Conference on Power Systems (ICPS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130722525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Novel High Gain Switched Capacitor Topology for Fuel Cell Vehicles with Wide Voltage Gain","authors":"Ishita Biswas, D. Kastha, P. Bajpai","doi":"10.1109/ICPS52420.2021.9670119","DOIUrl":"https://doi.org/10.1109/ICPS52420.2021.9670119","url":null,"abstract":"In this paper, a non isolated high gain dc-dc converter topology is proposed for the fuel cell vehicle application. The proposed switch capacitor based step up topology with common ground structure provides high voltage gain for a wide range of input voltage with lower voltage stress on the capacitors and power devices. The two phase interleaved structure at the input terminal reduces the input current ripple of the fuel cell. The input inductor currents are self balanced and operates at half of the total input current. In addition, the proposed converter have the ability to operate over a wide duty ratio range without compromising the system performance. The proposed converter can integrate low voltage FC stack (35–65 V) to 400V dc-link, suited for fuel cell vehicle application.","PeriodicalId":153735,"journal":{"name":"2021 9th IEEE International Conference on Power Systems (ICPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128890534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Detailed Investigation of Mode Information based System Inertia Estimation using Synchrophasor Measurements","authors":"Adithya Surya Tarun Papa, K. Gayathri, M. K. Jena","doi":"10.1109/ICPS52420.2021.9670429","DOIUrl":"https://doi.org/10.1109/ICPS52420.2021.9670429","url":null,"abstract":"This paper has carried out a detailed investigation on oscillatory mode information-based system inertia estimation techniques. In the first step, the critical modes of oscillation are extracted from the post-disturbance frequency deviation signal which is obtained from the phasor measurement units (PMUs). In this process, two popular methods for parameter estimation such as Estimation of Signal Parameter via Rotational Invariance Techniques (ESPRIT) and Matrix Pencil technique are deployed to extract the mode information. The investigation reveals the superiority of the Matrix Pencil method over the ESPRIT method for inertia estimation application. Once the mode information is available, an equivalent swing equation is used to estimate the inertia at any desired bus of the power system. The analysis is carried out on both Kundur's two-area system and the IEEE-39 bus system. The results obtained demonstrate the superiority of Matrix Pencil based method over ESPRIT method for inertia estimation application.","PeriodicalId":153735,"journal":{"name":"2021 9th IEEE International Conference on Power Systems (ICPS)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122148328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Estimation of Inertia in Power Systems Using Law of Conservation of Energy","authors":"L. Lavanya, K. Swarup","doi":"10.1109/ICPS52420.2021.9670371","DOIUrl":"https://doi.org/10.1109/ICPS52420.2021.9670371","url":null,"abstract":"One of the fundamental challenges for powering the grid with a significant share of renewable sources is to operate the grid securely with low levels of inertia. Hence, it has become imperative for the grid operator to monitor the inertia of the power grid to optimize the share between conventional and renewable sources and plan for frequency reserves. This paper details the formulation of a novel method to monitor the inertia of the grid and its areas using measurements from PMUs (Phasor Measurement Units). The method uses the Law of Conservation of Energy and Kinetic Energy to devise the problem. Upon detection of frequency events, i.e., power imbalance events, a system of linear equations is formed using PMU measurements, which is then solved by the least-squares algorithm to obtain inertia. The method is tested in Kundur two-area system and modified IEEE 39 bus system.","PeriodicalId":153735,"journal":{"name":"2021 9th IEEE International Conference on Power Systems (ICPS)","volume":"7 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124277619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Adequacy and Limitations of the Information Technology Act in Addressing Cyber-Security Issues of Indian Power Systems","authors":"Sarasij Das","doi":"10.1109/ICPS52420.2021.9670395","DOIUrl":"https://doi.org/10.1109/ICPS52420.2021.9670395","url":null,"abstract":"Worldwide power grids are being modernized with the help of computer technology. India is not an exception. Though the increasing use of computer and computer system has improved the performance of the Indian power grid, it has brought new challenges. Digital protection, monitoring and metering devices have significant connectivity with the cyber world. As a result, Indian power grid has become potential target of cyber criminals. Possibility of a cyber attack on Indian Power Grid is a reality and an imminent threat. From the energy policy point of view, it is important to ensure that the Indian laws adequately address such possible attacks on Indian power grid. In India, Information Technology Act 2000/2008 (IT Act) is the current law that is specifically meant to address the issue of Cyber Space and Crimes. As a result, any cyber attack or cyber crime in Indian power grid will be tested against the provisions of IT Act 2000/2008. This paper examines the adequacy and limitations of the provisions of the IT Act 2000/2008 in addressing cyber security issues of Indian power grid. It is found that appropriate amendments are required to address the limitations of the IT Act 2000/2008 in tackling cyber threats in Indian power grid.","PeriodicalId":153735,"journal":{"name":"2021 9th IEEE International Conference on Power Systems (ICPS)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116940689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}