2022 22nd National Power Systems Conference (NPSC)最新文献_第9页

Entropy Based Spectral Clustering For Distribution Network With High Penetration of DGs 基于熵的高dg渗透率配电网谱聚类

2022 22nd National Power Systems Conference (NPSC) Pub Date : 2022-12-17 DOI: 10.1109/NPSC57038.2022.10069479

D.Satish Kumar, B. Padhy

{"title":"Entropy Based Spectral Clustering For Distribution Network With High Penetration of DGs","authors":"D.Satish Kumar, B. Padhy","doi":"10.1109/NPSC57038.2022.10069479","DOIUrl":"https://doi.org/10.1109/NPSC57038.2022.10069479","url":null,"abstract":"High penetration of distributed generation (DG) into the distribution network (DN) causes voltage limit violation at several buses. With the evolution in inverter technology, DGs offer an optimistic solution to maintain the voltage profile by controlling its active and reactive power. Centralized voltage control (CVC) using the voltage controlling capability of available DGs in the distribution network is not a good solution due to the size of the DN. Additionally, perturbation at any DGs does not impact the voltage level at all buses equally. For maintaining the voltage profile at a few buses, power curtailment from all the DGs is not an economically fair solution for the utility grid. Therefore, decentralized voltage control is considered as a more practical and economical approach to maintaining the voltage profile at all buses. In this paper, novel entropy-based spectral clustering has been proposed to partition the DN. For implementing the proposed method, the impact of DGs on voltage deviation has been measured in terms of entropy. Further using entropy, spectral clustering has been performed. The proposed clustering decouples the distribution network in such a way that available DGs in clusters are capable of maintaining voltage profiles in the clusters. Further effectiveness of the proposed method has been done on IEEE 33 test system.","PeriodicalId":162808,"journal":{"name":"2022 22nd National Power Systems Conference (NPSC)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132346358","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}

引用次数: 0

A Reliable Accelerated Protection Scheme for Converter-Dominated Power Networks 一种可靠的变流器主导电网加速保护方案

2022 22nd National Power Systems Conference (NPSC) Pub Date : 2022-12-17 DOI: 10.1109/NPSC57038.2022.10069232

S. Paladhi, Q. Hong, C. Booth

引用次数: 0

Network-Based Finite-Time Secondary Level Control for Critical Bus Voltage Restoration and Accurate Reactive Power-Sharing 基于网络的临界母线电压恢复和精确无功共享的有限时间二次电平控制

2022 22nd National Power Systems Conference (NPSC) Pub Date : 2022-12-17 DOI: 10.1109/NPSC57038.2022.10069183

V. Vaishnav, Dushyant Sharma, Anoop Jain

引用次数: 0

Static Security Assessment of Large Power Systems Under N-1-1 Contingency n -1事故下大型电力系统静态安全评估

2022 22nd National Power Systems Conference (NPSC) Pub Date : 2022-12-17 DOI: 10.1109/NPSC57038.2022.10069705

P. Prabhakar, R. Krishan, D. Pullaguram

引用次数: 0

Distributed Energy Management of Electric Vehicles Under Prediction Based Asynchronous ADMM 基于异步ADMM预测的电动汽车分布式能量管理

2022 22nd National Power Systems Conference (NPSC) Pub Date : 2022-12-17 DOI: 10.1109/NPSC57038.2022.10069729

Bakul Kandpal, Ashu Verma

{"title":"Distributed Energy Management of Electric Vehicles Under Prediction Based Asynchronous ADMM","authors":"Bakul Kandpal, Ashu Verma","doi":"10.1109/NPSC57038.2022.10069729","DOIUrl":"https://doi.org/10.1109/NPSC57038.2022.10069729","url":null,"abstract":"Energy management for electric vehicles (EVs) requires controlling their power consumption in reference to a predetermined objective. However, optimality of energy management strategies can also depend upon extrinsic factors such as communication synchronization between EV agents and a coordinator. This paper proposes a distributed scheduling algorithm with computationally heterogeneous EV agents under learning-aided alternating direction method of multipliers (ADMM). The computational or communication delay between neighbouring EV agents is handled using asynchronous update of Lagrangian parameter. Moreover, an auto-regressive prediction model is developed for estimating the information lost due to communication disruption between EV agents. This ensures all agents are exempt from strict synchronization requirements between each other, thereby improving the time-complexity of the distributed algorithm. Simulations run for a typical EV charging station under a contractual power procurement limit, show that proposed algorithm reduces the iterations required for execution, while ensures improved optimality at convergence compared to uncorrected asynchronized ADMM.","PeriodicalId":162808,"journal":{"name":"2022 22nd National Power Systems Conference (NPSC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114983463","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}

引用次数: 0

Reactive DLMP for Hierarchical Energy Management and Optimal Reactive Power Response from EVs 电动汽车分层能量管理与最优无功响应的无功DLMP

2022 22nd National Power Systems Conference (NPSC) Pub Date : 2022-12-17 DOI: 10.1109/NPSC57038.2022.10069172

Bhavana Jangid, Parul Mathuria, Vikas Gupta

{"title":"Reactive DLMP for Hierarchical Energy Management and Optimal Reactive Power Response from EVs","authors":"Bhavana Jangid, Parul Mathuria, Vikas Gupta","doi":"10.1109/NPSC57038.2022.10069172","DOIUrl":"https://doi.org/10.1109/NPSC57038.2022.10069172","url":null,"abstract":"The aggregated demand-side flexibility has become a promising pathway to provide grid support services. Several management studies focusing on active demand response through Electric Vehicle Aggregator (EVA) and active price signal design are presented but the provision of reactive response and pricing is neglected. This paper presents a hierarchical energy management strategy for Distribution System Operator (DSO) and Electric Vehicle Aggregator (EVA) in an Active Distribution Network (ADN). Bilevel programming approach is adopted, where the EVA provides reactive demand response to the distribution grid. The EVA is motivated by reactive Distribution Location Marginal Price (DLMP) provided by the DSO. The lower-level aims to minimize the operational cost of ADN considering system security, and the upper-level aims to reduce the total payment of EVA. The Karush-Kuhn-Tucker (KKT) optimality conditions are used to convert the bilevel model into a single-level optimization problem, and active/reactive DLMPs are computed using the lagrangian function’s derivation. A case study of IEEE 33-bus radial distribution system is considered to illustrate the proposed hierarchical optimization problem. The results are analyzed in terms of nodal voltages, impact of reactive pricing on the system economics and, on active DLMPs. The analysis of the case study indicates the proposed approach can improve the economic and physical system performance due to the introduction of reactive power pricing at the distribution level.","PeriodicalId":162808,"journal":{"name":"2022 22nd National Power Systems Conference (NPSC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124916942","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}

引用次数: 0

Impact of Inertia-Less Generation on Coherency and Damping of Electro-Mechanical Modes 无惯性产生对机电模式相干性和阻尼的影响

2022 22nd National Power Systems Conference (NPSC) Pub Date : 2022-12-17 DOI: 10.1109/NPSC57038.2022.10069699

Aruna Gulati, D. Brahma, N. Senroy

引用次数: 0

An Improved Z-Source Converter with Reduced Device Count for Utility Level PV System 一种用于公用事业级光伏系统的改进z源变换器

2022 22nd National Power Systems Conference (NPSC) Pub Date : 2022-12-17 DOI: 10.1109/NPSC57038.2022.10069742

Yugal Kishor, R. Patel, L. Sahu, A. Tiwari

{"title":"An Improved Z-Source Converter with Reduced Device Count for Utility Level PV System","authors":"Yugal Kishor, R. Patel, L. Sahu, A. Tiwari","doi":"10.1109/NPSC57038.2022.10069742","DOIUrl":"https://doi.org/10.1109/NPSC57038.2022.10069742","url":null,"abstract":"In this paper, a modified Z-source (ZS) derived non-isolated high step-up DC-DC converter is proposed for efficient integration of low-voltage (LV) micro-sources such as solar PV, fuel cells, DC microgrids etc. Nonetheless, several high gain topologies proposed in the literature have limitations such as a limited voltage boosting factor, increased device voltage stress, inability to tolerate wide input voltage variations, increased device count, discontinuous input current, and so on. Considering the limits, a modified high gain converter is presented by adding two voltage multiplier cells (VMC) to the ZS converter to minimize device voltage stress and count. The presented converter provides improved conversion efficiency at lower duty ratios while maintaining continuous input current and sustaining output voltage under wide input variations. The detailed topological comparison is carried out. Furthermore, thermal modelling of the suggested converter is performed in PLECS Simulink platform to assess thermal loading under steady-state operation. Finally, simulation findings verify the theoretical statements.","PeriodicalId":162808,"journal":{"name":"2022 22nd National Power Systems Conference (NPSC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129603568","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}

引用次数: 0

Single Ended Fault Locator for Power Transmission Lines Connected with Inverter Based Resources: Problems and Mitigation Approach 基于资源与逆变器连接的输电线路单端故障定位:问题及缓解方法

2022 22nd National Power Systems Conference (NPSC) Pub Date : 2022-12-17 DOI: 10.1109/NPSC57038.2022.10069782

Likhitha Kukkala, O. Naidu, A. V, Shivani Sharma

引用次数: 0

A Single End Backup Protection Scheme for MMC-HVDC Line Using Reactor Power at High Frequency 高频电抗器供电的MMC-HVDC单端备份保护方案

2022 22nd National Power Systems Conference (NPSC) Pub Date : 2022-12-17 DOI: 10.1109/NPSC57038.2022.10069403

P. Gupta, S. Samantaray

引用次数: 0