Indian Journal of Power and River Valley Development最新文献

{"title":"Method based on support vector machine and sequential backward selection for seismic liquefaction potential evaluation","authors":"Liao Jianping, Dong Runrun, Wang Jiansheng, Chen Ling","doi":"10.18311/ijprvd/2021/30043","DOIUrl":"https://doi.org/10.18311/ijprvd/2021/30043","url":null,"abstract":"In the paper, the support vector machine (SVM) is utilized to evaluate the earthquake-induced site liquefaction potential, and an optimization algorithm based on cross validation and sequential backward selection(SBS) is proposed to improve the generalization ability of the classifier for seismic liquefaction potential evaluation(SLPE). Usually, the accuracy of SLPE using the SVM varies greatly when the training dataset and test dataset change, so the classifier is not reliable enough in practice. Because cross validation is more convincing for evaluating the classifier performance in machine learning, the algorithm in the paper tries to reduce the maximum error of cross validation through adopting SBS to determine the input variables of the SVM. The performance of the classifier is assessed by the area under the curve (AUC) on the basis of confusion matrix. As shown by data validation, the algorithm can reduce the maximum error of cross validation and the variation of accuracy in SLPE while maintaining good performance of the classifier. In conclusion, a method that can improve the reliability of SVMs for classification in SLPE is put forward in the paper.","PeriodicalId":226140,"journal":{"name":"Indian Journal of Power and River Valley Development","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133554693","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":"Profitability prediction in thermal power enterprise based on the improved system dynamics model","authors":"Shuliang Liu, Yijing Liang","doi":"10.18311/ijprvd/2021/30042","DOIUrl":"https://doi.org/10.18311/ijprvd/2021/30042","url":null,"abstract":"This paper tries to improve the system dynamics model and to establish the model of the thermal power enterprise profitability by using Newton interpolation method to optimize the nonlinear function, MATLAB to fitting equation and data analysis; and through the VENSIM to present a simulation. The model is dissertated and validated by some thermal power enterprise's financial data. This model can provide enterprises with management decision-making reference.","PeriodicalId":226140,"journal":{"name":"Indian Journal of Power and River Valley Development","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127821928","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":"Grid integration of renewables: challenges and solutions","authors":"K. V. Vidyanandan, B. Kamath","doi":"10.18311/ijprvd/2021/29662","DOIUrl":"https://doi.org/10.18311/ijprvd/2021/29662","url":null,"abstract":"Exponential growth in the energy demand on account of rising population and economic growth, increasing apprehensions of energy security coupled with climate change and global warming concerns are some of the major drivers for pushing the renewable energy (RE) to the top of the energy portfolio. Among various renewable energy resources, wind and solar PV systems are experiencing rapid growth since 2010. By the end of 2016, the world total capacity of wind power generation was 487 GW and that of solar PV was 303 GW, aggregating to a penetration level of 4.0% and 1.5% respectively. Global renewable energy penetration till December 2016, excluding conventional hydro share (of 16.6%) was only around 8.0%. However, many countries have set target of 30% RE based electricity generation by 2030. India has an ambitious target of achieving 175 GW of RE power by 2022, with 100 GW from solar, 60 GW from wind, 10 GW from biomass and 5 GW from small hydro. Power generation from renewables often takes place through distributed generation (DG). These units, mostly located in remote locations, are not centrally planned or dispatched, and are usually connected to distribution grids at LV or MV levels. In few cases, large capacity RE generation are also connected to transmission networks. As a result, the power generation structure is moving from the large, centralized plants to a mixed generation pool consisting of traditional large plants and many smaller DG units. Most of the RE generators have electrical characteristics that are different from the synchronous machines. Since a large group of DG technologies use power electronics converters for grid connectivity, they introduce many technical issues related to the operation, control and protection of the power system, impacting generators, transmission system and consumer devices. This paper presents some of the technical issues and challenges that need to be addressed for the effective grid integration of RE based power generators so that eventually our reliance on polluting and expensive fossil based hydrocarbon driven power generation can be reduced substantially.","PeriodicalId":226140,"journal":{"name":"Indian Journal of Power and River Valley Development","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116299987","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":"Expanding the renewables market: how the merchants can be attracted","authors":"J. Bhattacharya","doi":"10.18311/ijprvd/2021/29658","DOIUrl":"https://doi.org/10.18311/ijprvd/2021/29658","url":null,"abstract":"No Abstract.","PeriodicalId":226140,"journal":{"name":"Indian Journal of Power and River Valley Development","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134052880","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":"Status of solar photovoltaic systems in India","authors":"V. Saravanan, M. Aravindan, V. Balaji, M. Arumugam","doi":"10.18311/ijprvd/2021/29661","DOIUrl":"https://doi.org/10.18311/ijprvd/2021/29661","url":null,"abstract":"India is marching forward to achieve solar power generation, with a target of 100 GW by the year 2022. This paper reports the recent progress and developments in solar power sector in India. It also supports the prevailing progressive path for solar power projects and recommends future course of actions.","PeriodicalId":226140,"journal":{"name":"Indian Journal of Power and River Valley Development","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120957501","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":"Geothermal plants: a brief state of the art","authors":"J. Bhattacharya","doi":"10.18311/ijprvd/2021/29659","DOIUrl":"https://doi.org/10.18311/ijprvd/2021/29659","url":null,"abstract":"No Abstract.","PeriodicalId":226140,"journal":{"name":"Indian Journal of Power and River Valley Development","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126002712","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":"Where stands the development and innovation of smart pressure sensor technology","authors":"Jayanth Bhattacharya","doi":"10.18311/ijprvd/2021/29366","DOIUrl":"https://doi.org/10.18311/ijprvd/2021/29366","url":null,"abstract":"NO ABSTRACT","PeriodicalId":226140,"journal":{"name":"Indian Journal of Power and River Valley Development","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124831567","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":"Don’t blame the government for lack of support. Innovations will come from inside: openness to ideas and action","authors":"Jayanth Bhattacharya","doi":"10.18311/ijprvd/2021/29364","DOIUrl":"https://doi.org/10.18311/ijprvd/2021/29364","url":null,"abstract":"NO ABSTRACT","PeriodicalId":226140,"journal":{"name":"Indian Journal of Power and River Valley Development","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130834890","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":"On-grid or off-grid solar power for homes and MSMEs?","authors":"Jayanth Bhattacharya","doi":"10.18311/ijprvd/2021/29368","DOIUrl":"https://doi.org/10.18311/ijprvd/2021/29368","url":null,"abstract":"NO ABSTRACT","PeriodicalId":226140,"journal":{"name":"Indian Journal of Power and River Valley Development","volume":"233 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116358849","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":"Research of a new security mechanism on energy internet","authors":"Luo Yongmei, Wang Ying, Li Gen","doi":"10.18311/ijprvd/2021/29371","DOIUrl":"https://doi.org/10.18311/ijprvd/2021/29371","url":null,"abstract":"The sustainable exploitation and utilization of new energy is the basis of future development of mankind. As the core infrastructure for the efficient and secure utilization of renewable energy sources, the energy internet is an important strategic resource and an embodiment of the comprehensive national strength. This paper presents a new security mechanism based on Trusted Platform Module (TPM). Fistly, the analysis of the structure of the energy internet is discribed from two aspects of logic structure and network topological structure. Sencondly the existing research methods of energy internet security are divided into three classes: security demand-driven method, security model-driven method and system-theoretic method. The vulnerability of isolated research and lack of integrated solution is found out. Then the new security mechanism is propossed and the security model along with the consuming layer protocol are put forward. Finally the security analysis is processed. The results show that the new security mechanism can satisfy the security requirements of energy internet.","PeriodicalId":226140,"journal":{"name":"Indian Journal of Power and River Valley Development","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125669245","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}