Pub Date : 2021-04-01DOI: 10.1109/ACPEE51499.2021.9436855
Hui Guo, Zhicheng Ma, Han Zhang, Linlin Liu, Geng Wang, Yanqi Zhang, Xiuli Wang
The integration of large-scale renewable energy sources requires a higher level of peak regulation capability in China Power Grid. A multi-energy complementary bilateral ancillary market model involving concentrating solar power (CSP), thermal, wind and photovoltaic is established. The model aims at maximizing the overall profits with energy saving and emission reduction, considers operation constraints of CSP with thermal energy storage system and provides a benefit evaluation method for CSP stations. Case study of a modified IEEE 30 system is conducted that separately demonstrates that CSP station can benefit from the ancillary market, the ancillary market promotes the accommodation of wind and photovoltaic, and other market participants can also obtain positive benefits and achieve win-win cooperation.
{"title":"Peak Shaving Ancillary Service Market Model of CSP for Renewable Energy Accommodation","authors":"Hui Guo, Zhicheng Ma, Han Zhang, Linlin Liu, Geng Wang, Yanqi Zhang, Xiuli Wang","doi":"10.1109/ACPEE51499.2021.9436855","DOIUrl":"https://doi.org/10.1109/ACPEE51499.2021.9436855","url":null,"abstract":"The integration of large-scale renewable energy sources requires a higher level of peak regulation capability in China Power Grid. A multi-energy complementary bilateral ancillary market model involving concentrating solar power (CSP), thermal, wind and photovoltaic is established. The model aims at maximizing the overall profits with energy saving and emission reduction, considers operation constraints of CSP with thermal energy storage system and provides a benefit evaluation method for CSP stations. Case study of a modified IEEE 30 system is conducted that separately demonstrates that CSP station can benefit from the ancillary market, the ancillary market promotes the accommodation of wind and photovoltaic, and other market participants can also obtain positive benefits and achieve win-win cooperation.","PeriodicalId":127882,"journal":{"name":"2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134429683","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}
Pub Date : 2021-04-01DOI: 10.1109/ACPEE51499.2021.9437011
Yufang Liu, Q. Ma, Chao Xu, Dijie Huang
In the new situation of power development, such as the strengthening of incremental distribution business and the implementation of electric energy substitution strategy, with the same as the scale of investment and construction , the demand for upgrading and reconstruction of distribution network continue to increase. It is of great significance to study a set of reasonable and comprehensive evaluation model for medium and long-term dynamic planning investment of distribution network to guide the accurate investment of distribution network. We employ an index system for the investment efficiency of comprehensive performance of distribution network. An optimal combined weight selection model is built based on fuzzy hierarchical clustering analysis. The information entropy and time degree theory are introduced to the expected performance evaluation model of distribution network planning for establishing the dynamic yardstick evaluation method based on data envelopment analysis. Results are shown by analyzing of investment planning strategy of 9 regions in a province to verify the effectiveness and rationality of the proposed method.
{"title":"Yardstick motivation evaluation method for investment of distribution network","authors":"Yufang Liu, Q. Ma, Chao Xu, Dijie Huang","doi":"10.1109/ACPEE51499.2021.9437011","DOIUrl":"https://doi.org/10.1109/ACPEE51499.2021.9437011","url":null,"abstract":"In the new situation of power development, such as the strengthening of incremental distribution business and the implementation of electric energy substitution strategy, with the same as the scale of investment and construction , the demand for upgrading and reconstruction of distribution network continue to increase. It is of great significance to study a set of reasonable and comprehensive evaluation model for medium and long-term dynamic planning investment of distribution network to guide the accurate investment of distribution network. We employ an index system for the investment efficiency of comprehensive performance of distribution network. An optimal combined weight selection model is built based on fuzzy hierarchical clustering analysis. The information entropy and time degree theory are introduced to the expected performance evaluation model of distribution network planning for establishing the dynamic yardstick evaluation method based on data envelopment analysis. Results are shown by analyzing of investment planning strategy of 9 regions in a province to verify the effectiveness and rationality of the proposed method.","PeriodicalId":127882,"journal":{"name":"2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114205532","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}
Pub Date : 2021-04-01DOI: 10.1109/ACPEE51499.2021.9437039
Li Wei, Wang Qiong, Wang Yizheng, Liu Jinchen, Wang Haoming, Liu Tao
In the context of accelerating the penetration of sharing economy into the field of production and manufacturing, power companies accelerate the promotion of resource management and sharing, which can not only bring rich economic benefits to the company, but also improve the efficiency and social benefits of the whole society. In this paper, the market prospect, technology maturity, policy completeness and security are considered comprehensively, and the evaluation index system of power grid resource availability is established. Determine the weight of the evaluation index of power grid resource availability, determine the judgment matrix of each resource based on different secondary indexes and realize the priority judgment of resource availability, determine effectiveness of the method proposed in this paper is illustrated through practical case analysis and the operational availability degree of typical resources is obtained, which can provide guidance for electric power companies to carry out resource management.
{"title":"Availability Evaluation of Electric Power Company Resources","authors":"Li Wei, Wang Qiong, Wang Yizheng, Liu Jinchen, Wang Haoming, Liu Tao","doi":"10.1109/ACPEE51499.2021.9437039","DOIUrl":"https://doi.org/10.1109/ACPEE51499.2021.9437039","url":null,"abstract":"In the context of accelerating the penetration of sharing economy into the field of production and manufacturing, power companies accelerate the promotion of resource management and sharing, which can not only bring rich economic benefits to the company, but also improve the efficiency and social benefits of the whole society. In this paper, the market prospect, technology maturity, policy completeness and security are considered comprehensively, and the evaluation index system of power grid resource availability is established. Determine the weight of the evaluation index of power grid resource availability, determine the judgment matrix of each resource based on different secondary indexes and realize the priority judgment of resource availability, determine effectiveness of the method proposed in this paper is illustrated through practical case analysis and the operational availability degree of typical resources is obtained, which can provide guidance for electric power companies to carry out resource management.","PeriodicalId":127882,"journal":{"name":"2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114586822","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}
Pub Date : 2021-04-01DOI: 10.1109/ACPEE51499.2021.9437101
Peng Yunhao, Yin Dejun, Hu Yansong
PMSM direct torque control can realize rapid torque response. The voltage space vector modulation technology is introduced into the traditional DTC. While maintaining the advantages of the traditional DTC, such as simple structure and fast torque response, the motor flux linkage trajectory can be more stable and the torque ripple can be effectively reduced. In this paper, considering that the constant amplitude of stator flux will bring unnecessary stator direct axis current and affect the stable operation of the motor, based on SVM-DTC control, the stator flux adaptive algorithm is introduced to prevent the demagnetization of permanent magnet synchronous motor and improve the power factor of the system. The simulation results show that the stator flux adaptive control strategy proposed in this paper can maintain the low torque ripple, improve the power factor of the system, and have good steady and dynamic performance.
{"title":"The stator flux linkage adaptive SVM-DTC control strategy of permanent magnet synchronous motor","authors":"Peng Yunhao, Yin Dejun, Hu Yansong","doi":"10.1109/ACPEE51499.2021.9437101","DOIUrl":"https://doi.org/10.1109/ACPEE51499.2021.9437101","url":null,"abstract":"PMSM direct torque control can realize rapid torque response. The voltage space vector modulation technology is introduced into the traditional DTC. While maintaining the advantages of the traditional DTC, such as simple structure and fast torque response, the motor flux linkage trajectory can be more stable and the torque ripple can be effectively reduced. In this paper, considering that the constant amplitude of stator flux will bring unnecessary stator direct axis current and affect the stable operation of the motor, based on SVM-DTC control, the stator flux adaptive algorithm is introduced to prevent the demagnetization of permanent magnet synchronous motor and improve the power factor of the system. The simulation results show that the stator flux adaptive control strategy proposed in this paper can maintain the low torque ripple, improve the power factor of the system, and have good steady and dynamic performance.","PeriodicalId":127882,"journal":{"name":"2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115917227","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}
Pub Date : 2021-04-01DOI: 10.1109/ACPEE51499.2021.9437106
Yibo Liu, J. Swingler, D. Flynn
With a global increase in electric vehicles (EV) the reliability, quality and performance of EVs is becoming increasingly important. High voltage direct current (HVDC) arc events in cables can lead to fires within EVs. Therefore, in this paper we investigate the failure modes mechanisms and effect analysis (FMMEA) of this safety critical issue. The onset of these failure modes can be multi-factorial so we created a statistical design of experiment to investigate the evolution and mitigation of these failures. Analysis of the arc characteristics collected in laboratory models has been decoupled and classified into time sub-domains. Utilising continuous wavelet transform (CWT) for capturing frequency features and minimizing the influence or erroneous signals. Verification testing was performed using a reference arc model in Simulink for comparative analysis of the experimental and simulated data. Mitigation of arcs via the incorporation of a fuse has been proven to provide sufficient circuit protection. Our results indicate that our methodology provides an accurate framework for cable arc classification and mitigation.
{"title":"Failure Mode Mechanism and Effect Analysis of High Voltage DC Arcs in Electric Vehicle Cable*","authors":"Yibo Liu, J. Swingler, D. Flynn","doi":"10.1109/ACPEE51499.2021.9437106","DOIUrl":"https://doi.org/10.1109/ACPEE51499.2021.9437106","url":null,"abstract":"With a global increase in electric vehicles (EV) the reliability, quality and performance of EVs is becoming increasingly important. High voltage direct current (HVDC) arc events in cables can lead to fires within EVs. Therefore, in this paper we investigate the failure modes mechanisms and effect analysis (FMMEA) of this safety critical issue. The onset of these failure modes can be multi-factorial so we created a statistical design of experiment to investigate the evolution and mitigation of these failures. Analysis of the arc characteristics collected in laboratory models has been decoupled and classified into time sub-domains. Utilising continuous wavelet transform (CWT) for capturing frequency features and minimizing the influence or erroneous signals. Verification testing was performed using a reference arc model in Simulink for comparative analysis of the experimental and simulated data. Mitigation of arcs via the incorporation of a fuse has been proven to provide sufficient circuit protection. Our results indicate that our methodology provides an accurate framework for cable arc classification and mitigation.","PeriodicalId":127882,"journal":{"name":"2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"62 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123306049","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}
Pub Date : 2021-04-01DOI: 10.1109/ACPEE51499.2021.9436904
Xiaohua Huang, Jinxing Xu, Chong Xu, Yuanhang Wu, Xiaoli Li
While working for wireless charging system mutual inductance coil offset will cause magnetic coupling institutions to drop, causes the output voltage and reduce the transmission power of the problems, the article design a migration resistance excellent electric vehicle wireless power transfer (Wireless Power Transfer, WPT) system, the system adopts the LCC/LCC compensation topology and in the primary side reverse winding coil round asymmetric magnetic coupling structure. This paper describes the coil type and the basic principle of asymmetric structure used in the magnetic coupling mechanism, analyzes the effect of adding the reverse winding coil on the migration performance of the magnetic coupling mechanism, and gives the design method. Finally, circuit simulation software is used to simulate the system. The results show that when the transmission distance is 150mm and the horizontal deviation reaches 100mm, the system can still output constant power.
而针对无线充电系统工作时线圈互感偏置会造成机构磁耦合下降，造成输出电压和传输功率降低的问题，本文设计了一种迁移电阻优异的电动汽车无线电力传输(wireless power transfer, WPT)系统，该系统采用LCC/LCC补偿拓扑结构和在初级侧反向绕线线圈的圆形非对称磁耦合结构。介绍了磁耦合机构中采用的非对称结构的线圈类型和基本原理，分析了添加反向绕组线圈对磁耦合机构迁移性能的影响，并给出了设计方法。最后利用电路仿真软件对系统进行仿真。结果表明，当传输距离为150mm，水平偏差达到100mm时，系统仍能输出恒定功率。
{"title":"Design of Magnetic Coupling Mechanism with Gentle Excursion Performance for Wireless Power Transfer System","authors":"Xiaohua Huang, Jinxing Xu, Chong Xu, Yuanhang Wu, Xiaoli Li","doi":"10.1109/ACPEE51499.2021.9436904","DOIUrl":"https://doi.org/10.1109/ACPEE51499.2021.9436904","url":null,"abstract":"While working for wireless charging system mutual inductance coil offset will cause magnetic coupling institutions to drop, causes the output voltage and reduce the transmission power of the problems, the article design a migration resistance excellent electric vehicle wireless power transfer (Wireless Power Transfer, WPT) system, the system adopts the LCC/LCC compensation topology and in the primary side reverse winding coil round asymmetric magnetic coupling structure. This paper describes the coil type and the basic principle of asymmetric structure used in the magnetic coupling mechanism, analyzes the effect of adding the reverse winding coil on the migration performance of the magnetic coupling mechanism, and gives the design method. Finally, circuit simulation software is used to simulate the system. The results show that when the transmission distance is 150mm and the horizontal deviation reaches 100mm, the system can still output constant power.","PeriodicalId":127882,"journal":{"name":"2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123597365","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}
Pub Date : 2021-04-01DOI: 10.1109/ACPEE51499.2021.9436997
Ahmed Abdalah yusuf, Lingqin Yi, Xiang Si, Ning Yang
In recent years, environmental concerns and energy crisis have become serious issues. This has shifted much focus towards the solar energy which is green and renewable. In order to solve the shortcomings of low utilization, low automation and high cost of the traditional photovoltaic system, we propose an automatic tracking and maximum power output device for silicon photocell. The system is composed of solar automatic tracking device, maximum power point tracking (MPPT) system (controlled by STM32) and monitoring system based on Zigbee wireless. The solar automatic tracking device adopts four-quadrant photoelectric detection mode, realizes omni-directional and high-precision biaxial automatic tracking through logic circuit judgment, and makes maximum use of solar energy. The four-switch Buck-Boost circuit is used as the main circuit to realize wide range adjustment and synchronous rectifier control, which is combined with soft-switching technology to greatly improve the conversion efficiency of the system. ZigBee network monitoring system takes CC2530 as the node of transceiver. Results of testing showed, that solar automatic tracking device can track the solar trajectory with high precision and realize the maximum utilization rate of light intensity. The tracking accuracy of MPPT controller reached 99%, and the conversion efficiency also improved greatly, up to 98%. The monitoring system based on Zigbee wireless worked stably. In summary, the device effectively improves the utilization rate of solar energy. The simple structure and low cost make it of great practical value in engineering
{"title":"A Novel Design of Automatic Tracking and Maximum Power output Device for Silicon Photocell Array","authors":"Ahmed Abdalah yusuf, Lingqin Yi, Xiang Si, Ning Yang","doi":"10.1109/ACPEE51499.2021.9436997","DOIUrl":"https://doi.org/10.1109/ACPEE51499.2021.9436997","url":null,"abstract":"In recent years, environmental concerns and energy crisis have become serious issues. This has shifted much focus towards the solar energy which is green and renewable. In order to solve the shortcomings of low utilization, low automation and high cost of the traditional photovoltaic system, we propose an automatic tracking and maximum power output device for silicon photocell. The system is composed of solar automatic tracking device, maximum power point tracking (MPPT) system (controlled by STM32) and monitoring system based on Zigbee wireless. The solar automatic tracking device adopts four-quadrant photoelectric detection mode, realizes omni-directional and high-precision biaxial automatic tracking through logic circuit judgment, and makes maximum use of solar energy. The four-switch Buck-Boost circuit is used as the main circuit to realize wide range adjustment and synchronous rectifier control, which is combined with soft-switching technology to greatly improve the conversion efficiency of the system. ZigBee network monitoring system takes CC2530 as the node of transceiver. Results of testing showed, that solar automatic tracking device can track the solar trajectory with high precision and realize the maximum utilization rate of light intensity. The tracking accuracy of MPPT controller reached 99%, and the conversion efficiency also improved greatly, up to 98%. The monitoring system based on Zigbee wireless worked stably. In summary, the device effectively improves the utilization rate of solar energy. The simple structure and low cost make it of great practical value in engineering","PeriodicalId":127882,"journal":{"name":"2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124482288","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}
Pub Date : 2021-04-01DOI: 10.1109/ACPEE51499.2021.9436861
Yunlei Zhang, Kan Yang, B. Zheng, Guorong Zhu, Dixin Wang, S. Li, K. Xu, Teng Tu
This paper investigates the scheduling strategies for the virtual power plant (VPP) considering different development stages of the electricity market. Firstly, the operation models are formulated to characterize the aggregated components of VPP, including the distributed photovoltaic (PV), wind turbines, demand resources (DRs), electric vehicles (EV) and combined heat and power (CHP) unit as well as conventional units. Next, different operating frameworks have been proposed in order to derive the scheduling strategies of VPP for different development stages of the electricity market. Specifically, a price taker-based scheduling model is developed for VPP during the early stage of market construction. For the mature stage of market development, a bi-level framework is introduced to simulate the bidding and scheduling strategies of VPP acting as active participates. Moreover, the bi-level framework is further recast as a solvable problem. The proposed method is capable to characterize the scheduling strategies of VPP in different stages of market development.
{"title":"Optimal Scheduling Strategies of the Virtual Power Plant Considering Different Development Stages of the Electricity Market","authors":"Yunlei Zhang, Kan Yang, B. Zheng, Guorong Zhu, Dixin Wang, S. Li, K. Xu, Teng Tu","doi":"10.1109/ACPEE51499.2021.9436861","DOIUrl":"https://doi.org/10.1109/ACPEE51499.2021.9436861","url":null,"abstract":"This paper investigates the scheduling strategies for the virtual power plant (VPP) considering different development stages of the electricity market. Firstly, the operation models are formulated to characterize the aggregated components of VPP, including the distributed photovoltaic (PV), wind turbines, demand resources (DRs), electric vehicles (EV) and combined heat and power (CHP) unit as well as conventional units. Next, different operating frameworks have been proposed in order to derive the scheduling strategies of VPP for different development stages of the electricity market. Specifically, a price taker-based scheduling model is developed for VPP during the early stage of market construction. For the mature stage of market development, a bi-level framework is introduced to simulate the bidding and scheduling strategies of VPP acting as active participates. Moreover, the bi-level framework is further recast as a solvable problem. The proposed method is capable to characterize the scheduling strategies of VPP in different stages of market development.","PeriodicalId":127882,"journal":{"name":"2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124690954","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}
In this paper, the demand response is applied to the integrated energy system. Through the switching of transferrable load and heat storage device, a large number of loads are transferred to the period when wind power resources are abundant and conventional loads are relatively low, so as to absorb the forced wind abandonment, thus improving the utilization rate of wind power resources through transferrable load and heat storage device. Based on the further study of how to improve wind power absorption, this paper discussed the influence of wind power absorption system based on transferable load and heat storage devices to the traditional scheduling schemes. The objective function is established with the minimum forced wind abandonment volume and the minimum cost of the comprehensive operating system. The multi-objective genetic algorithm is used to solve the problem, and the optimal solution set can be obtained. Then the single objective optimization function is established by weighting method, and the optimal compromise solution and the final scheduling scheme is finally obtained. This paper takes a power grid operation system as simulation example, and shows that the dispatching scheme of using transferrable load and heat storage devices can greatly reduce the operating cost of the system and enhance the wind power absorption capacity of the system, compared with the traditional dispatching scheme.
{"title":"Optimal Modeling of Integrated Energy System Demand Response Operation Considering Wind Power Absorption","authors":"Peng Lu, Chunxian Feng, Weiming Wu, Tieqiang Wang, Qi Zhou","doi":"10.1109/ACPEE51499.2021.9436895","DOIUrl":"https://doi.org/10.1109/ACPEE51499.2021.9436895","url":null,"abstract":"In this paper, the demand response is applied to the integrated energy system. Through the switching of transferrable load and heat storage device, a large number of loads are transferred to the period when wind power resources are abundant and conventional loads are relatively low, so as to absorb the forced wind abandonment, thus improving the utilization rate of wind power resources through transferrable load and heat storage device. Based on the further study of how to improve wind power absorption, this paper discussed the influence of wind power absorption system based on transferable load and heat storage devices to the traditional scheduling schemes. The objective function is established with the minimum forced wind abandonment volume and the minimum cost of the comprehensive operating system. The multi-objective genetic algorithm is used to solve the problem, and the optimal solution set can be obtained. Then the single objective optimization function is established by weighting method, and the optimal compromise solution and the final scheduling scheme is finally obtained. This paper takes a power grid operation system as simulation example, and shows that the dispatching scheme of using transferrable load and heat storage devices can greatly reduce the operating cost of the system and enhance the wind power absorption capacity of the system, compared with the traditional dispatching scheme.","PeriodicalId":127882,"journal":{"name":"2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124812908","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}
Pub Date : 2021-04-01DOI: 10.1109/ACPEE51499.2021.9436866
A. A. Bhatti, Bin Yang, Xiaosheng Peng, Zhanran Xia, L. Dong, Hongyu Wang, Qiyou Xu
The cable joint is a very complex and sensitive part of the electrical cable. Defects in the cable joint and accessories cause deterioration and degradation of the insulation system because of improper performance, production, assembly, and bad installation. The defects in the cable joints may lead significantly to an increase in the temperature distribution. Some specific features and factors represent the cable's working state and the cable joint's temperature behavior. However, the power cable system strength relies on different characteristics such as a cavity, permittivity, size & shape, and cable position. The main purpose of this paper is to determine the temperature distribution behavior of the cable joint effectively and to resolve the shortcoming of the conventional thermal simulation model, based on the concept of heat transfer model and finite element method (FEM) by using COMSOL Software. First, an equivalent model of 11kV cable joint with XLPE and EPDM insulation layers has been designed. Second, the typical artificial particles, including air particles, semiconductor particles, metal particles, knife cut defect, and needle defect, were added to the cable's insulation. Third, the cable joint simulation with each typical particle and defect has been carried out to examine the temperature distribution behavior. The temperature distribution of each particle has been identified individually. The simulation result determines that each particle and defect's temperature distribution behavior has a different response, and the temperature effect change as the particles and defect change.
{"title":"Simulation of Temperature Distribution Behavior of High Voltage Cable Joints with Typical Defects","authors":"A. A. Bhatti, Bin Yang, Xiaosheng Peng, Zhanran Xia, L. Dong, Hongyu Wang, Qiyou Xu","doi":"10.1109/ACPEE51499.2021.9436866","DOIUrl":"https://doi.org/10.1109/ACPEE51499.2021.9436866","url":null,"abstract":"The cable joint is a very complex and sensitive part of the electrical cable. Defects in the cable joint and accessories cause deterioration and degradation of the insulation system because of improper performance, production, assembly, and bad installation. The defects in the cable joints may lead significantly to an increase in the temperature distribution. Some specific features and factors represent the cable's working state and the cable joint's temperature behavior. However, the power cable system strength relies on different characteristics such as a cavity, permittivity, size & shape, and cable position. The main purpose of this paper is to determine the temperature distribution behavior of the cable joint effectively and to resolve the shortcoming of the conventional thermal simulation model, based on the concept of heat transfer model and finite element method (FEM) by using COMSOL Software. First, an equivalent model of 11kV cable joint with XLPE and EPDM insulation layers has been designed. Second, the typical artificial particles, including air particles, semiconductor particles, metal particles, knife cut defect, and needle defect, were added to the cable's insulation. Third, the cable joint simulation with each typical particle and defect has been carried out to examine the temperature distribution behavior. The temperature distribution of each particle has been identified individually. The simulation result determines that each particle and defect's temperature distribution behavior has a different response, and the temperature effect change as the particles and defect change.","PeriodicalId":127882,"journal":{"name":"2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125071489","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}
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