2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)最新文献_第7页

A Coordinated Frequency Regulation Method for Offshore Wind Farms Integrated by VSC-HVDC VSC-HVDC一体化海上风电场频率协调调节方法

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2020-06-01 DOI: 10.1109/ACPEE48638.2020.9136206

Jiaming Yan, Fanglei Liu, Fan Wang, Guoyi Xu, T. Bi

{"title":"A Coordinated Frequency Regulation Method for Offshore Wind Farms Integrated by VSC-HVDC","authors":"Jiaming Yan, Fanglei Liu, Fan Wang, Guoyi Xu, T. Bi","doi":"10.1109/ACPEE48638.2020.9136206","DOIUrl":"https://doi.org/10.1109/ACPEE48638.2020.9136206","url":null,"abstract":"At present, Voltage Source Converter based High Voltage Direct Current Transmission (VSC-HVDC) is widely used in connecting OWF to the main power system. Different from onshore wind farms, OWFs are decoupled from the system frequency due to VSC-HVDC connection, so the traditional onshore wind farm frequency control strategy cannot be directly applied, which brings new challenges to the frequency support in onshore system when The frequency fluctuation. The VSC-HVDC connected OWFs has the rotational kinetic energy in the wind turbines’ rotor and the DC capacitor electrostatic energy of the VSC-HVDC system which could be utilized for frequency control. Based on the characteristics of the two power sources, a coordinated frequency control strategy which can suppress secondary frequency drop and assist the rotor speed recovery of the wind turbine was proposed. By means of this strategy, the onshore power system frequency nadir and rate of change of frequency are reduced. And the second frequency drop caused by the rotor speed recovery of wind turbines could be limited. A low-inertia power system model in Matlab/Simulink is used to testify the effectiveness of the strategy.","PeriodicalId":223198,"journal":{"name":"2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131949320","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: 2

Research on Dynamic Optimized Operation Strategy of Distribution Network Considering Demand Response 考虑需求响应的配电网动态优化运行策略研究

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2020-06-01 DOI: 10.1109/ACPEE48638.2020.9136397

Lujie Oi, Kuihua Wu, Yaolei Wang, Xin Jing, Can Cui, R. Zhao

{"title":"Research on Dynamic Optimized Operation Strategy of Distribution Network Considering Demand Response","authors":"Lujie Oi, Kuihua Wu, Yaolei Wang, Xin Jing, Can Cui, R. Zhao","doi":"10.1109/ACPEE48638.2020.9136397","DOIUrl":"https://doi.org/10.1109/ACPEE48638.2020.9136397","url":null,"abstract":"Reasonably optimizing the operation structure of the power grid, ensuring power quality and safety to the greatest extent, and meeting user-side power demand are the primary tasks of power grid operation.In recent years, thanks to the deepening of the construction and transformation of distribution networks in various places and the promotion of typical wiring of distribution networks, the power point and grid structure of distribution networks tend to be reasonable, which makes it possible to transfer loads on a large scale through a medium voltage distribution network.In addition, the implementation of distribution automation and the continuous improvement of smart grid construction have enabled a large number of switches to complete operations in a short period of time.Intelligent and real-time operation of the distribution network has been strengthened.To this end, this paper constructs a dynamic optimization operation scheme for distribution networks that takes into account demand response(DR) and distribution network reconstruction.The article uses IEEE33 node for power flow simulation. The results show that the method described in this paper can effectively guarantee the safety and reliability of power distribution lines, reduce the cost of power network operation and maintenance, and improve the efficiency of the power grid.","PeriodicalId":223198,"journal":{"name":"2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132038233","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: 1

Power Control Strategy of Battery Energy Storage System Participating in Power System Peak Load Shifting 参与电力系统调峰的蓄电池储能系统功率控制策略

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2020-06-01 DOI: 10.1109/ACPEE48638.2020.9136346

Yutian Chen, Xiuli Wang, Jianxue Wang, Tao Qian, Q. Peng

{"title":"Power Control Strategy of Battery Energy Storage System Participating in Power System Peak Load Shifting","authors":"Yutian Chen, Xiuli Wang, Jianxue Wang, Tao Qian, Q. Peng","doi":"10.1109/ACPEE48638.2020.9136346","DOIUrl":"https://doi.org/10.1109/ACPEE48638.2020.9136346","url":null,"abstract":"As energy and environmental issues become more prominent, the integration of renewable energy into power system is increasing. However, the intermittent renewable energy will pose the challenge to the operation of power system. Utilizing energy storage equipment is an effective solution to enhance power system’s operation performance. This paper proposes the constant and variable power charging and discharging control strategies of battery energy storage system for peak load shifting of power system, and details the principles and control steps of the two different control strategies. The capacity of energy storage device is determined by the constraints of peak load shifting. To further investigate two control strategies, the evaluation indexes, including peak clipping rate, peak-valley rate, and standard deviation of load change are designed for assessing effects of different charging/discharging control strategies on the operation of power systems. According to the simulation results of MATLAB, the variable power charging/discharging control strategy of battery energy storage system proves to be a better solution to peak load shifting of power system.","PeriodicalId":223198,"journal":{"name":"2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131317576","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: 3

Study on Audible Noise Characteristics of Filter Capacitors and Reactors in HVDC Converter Stations by Using Sound Signal Processing Array Technique 用声信号处理阵列技术研究高压直流换流站滤波电容器和电抗器的可听噪声特性

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2020-06-01 DOI: 10.1109/ACPEE48638.2020.9136186

Lv Wang, Jian Wu, Jingyi Wei, H. Zhou, M. Geng, Xiaochun Bai

{"title":"Study on Audible Noise Characteristics of Filter Capacitors and Reactors in HVDC Converter Stations by Using Sound Signal Processing Array Technique","authors":"Lv Wang, Jian Wu, Jingyi Wei, H. Zhou, M. Geng, Xiaochun Bai","doi":"10.1109/ACPEE48638.2020.9136186","DOIUrl":"https://doi.org/10.1109/ACPEE48638.2020.9136186","url":null,"abstract":"Compared with AC substation, DC substation incorporates more kinds of electrical devices emitting high level of noise, which leads to more complicated acoustic filed and exerts negative influences to ambient environment and residents. Filter capacitors and reactors reveal to be the main noise sources in HVDC converter stations. In order to control and restrict the noise emission, it is necessary to study the noise characteristics of filter capacitor and reactor and figure out the maximum noise contribution. In this paper, the noise generating mechanism of AC filter capacitor and reactor are theoretical introduced firstly. Then the sound signal processing array technique based on beam forming algorithm is investigated and applied to build the noise positioning and measurement system. By applying the novel system to measure and positioning the noise emission in different types of filter equipment fields, the general noise distribution and the spectral characteristic of filter capacitor and reactor are obtained. The measurement results illustrated that the sound signal processing array technique based on beam forming algorithm is very useful for noise positioning and extraction in filter equipment field. The maximum noise source could be found and the accuracy of noise abatement project could be largely improved.","PeriodicalId":223198,"journal":{"name":"2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131351078","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: 4

Atmosphere Dependence of DC Surface Flashover Voltage of Insulators 绝缘子直流表面闪络电压与大气的关系

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2020-06-01 DOI: 10.1109/ACPEE48638.2020.9136459

Zhenjun Zhang, Qingqun Ji, Zhenhua Zhu, Q. Shen, Jianqiang Han, Na Li

{"title":"Atmosphere Dependence of DC Surface Flashover Voltage of Insulators","authors":"Zhenjun Zhang, Qingqun Ji, Zhenhua Zhu, Q. Shen, Jianqiang Han, Na Li","doi":"10.1109/ACPEE48638.2020.9136459","DOIUrl":"https://doi.org/10.1109/ACPEE48638.2020.9136459","url":null,"abstract":"According to the existing vacuum surface flashover theory, the flashover breakdown discharge is a plasma discharge channel formed in the thin layer of desorbed gas. Therefore, the degassing of the dielectric material in a closed environment is a key factor affecting the flashover performance. The continuous degassing of the solid material will accumulate in a closed environment, causing a low-pressure discharge phenomenon under an applied electric field. In this paper, DC surface flashover experiments of composite sample containing micro and nano-semiconductor additives are studied in different pressures to reveal the surface flashover mechanism. When the electrode spacing is 1mm and the air pressure is in the range of 10−4~10−1 Pa, the flashover voltage remains basically constant. The DC flashover voltage is rapidly reduced from 10−1 Pa and reaches a minimum around 15Pa. The flashover voltage of the micro-composite sample is approximately similar to the pure sample. The DC discharged voltage of the nano-modified sample slightly increased compared with the pure sample, and the amplitude of the flashover voltage did not change significantly in the range of 5 to 500 Pa. The experiments suggest that the reasons for the results may be as follows: Firstly, the outgassing of the solid surface has less effect on the degree of vacuum at low pressure. Secondly, when the air pressure is used as an independent variable, the influence of other factors is negligible.","PeriodicalId":223198,"journal":{"name":"2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129205374","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

Optimal control with deep reinforcement learning for shunt compensations to enhance voltage stability 基于深度强化学习的并联补偿最优控制提高电压稳定性

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2020-06-01 DOI: 10.1109/ACPEE48638.2020.9136271

S. Cao, Shiwu Liao, Shaorong Wang, Xiaotong Luo

引用次数: 2

Distributed Cooperative Control of Multiple DC Electric Springs for Voltage Regulation in DC Microgrid 用于直流微电网电压调节的多个直流弹簧分布式协同控制

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2020-06-01 DOI: 10.1109/ACPEE48638.2020.9136532

Zhonghua Chen, Jinya Zhou, Chunlei Ren, Yufei Wang

引用次数: 0

Active / Passive Switching Control Strategy for MMC-HVDC Connected to Island Power Grid MMC-HVDC接入孤岛电网的有源/无源切换控制策略

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2020-06-01 DOI: 10.1109/ACPEE48638.2020.9136563

Gulipali Sailijiang, Wenzhong Ma

引用次数: 1

Spectral Characteristics and Identification Method of Main Noise Sources of ±800kV Converter Station Based on Timbre Parameters 基于音色参数的±800kV换流站主要噪声源频谱特征及识别方法

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2020-06-01 DOI: 10.1109/ACPEE48638.2020.9136441

Jingchen Zhang, Yuanqing Liu, Wenyu Li, Lin Lu, Zhenjie Li

{"title":"Spectral Characteristics and Identification Method of Main Noise Sources of ±800kV Converter Station Based on Timbre Parameters","authors":"Jingchen Zhang, Yuanqing Liu, Wenyu Li, Lin Lu, Zhenjie Li","doi":"10.1109/ACPEE48638.2020.9136441","DOIUrl":"https://doi.org/10.1109/ACPEE48638.2020.9136441","url":null,"abstract":"Noise produced by electrical equipment in the UHV converter station during operation may adversely affect the surrounding environment. In order to identify the contribution of equipment noise in the station from the total noise at the station boundary, it is necessary to conduct an in-depth study on the spectrum characteristics and identification methods of main noise sources in the converter station, so as to control the noise of the equipment in the station in a targeted manner. In this paper, basic characteristics of the source noise spectrum were analyzed based on the measured spectral data around the source equipment. Then, reasonable timbre parameters were selected. Finally, spectral characteristics of main noise sources equipment in the UHV converter station were compared based on the timbre parameters, and characteristic timbre parameters of the main sound sources equipment in the station are obtained. According to these characteristic timbre parameters, the identification method of main noise sources equipment noise in the converter station were given, and the noise source in multiple converter stations is identified by this method. Results show that the noise source noise identification method’s the accuracy of UHV converter station based on timbre parameters is more than 85%, which proves the accuracy of the method. The identification method proposed in this paper can be applied to study the noise of noise sources equipment inside the station of converter station.","PeriodicalId":223198,"journal":{"name":"2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)","volume":"800 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123005232","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

Research on Characterization Method of Power Grid Operation Mode Based on Electrical Distance Sensitivity 基于电距离灵敏度的电网运行模式表征方法研究

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2020-06-01 DOI: 10.1109/ACPEE48638.2020.9136482

Lulu Zhang, Jinxiu Hou, Dongyu Shi, Yawei Wei

引用次数: 0