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2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)最新文献

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Peak Shaving Ancillary Service Market Model of CSP for Renewable Energy Accommodation CSP可再生能源住宿调峰辅助服务市场模型
Pub Date : 2021-04-01 DOI: 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.
大规模可再生能源并网对中国电网调峰能力提出了更高的要求。建立了聚光太阳能(CSP)、热能、风能和光伏的多能互补双边辅助市场模型。该模型以节能减排的整体效益最大化为目标,考虑了光热蓄热系统的运行约束,为光热电站提供了效益评价方法。通过对一个改进的IEEE 30系统的案例分析,分别论证了光热电站可以从辅助市场中获益,辅助市场促进了风电和光伏的适配,其他市场参与者也可以获得正收益,实现合作共赢。
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引用次数: 0
Optimal Scheduling Strategies of the Virtual Power Plant Considering Different Development Stages of the Electricity Market 考虑电力市场不同发展阶段的虚拟电厂最优调度策略
Pub Date : 2021-04-01 DOI: 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.
本文研究了考虑电力市场不同发展阶段的虚拟电厂调度策略。首先,建立了VPP的运行模型,描述了VPP的聚合组件,包括分布式光伏(PV)、风力发电机组、需求资源(DRs)、电动汽车(EV)和热电联产(CHP)机组以及常规机组。其次,提出了不同的运行框架,推导出电力市场不同发展阶段的VPP调度策略。具体而言,在市场建设初期,建立了基于价格接受者的VPP调度模型。针对市场发展成熟阶段,引入双层框架,模拟VPP作为主动参与者的竞价和调度策略。此外,将双层框架进一步重塑为一个可解决的问题。该方法能够表征VPP在不同市场发展阶段的调度策略。
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引用次数: 3
Evaluation Index System of Power Grid Corporation's Operation Benefits Based on Future Low-Carbon Energy Framework 基于未来低碳能源框架的电网公司运营效益评价指标体系
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9437008
Tianbin Liu, Weigang Jin, Zhaoyang Xiang, Hongkun Chen
Structural changes which have taken place in both the power supply side and the load side of the power grid and a new round of power market reform jointly make operation benefits become a growing concern. New methods are required for operation benefits evaluation under the future low-carbon energy framework. In this paper, a feasible and comprehensive evaluation index system of operation benefits is proposed. Firstly, an index-based evaluation criterion is established to evaluate the operation benefits on reliability level, intelligence level, power marketization level, economic benefits, environmental benefits, and social benefits. Next, a mathematical evaluation method is proposed based on the indexes. The analytic hierarchy process (AHP) and the anti-entropy weight method (AEWM) are used to calculate the combination weights of indexes. The proposed evaluation index system can be used to evaluate the operation benefits of power grid under the future low-carbon energy framework. Furthermore, it can also be utilized to compare the pros and cons of different grid operation planning schemes in China.
电网供电侧和负荷侧的结构性变化以及新一轮电力市场化改革的共同作用,使得运营效益日益受到人们的关注。未来低碳能源框架下的运行效益评估需要新的方法。本文提出了一种可行的、综合的经营效益评价指标体系。首先,建立了基于指标的评价标准,从可靠性水平、智能化水平、电力市场化水平、经济效益、环境效益和社会效益四个方面对运行效益进行评价。其次,提出了一种基于指标的数学评价方法。采用层次分析法(AHP)和反熵权法(AEWM)计算各指标的组合权重。该评价指标体系可用于评价未来低碳能源框架下电网的运行效益。此外,它还可以用于比较中国不同电网运行规划方案的优缺点。
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引用次数: 1
Typical application scenarios of rural energy internet platform 农村能源互联网平台典型应用场景
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9436826
Liyuan Peng, Zihao Tong, Huixuan Li, Anbang Xie, Yongle Zheng, Yihan Zhang
Only the specific participants of the energy internet platform can be targeted to develop diversified products and services, so this paper divides the rural energy internet platform into four typical scenarios: government, public, rural agriculture and rural industry. First, through assisting the government to formulate appropriate energy-related policies, make reasonable power planning decisions and carry out accurate industrial investment allocation; Second, by helping users reduce energy costs, improve energy efficiency and improve energy experience; Finally, by improving agricultural production efficiency, increase agricultural economic benefits; Optimizing the current situation of enterprise energy use, realizing the optimization and improvement of enterprise energy use, and helping the energy industry to improve operational efficiency.
只有能源互联网平台的特定参与者才能有针对性地开发多样化的产品和服务,因此本文将农村能源互联网平台分为政府、公众、农村农业和农村工业四个典型场景。一是协助政府制定合适的能源相关政策,做出合理的电力规划决策,进行精准的产业投资配置;第二,通过帮助用户降低能源成本,提高能源效率,改善能源体验;最后,通过提高农业生产效率,增加农业经济效益;优化企业能源利用现状,实现企业能源利用的优化和提升,帮助能源行业提高运行效率。
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引用次数: 0
Research on Active Current-Limiting Control and Fault Characteristics of DC Distribution Network 直流配电网有源限流控制及故障特性研究
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9437094
Qisheng Ran, Zhe Zhang, Jiexiang Han, Xianggen Yin
The DC distribution network based on the hybrid modular multilevel converter (MMC) has the ability of active current-limiting control, which plays an active role in fault clearing of distribution network. However, the fault characteristics of the DC distribution network become complicated because of the active current-limiting control. It brings new problems to the fault detection and judgment of relay protection. According to the structural features of the hybrid MMC, the start-up strategy and control objectives of the active current-limiting control are analyzed in this paper. The improvement suggestions are put forward to maintain the operational safety of the power grid, as well as meet the application requirements of the relay protection. Moreover, The characteristics of the short-circuit current of the DC distribution network are analyzed based on the active current-limiting control. Meanwhile, the influences on the relay protection are estimated. Finally, the effectiveness of the proposed current-limiting control strategy and the correctness of the fault characteristic analysis results are verified by simulation tests.
基于混合模块化多电平变换器(MMC)的直流配电网具有主动限流控制能力,对配电网的故障排除起着积极的作用。然而,有源限流控制使直流配电网的故障特征变得复杂。这给继电保护的故障检测与判断带来了新的问题。根据混合MMC的结构特点,分析了有源限流控制的启动策略和控制目标。为维护电网运行安全,满足继电保护的应用要求,提出了改进建议。此外,还分析了基于有源限流控制的直流配电网短路电流特性。同时,对继电保护的影响进行了估计。最后,通过仿真试验验证了所提限流控制策略的有效性和故障特征分析结果的正确性。
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引用次数: 1
Energy Production Element Planning of Integrated Gas and Power systems Considering the Coordination between Economic and Reliability 考虑经济性与可靠性协调的气电一体化系统能源生产单元规划
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9436885
Xueyong Tang, Ning Luo, Xin He, Minglei Bao, Wenxia Liu, Zhen Li
To guarantee the reliable operation of integrated gas and system, it is essential to consider the reliability issues in the system planning. Considering that, this paper proposes the energy production element planning model of integrated gas and power systems considering the coordination between economic and reliability. Firstly, the reliability models of generating units and gas wells are proposed considering the failure characteristics. On this basis, the reliability constraints of IGPSs are developed considering the impacts of gas contingency on EPS operation. Furthermore, the economy-reliability-coordinated planning model is proposed to determine the deployment of gas storage and power units. The developed model is to minimize the total cost including investment cost, operating cost and load curtailment cost considering the operating constraints and reliability constraints of IGPSs. Finally, the test system composed of IEEE 30-node power system and Belgium 20-node natural gas system is utilized to verify the effectiveness of the model.
为了保证燃气综合系统的可靠运行,必须在系统规划中考虑可靠性问题。为此,本文提出了考虑经济性与可靠性协调的气电一体化系统产能元规划模型。首先,建立了考虑失效特征的发电机组和气井可靠性模型;在此基础上,考虑燃气突发事件对EPS运行的影响,建立了igps的可靠性约束。在此基础上,提出了经济-可靠性协调规划模型,以确定储气机组和发电机组的部署。该模型考虑了igps的运行约束和可靠性约束,以使包括投资成本、运行成本和减载成本在内的总成本最小。最后,利用IEEE 30节点电力系统和比利时20节点天然气系统组成的测试系统验证了模型的有效性。
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引用次数: 0
Waterlogging sensor for intelligent power distribution room 智能配电室内涝传感器
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9437051
Min Zhang, Hong-bin Wang, Fang-zhou Hao, Xiang Lin, J. Fang, Lin-huan Luo, Fan Yang
In order to improve the environmental monitoring and operation and maintenance level of the power distribution room, this paper designs an intelligent waterlogging sensor system, and introduces the overall design, hardware design, and software design of the sensor in detail. The sensor monitors the flooding situation based on the principle of liquid conduction, uses a ZigBee-based wireless transmission module and a 485 wired network to realize data transmission and communication between the sensor and the monitoring center, and judges the operation status of the power distribution room through the host computer. The low power consumption, long lifetime, and integration of waterlogging sensors are realized, which can improve resource utilization, reduce equipment installation costs, and provide technical reference for optimizing equipment operation.
为了提高配电室的环境监测和运维水平,本文设计了一种智能内涝传感器系统,详细介绍了传感器的总体设计、硬件设计和软件设计。该传感器基于液体传导原理对洪水情况进行监测,采用基于zigbee的无线传输模块和485有线网络,实现传感器与监控中心之间的数据传输和通信,并通过上位机对配电室的运行状态进行判断。实现了内涝传感器的低功耗、长寿命、集成化,提高了资源利用率,降低了设备安装成本,为优化设备运行提供了技术参考。
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引用次数: 0
Research on Faulty Section Location Method for Active Distribution Network 有功配电网故障区段定位方法研究
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9437099
X. Wen, G. Zou, Chenghan Zhou, Liangzhi Sun, Xiaogong Du
The integration of distributed generators (DGs) changes the fault characteristics when a fault occurs in the feeder of distribution network, which makes the traditional faulty section location (FSL) method not applicable. In response to this problem, by analyzing the positive sequence fault component (PSFC) of current in distribution network with different types of DGs, a novel differential protection method is proposed in this paper. This method can adapt to the needs of FSL in different scenarios with high sensitivity. And it is not affected by the fault ride-through current. Finally, a simulation model is constructed in PSCAD/EMTDC to verify the validity of the proposed method.
分布式发电机的集成改变了配电网馈线发生故障时的故障特征,使得传统的故障段定位方法不再适用。针对这一问题,本文通过对配电网中不同类型dg的电流正序故障分量(PSFC)的分析,提出了一种新的差动保护方法。该方法具有较高的灵敏度,能够适应不同场景下FSL的需求。并且不受故障穿通电流的影响。最后,在PSCAD/EMTDC中建立了仿真模型,验证了所提方法的有效性。
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引用次数: 0
Coordinative Optimization Operation on the Gas-Electricity Integrated Energy Systems 气电一体化能源系统的协调优化运行
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9437132
Chen Wang, Siyun Yan, Ruifan Shao, Dengji Zhou, Luyao Xu
Integrated energy system (IES) can improve energy efficiency and optimize energy structure. Due to the similarity and coupling between electric power system and gas network, Gas-electricity integrated energy systems (GEIES) has always been the key research direction of integrated energy system. The optimization of electric power system and gas network is usually independent, the benefits of coordinative optimization are unclear. In this paper, an GEIES model is presented, which is optimized with the goal of maximum revenue under reasonable constraints. The case study shows that the coordinative optimization of GEIES can effectively improve the revenue. Coordinative optimization can increase the earning of electric power system and gas network by about 5% in the model.
综合能源系统可以提高能源效率,优化能源结构。由于电力系统与燃气网络的相似性和耦合性,气电集成能源系统一直是集成能源系统的重点研究方向。电力系统和燃气网络的优化通常是独立的,协同优化的效益不明确。本文提出了在合理约束下以收益最大化为目标进行优化的GEIES模型。实例研究表明,GEIES的协调优化可以有效地提高收益。在模型中,协调优化可使电力系统和燃气网络的收益增加约5%。
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引用次数: 1
The stator flux linkage adaptive SVM-DTC control strategy of permanent magnet synchronous motor 永磁同步电机定子磁链自适应SVM-DTC控制策略
Pub Date : 2021-04-01 DOI: 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.
永磁同步电机直接转矩控制可以实现快速的转矩响应。在传统的直接转矩控制中引入了电压空间矢量调制技术。在保持传统直接转矩控制结构简单、转矩响应快等优点的同时,电机磁链轨迹更加稳定,转矩脉动有效减小。本文考虑到定子磁链的恒定幅值会带来不必要的定子直轴电流,影响电机的稳定运行,在SVM-DTC控制的基础上,引入定子磁链自适应算法,防止永磁同步电机退磁,提高系统的功率因数。仿真结果表明,本文提出的定子磁链自适应控制策略能够保持较低的转矩脉动,提高系统的功率因数,具有良好的稳态和动态性能。
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引用次数: 2
期刊
2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)
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