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2023 6th International Conference on Energy, Electrical and Power Engineering (CEEPE)最新文献

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Research on Multi-operating Point Control Strategy of Extended Range Electric Vehicle Engine 增程电动汽车发动机多工作点控制策略研究
Pub Date : 2023-05-12 DOI: 10.1109/CEEPE58418.2023.10167122
Wen Wang, Wenbo Li, Fufan Qu, Jiawen Cai, Peng Wang, Hong-Yang Zheng
Aiming at the problem of the influence of the control of the operating state of the extended-range electric vehicles (EREVs) engine on the fuel economy of the whole vehicles, this paper studies the multi-operating point control strategy of the extended-range electric vehicles engine. Firstly, the driving motor model, generator model, engine model and power battery model of extended range electric vehicles are established. Further, the vehicle control model and engine multi-operating point control model are built on the MATLAB/Simulink platform. Through co-simulation with VPAT, The effectiveness of vehicle control strategy and engine multi-point control strategy is verified in WLTC operating condition. The results show that the fuel consumption per 100 km is about 2% lower and the comprehensive energy utilization efficiency is 3% higher than that of the single working point control strategy under WLTC condition, and the expected effect is achieved.
针对增程电动汽车发动机工作状态控制对整车燃油经济性的影响问题,研究了增程电动汽车发动机多工作点控制策略。首先,建立了增程式电动汽车的驱动电机模型、发电机模型、发动机模型和动力电池模型;在MATLAB/Simulink平台上建立了整车控制模型和发动机多工作点控制模型。通过与VPAT的联合仿真,验证了整车控制策略和发动机多点控制策略在WLTC工况下的有效性。结果表明,在WLTC工况下,与单工作点控制策略相比,百公里油耗降低约2%,能源综合利用效率提高约3%,达到了预期效果。
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引用次数: 0
An Open-circuit Fault Diagnosis Method for Power Switching Devices of DC Charging Piles of Electric Vehicles Based on Model Predictive Control Strategy 基于模型预测控制策略的电动汽车直流充电桩电源开关装置开路故障诊断方法
Pub Date : 2023-05-12 DOI: 10.1109/CEEPE58418.2023.10166275
Hongtao Li, Mingchang Ding, Yinghua Dong, Yuan Li, Chao Zhao, Shuangqing Zhang
Aiming at the open circuit fault of power switching devices which is common in the DC charging pile of electric vehicles, a real-time fault diagnosis method of electric vehicle charging pile based on model predictive control is proposed in this paper. The model predictive current control method is adopted to replace the PI controller in the current loop of the traditional PWM rectifier. On this basis, the switch state of the rectifier applied under the open circuit fault of the power switching devices is compared with the optimal switch state obtained by model predictive control, and the fault feature signal is established to realize the fault diagnosis and positioning of the charging pile power switching devices. Since the fault feature signals of different power switching devices have no influence on each other, this method has significant effect on single tube, double tube, and multiple tube simultaneously fault. The simulation results verify the correctness and effectiveness of the proposed fault diagnosis method for charging piles.
针对电动汽车直流充电桩中常见的电源开关器件开路故障,提出了一种基于模型预测控制的电动汽车充电桩实时故障诊断方法。采用模型预测电流控制方法取代传统PWM整流器电流环中的PI控制器。在此基础上,将电源开关装置开路故障下应用的整流器的开关状态与模型预测控制获得的最优开关状态进行比较,建立故障特征信号,实现充电桩电源开关装置的故障诊断与定位。由于不同功率开关器件的故障特征信号互不影响,因此该方法对单管、双管和多管同时故障的检测效果显著。仿真结果验证了所提充电桩故障诊断方法的正确性和有效性。
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引用次数: 0
Quality Inspection Scheduling Problem Based on Reinforcement Learning Environment 基于强化学习环境的质量检验调度问题
Pub Date : 2023-05-12 DOI: 10.1109/CEEPE58418.2023.10165918
Tao Xu, Kai Xu, Jiangming Zhang, Si-qing Yang, Jun-Heng Huang
Quantity inspection plays an important role in power metering. With the development of the digital construction of the quality inspection laboratory, the scheduling algorithm of quality inspection tasks requires higher scheduling efficiency and accuracy to meet the diverse needs of practical applications. Different from the traditional job-shop scheduling problem (JSP), there is no fixed corresponding relationship between samples and tasks in the quality inspection task scheduling problem (QISP), which means a higher degree of freedom of scheduling. At the same time, quality inspection tasks have more complex constraints such as serial, parallel, and mutual exclusion, which makes the existing scheduling algorithms cannot be directly applied. This paper builds a reinforcement learning (RL) based method for QISP. A new scheduling feature representation method is proposed to fully describe the state of quality inspection tasks and sample-device utilization. Aiming to solve the problem of sparse rewards, we present a reward function to integrate scheduling environment utilization rate and empty time. Considering the non-repetitive and complex constraints of quality inspection tasks, a set of action selection rules is proposed to replace the agent's direct learning of action decisions. Heuristic decide is used to improve the convergence speed of the algorithm and enhance the interpretability of the model's action selection. Compared with the traditional MWKR, GA, PSO algorithms, the RL-based method in this paper shows great advantages in solution quality and efficiency on the real data-set of a quality inspection laboratory of a state grid corporation.
数量检验在电力计量中起着重要的作用。随着质检实验室数字化建设的发展,对质检任务调度算法提出了更高的调度效率和精度要求,以满足实际应用的多样化需求。与传统的作业车间调度问题(JSP)不同,质量检验任务调度问题(QISP)中样品与任务之间不存在固定的对应关系,这意味着调度的自由度更高。同时,质量检测任务具有串行、并行、互斥等更为复杂的约束条件,使得现有的调度算法无法直接应用。本文建立了一种基于强化学习(RL)的QISP方法。提出了一种新的调度特征表示方法,以充分描述质量检测任务的状态和样品设备的利用情况。针对稀疏奖励问题,提出了一种综合调度环境利用率和空闲时间的奖励函数。考虑到质量检测任务的非重复性和复杂约束,提出了一套动作选择规则来取代智能体对动作决策的直接学习。采用启发式决策提高了算法的收敛速度,增强了模型动作选择的可解释性。与传统的MWKR、GA、PSO算法相比,本文基于强化学习的方法在国有电网公司质量检测实验室的实际数据集上,在求解质量和效率方面具有很大的优势。
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引用次数: 0
Research on Distribution Network Planning Based on DE-PSO Hybrid Algorithm 基于DE-PSO混合算法的配电网规划研究
Pub Date : 2023-05-12 DOI: 10.1109/CEEPE58418.2023.10167261
Shengfeng Han, Wenbing Wang, Zheng Li, Zeng Fan
For the uncertainty of load, wind and solar power generation in distribution network planning., the method of using the k-means clustering method for processing is proposed for distribution network planning research. Firstly, the k-means clustering-based method is used to analyze renewable energy generation and load demand and establish a planning model with minimum net present value based on total investment cost; then, the distribution network planning model is solved using a hybrid algorithm; finally, the proposed method is applied to a 24-bus distribution system to verify its effectiveness and performance. The simulation results verify the effectiveness and practicality of the proposed planning method.
针对配电网负荷的不确定性,将风电和太阳能发电纳入配电网规划。,提出了采用k均值聚类方法进行处理的配电网规划研究方法。首先,采用基于k均值聚类的方法对可再生能源发电和负荷需求进行分析,建立基于总投资成本的净现值最小规划模型;然后,采用混合算法求解配电网规划模型;最后,将该方法应用于24总线配电系统,验证了该方法的有效性和性能。仿真结果验证了所提规划方法的有效性和实用性。
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引用次数: 0
A Half-Duplex Simultaneous Wireless Power and Data Transfer System and Its Design Method Based on Amplitude Shift Keying 基于移幅键控的半双工同步无线供电和数据传输系统及其设计方法
Pub Date : 2023-05-12 DOI: 10.1109/CEEPE58418.2023.10167374
Oi Xu, Junjun Deng, Lingbo Jiang, Na Fu, Shuo Wang
This paper proposes a half-duplex simultaneous wireless power and data transfer (SWPDT) system and its design method based on amplitude shift keying (ASK). Since the setup of steady data carrier takes several periods of data carrier, the data rate is limited and delay is introduced. Therefore, in this paper the transient process of transferring bit ‘0’ and ‘1’ is analysed in detail and the relationship of system parameters with delay time and data rate and is given. Compared with previous research, the system design method takes communication delay and data rate into account. A 180W laboratory prototype was built to verify the correctness of the analysis.
提出了一种基于移幅键控(ASK)的半双工同步无线供电与数据传输(SWPDT)系统及其设计方法。由于稳定数据载波的建立需要几个周期的数据载波,数据速率受到限制,并引入了延迟。因此,本文详细分析了传输0位和1位的瞬态过程,并给出了系统参数与延时时间和数据速率的关系。与以往的研究相比,系统设计方法考虑了通信延迟和数据速率。建立了一个180W的实验室样机来验证分析的正确性。
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引用次数: 0
Transient Stability Analysis and Stable Forms of the Grid-Connected VSC System with Limiter 带限位器的并网VSC系统暂态稳定分析及稳定形式
Pub Date : 2023-05-12 DOI: 10.1109/CEEPE58418.2023.10166797
Yiming Wang, Shi-Yun Xu, J. Bi, Shuyan Wang, Huiping Zheng, Xinyuan Liu
The limiter is extensively configured in the renewable energy conversion system, which is mainly used to limit the current or avoid a large deviation of fault trajectory from the rating value. However, existing studies have not fully revealed the key parameters of the transient stability of the renewable energy conversion system with the limiters and instability pattern. To fill the gap, a grid-connected VSC system including the current limiter and frequency limiter is first established in this paper. Secondly, the influence of key factors on the transient stability of grid-connected VSC systems with limiters is investigated to conclude the stability forms. The results show that there is no monotonous tendency of influence between transient stability characteristics and key factors, which is significantly different from the results of ignoring limiters. Additionally, due to the limiter, two new stable forms appear, that is, the power oscillation of the peak clipping and the stabilization at the new stable equilibrium point caused by the switch between the control modes. The relevant work in this paper provides a reference to understand the stable features and dynamic behaviors of the renewable energy conversion system.
限位器在可再生能源转换系统中广泛配置,主要用于限制电流或避免故障轨迹与额定值的较大偏差。然而,现有的研究并没有充分揭示具有限制器和不稳定模式的可再生能源转换系统暂态稳定的关键参数。为了填补这一空白,本文首先建立了一个包含限流器和限频器的并网VSC系统。其次,研究了影响限位器并网VSC系统暂态稳定的关键因素,得出了系统的稳定形式。结果表明,暂态稳定特性与关键因素之间的影响不存在单调趋势,这与忽略限制因素的结果有显著不同。此外,由于限位器的存在,出现了两种新的稳定形式,即削峰的功率振荡和控制模式切换引起的新稳定平衡点的稳定。本文的相关工作为了解可再生能源转换系统的稳定特征和动态行为提供了参考。
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引用次数: 0
SVG-Capacitor Joint Configuration Strategy for Photovoltaic Power Station Based on Comprehensive Cost Evaluation 基于综合成本评估的光伏电站svg -电容器联合配置策略
Pub Date : 2023-05-12 DOI: 10.1109/CEEPE58418.2023.10167375
Da Li, En Meng, Haixing Zheng, Tingzhe Pan
In the dual-carbon environment, the grid-connection of photovoltaic power stations has increasingly become a low-carbon and green means of new energy generation. However, the uncertainty of the output of photovoltaic power stations has brought an impact on the power grid that cannot be ignored. How to reasonably allocate reactive power is an important guarantee to alleviate this problem. Therefore, an SVG-capacitor joint configuration strategy for photovoltaic power station based on comprehensive cost evaluation is proposed in this paper. First, an equivalent model of the external power grid of photovoltaic power stations is established to simplify the calculation difficulty. Secondly, SVG-capacitor joint allocation strategy for photovoltaic power stations based on the comprehensive cost evaluation is proposed, which takes the minimum comprehensive annual cost of SVG-capacitor configuration as the optimization objective, and takes into account the constraints of grid operation safety, reactive power compensation demand, capacity constraints, etc. Finally, the particle swarm optimization algorithm is used to optimize the solution. The simulation results verify the effectiveness of this strategy
在双碳环境下,光伏电站并网发电日益成为一种低碳、绿色的新能源发电手段。然而,光伏电站输出的不确定性给电网带来了不可忽视的影响。如何合理配置无功功率是缓解这一问题的重要保证。为此,本文提出了一种基于综合成本评估的光伏电站svg -电容器联合配置策略。首先,建立光伏电站外网等效模型,简化计算难度;其次,提出了基于综合成本评价的光伏电站svg -电容器联合配置策略,以svg -电容器配置年综合成本最小为优化目标,同时考虑电网运行安全约束、无功补偿需求约束、容量约束等因素;最后,采用粒子群优化算法对解进行优化。仿真结果验证了该策略的有效性
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引用次数: 0
Sub-/Super-Synchronous Resonance Mitigation Method Based on Impedance Reshaping for Grid-Tied Black-Box Converters 基于阻抗重塑的并网黑箱变换器亚/超同步共振抑制方法
Pub Date : 2023-05-12 DOI: 10.1109/CEEPE58418.2023.10166877
Tao Zhang, Songhao Yang, Hongyue Ma, Z. Hao
Impedance reshaping effectively solves the sub-/super-synchronous resonance (SSR) problem of grid-tied converters. However, such a method requires a white-box model, i.e., the control model and parameters of converters are known, which is difficult to achieve in practical scenarios. To address this issue, this paper proposes a novel impedance reshaping method for black-box converters. Firstly, the impedance method is used to analyze the stability of the grid-tied black-box converters. Then, a novel impedance reshaping method is proposed based on an additional control loop. This method is simple and easy-implemented. In the case of SSR, only the input voltage signal of the phase-locked loop (PLL) needs to be compensated by the additional control. Finally, various time-domain simulations verify the effectiveness and robustness of the proposed method.
阻抗重塑有效地解决了并网变流器的亚/超同步谐振问题。然而,这种方法需要一个白盒模型,即变流器的控制模型和参数是已知的,这在实际场景中很难实现。为了解决这一问题,本文提出了一种新的黑箱变换器阻抗重构方法。首先,采用阻抗法对并网黑箱变换器的稳定性进行了分析。在此基础上,提出了一种基于附加控制回路的阻抗重构方法。该方法简单易行。在SSR的情况下,只有锁相环(PLL)的输入电压信号需要通过附加控制进行补偿。最后,通过各种时域仿真验证了该方法的有效性和鲁棒性。
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引用次数: 0
Pricing Strategy of PV-Storage-Charging Station Considering Two-Stage Market Bidding 考虑两阶段市场竞价的光伏-储能-充电站定价策略
Pub Date : 2023-05-12 DOI: 10.1109/CEEPE58418.2023.10166495
Hujun Li, F. Deng, Kaiying Li, Xiuli Wang, Jianan Si, Boning Yu, Chunzheng Tian, Meng Yang
In recent years, the construction level of electric vehicle (EV) charging infrastructure in China has been improved continuously. EV participating in the power market has been studied and the trading and energy scheduling mechanism of EV charging combined with storage has been proposed. The integrated PV-Storage-Charging (PSC) system proposed in this paper integrates the charging of EV and the energy scheduling of storage and PV output. At the same time, a two-stage market bidding and scheduling mechanism framework is designed in this paper to price EV charging at PSC station. EV charging is priced based on locational marginal pricing (LMP) and VCG method in day-ahead and real-time market, respectively. Cases studies are conducted to evaluate the energy scheduling performance of PSC station and proposed pricing method.
近年来,中国电动汽车充电基础设施建设水平不断提高。对电动汽车参与电力市场进行了研究,提出了电动汽车充电与储能相结合的交易与能量调度机制。本文提出的PV- storage - charging (PSC)集成系统将电动汽车充电与储能和光伏输出的能量调度相结合。同时,本文设计了一个两阶段的市场竞价与调度机制框架,对电动汽车充电站进行定价。电动汽车充电定价分别基于位置边际定价(LMP)和实时市场的VCG方法。通过实例对PSC站的能源调度绩效进行了评价,并提出了定价方法。
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引用次数: 0
Optimal Operational Strategy of Virtual Power Plant Considering the Participation in the Joint Markets of the Electricity Spot and Auxiliary Service Market 考虑电力现货市场和辅助服务市场共同参与的虚拟电厂最优运行策略
Pub Date : 2023-05-12 DOI: 10.1109/CEEPE58418.2023.10165998
Yancheng Ma, Yuge Chen, Jiajun Tang, Weiqiang Qiu, Xinyu Chen, Jianjun Li, Zhenzhi Lin
With the acceleration of the market-oriented reform of the power system, the construction and policy support of virtual power plant (VPP) projects have increased year by year and the participation in the electricity market, grid operation, and auxiliary service market of virtual power plants has been encouraged to promote the positive role of VPP in the rational allocation of user resources, increase operating income, maintain grid stability, and improve new energy consumption. However, the coordination method for VPP to participate in different markets has not been studied deeply and effectively yet. In this context, to coordinate the electricity market with diversified demand, aiming at the maximization of comprehensive revenue in diversified market-oriented decision-making of VPPs, an optimal operational strategy of the virtual power plant to participate in the joint markets of electricity spot and auxiliary service market is innovatively proposed. The case study on a certain VPP in Liandu district, Lishui city, Zhejiang province of China verifies the effectiveness and practicability of the proposed strategy.
随着电力体制市场化改革的加快,虚拟电厂(VPP)项目建设和政策支持逐年增加,鼓励虚拟电厂参与电力市场、电网运行和辅助服务市场,促进VPP在合理配置用户资源、增加运营收入、维护电网稳定、提高新能源消纳等方面发挥积极作用。然而,VPP参与不同市场的协调方法尚未得到深入而有效的研究。在此背景下,为协调多元需求的电力市场,以虚拟电厂多元化市场化决策中综合收益最大化为目标,创新性地提出了虚拟电厂参与电力现货市场和辅助服务市场联合市场的最优运行策略。以浙江省丽水市莲都区某VPP为例,验证了该策略的有效性和实用性。
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引用次数: 0
期刊
2023 6th International Conference on Energy, Electrical and Power Engineering (CEEPE)
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