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2022 Asian Conference on Frontiers of Power and Energy (ACFPE)最新文献

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Optimal Configuration of Energy Storage Power Station Considering Voltage Sag 考虑电压暂降的储能电站优化配置
Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952266
Ying Li, Hui Peng, Fan Yang, Shaowei Liang
The problem of voltage sag can be alleviated to some extent by building energy storage power station(ESPS). Therefore, it is necessary to consider the voltage sag level of sensitive users to conduct site selection and capacity allocation of ESPSs. Firstly, the voltage sag severity of sensitive users is evaluated, the sensitive users are graded and quantified, and the comprehensive location coefficient of each node is determined according to the annual economic loss of sensitive users. Secondly, the energy storage cost optimization model, which considers the cost of ESPS itself and the cost of voltage sag detection equipment, is constructed. Thirdly, based on the comprehensive location coefficient of each node, the improved particle swarm optimization algorithm(MPSO) is used to obtain the capacity optimal allocation scheme of ESPS. Finally, the simulation results of IEEE33-bus distribution system show that the method in this paper has good applicability in optimal configuration of ESPS considering voltage sag.
通过建设储能电站,可以在一定程度上缓解电压暂降问题。因此,电站选址和容量分配需要考虑敏感用户的电压暂降水平。首先对敏感用户电压暂降严重程度进行评价,对敏感用户进行分级量化,并根据敏感用户年经济损失确定各节点的综合区位系数;其次,构建了考虑ESPS自身成本和电压暂降检测设备成本的储能成本优化模型;第三,基于各节点的综合定位系数,采用改进粒子群优化算法(MPSO)得到ESPS的容量最优分配方案;最后,对ieee33总线配电系统的仿真结果表明,本文方法对考虑电压暂降的ESPS优化配置具有良好的适用性。
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引用次数: 0
Research on Carbon Emission Measurement Method Based on Carbon Emission Reduction of Power Grid Supply Chain 基于电网供应链碳减排的碳排放计量方法研究
Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952344
Yuan-Yuan Zhang, Shu Xia, Fan Yang
With the signing of the , countries around the world have paid special attention to the construction of green energy, green economy, carbon governance and other aspects and invested a lot of energy in it. China, as one of the important signatories, has made a commitment to the international community to “carbon peak and carbon neutrality”. By drawing on the theoretical methods of carbon emission reduction and carbon emission measurement in supply chains both domestic and abroad, this paper forms a calculation method which is suitable for checking the carbon emissions of the supply chain of power grid enterprises in China. The method is able to calculate and grasp the real carbon emissions of the supply chain of power grid enterprises, so as to enhance the basic ability of power grid enterprises in green transformation, to formulate green carbon emission reduction directions, to help the green transformation of energy supply chains, and to ultimately serve the national double carbon strategy.
随着《巴黎协定》的签署,世界各国对绿色能源、绿色经济、碳治理等方面的建设都格外重视,投入了大量的精力。中国作为重要签署国之一,向国际社会作出了“碳峰值与碳中和”的承诺。本文通过借鉴国内外关于供应链碳减排和碳排放计量的理论方法,形成了一种适合于中国电网企业供应链碳排放核算的计算方法。该方法能够计算和掌握电网企业供应链的真实碳排放量,从而增强电网企业绿色转型的基础能力,制定绿色碳减排方向,助力能源供应链绿色转型,最终服务于国家双碳战略。
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引用次数: 2
Regional Distributed Photovoltaic Short Term Power Prediction Method Based on Cluster Analysis and Stacking Ensemble Learning 基于聚类分析和叠加集成学习的区域分布式光伏短期功率预测方法
Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952286
Junhang Wu, Zhi Tang, Yi Gao, Lianbin Wei, Jin Zhou, Fujia Han, Junyong Liu
Accurate and reliable photovoltaic short term power prediction is of great significance to the improvement of photovoltaic consumption capacity, the day ahead scheduling and the safe and stable operation of the power grid. To ensure an accurate prediction, in this paper, a regional distributed photovoltaic short term power prediction method based on stacking ensemble learning and cluster analysis is proposed. In the proposed method, several weather patterns are firstly identified by using the K-means++ algorithm based on the historical data. Then, for each weather pattern, all the photovoltaic panels are clustered into several groups based on the k-Shape algorithm, where a prediction model for each photovoltaic cluster is established by employing the Stacking ensemble learning algorithm. Finally, based on the numerical weather forecast (NWP) of the forecast day, we select the best suited weather pattern and obtain the final prediction result by employing the trained prediction model under this weather pattern. The effectiveness of the proposed strategy is verified by the actual dataset.
准确、可靠的光伏短期功率预测对提高光伏消纳能力、提前调度和电网安全稳定运行具有重要意义。为了保证预测的准确性,本文提出了一种基于叠加集成学习和聚类分析的区域分布式光伏短期功率预测方法。该方法首先基于历史数据,利用k -means++算法对多个天气模式进行识别。然后,针对每种天气模式,基于k-Shape算法将所有光伏板聚类成若干组,其中采用堆叠集成学习算法建立每个光伏组的预测模型。最后,根据预报日的数值天气预报(NWP),选择最适合的天气模式,并利用该天气模式下训练好的预测模型获得最终的预测结果。通过实际数据集验证了所提策略的有效性。
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引用次数: 1
The Coordinated Planning of “Source-Load-Storage” Active Distribution Network under Low-carbon Economy 低碳经济条件下“源-负荷-蓄”主动配电网协调规划
Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952313
Panlong Jin, Zongchuan Zhou, Xue Feng, Zhiyuan Wang
The carbon peaking and carbon neutrality goals makes the distribution network develop towards low carbon in China, environmental protection and economy, and the demand for new energy power generation resources with zero carbon emission is more urgent. However, how to balance the low-carbon cost and economic cost and realize the scientific planning and access of multiple flexible resource forms such as “source”, “storage” and “load” to the active distribution network (ADN) remains to be solved. Therefore, a bi-level planning model of the ADN was developed, which aims at carbon cost and economy, considering multiple flexible resource access. In the upper level planning, the distributed generations (DGs) and energy storage systems (ESSs) are located and rated with the objective of economy. In the lower level planning, the DG, interruptible load, and ESS are co-optimized with the objective of reducing network loss, and the modified particle swarm optimization algorithm is proposed for solution. The case study results show that the improved solution model can reduce carbon emissions obviously, and ensure the lowest comprehensive cost and realize ADN low-carbon economic operation.
碳调峰和碳中和的目标使得配电网在中国向着低碳、环保、经济的方向发展,对零碳排放的新能源发电资源的需求更加迫切。然而,如何平衡低碳成本和经济成本,实现“源”、“储”、“负荷”等多种灵活资源形式对主动配电网(ADN)的科学规划和接入,仍是有待解决的问题。为此,建立了以碳成本和经济性为目标,考虑多种灵活资源获取方式的ADN双层规划模型。在上层规划中,以经济性为目标,对分布式发电系统和储能系统进行选址和评级。在下级规划中,以减少网络损耗为目标,对DG、可中断负荷和ESS进行协同优化,提出了改进的粒子群优化算法进行求解。案例研究结果表明,改进后的解决方案模型能明显降低碳排放,保证综合成本最低,实现ADN低碳经济运行。
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引用次数: 1
Low-voltage AC-DC hybrid distribution network for large-scale photovoltaic consumption Space-time Coordinated Optimization Method 大规模光伏消纳的低压交直流混合配电网时空协调优化方法
Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952186
Li Yue, Fu Yu, Bai Hao, Y. Zhiyong, He Xiaomeng, Jin Qinyuan
A large number of distributed photovoltaic grids have exacerbated the problems of voltage limit, three-phase imbalance and power reversal of the low-voltage distribution network, bringing challenges to the stable operation of the distribution network. Aiming at the problem of absorbing a high proportion of distributed photovoltaics, this paper proposes a space-time coordination based on Voltage Source Converter (VSC) and energy storage by exploiting the power regulation potential of low-voltage AC and DC distribution networks and energy storage. Optimization. Firstly, the power transfer characteristics of VSC and energy storage at the spatial and temporal levels are analyzed; secondly, with the goal of minimizing PV cut-off and network loss, and energy storage and VSC power as optimization variables, a low-voltage AC-DC hybrid distribution is established. Finally, taking a typical low-voltage AC-DC hybrid distribution network as an example, the validity of the proposed method is proved by simulation, and the photovoltaic capacity of the low-voltage distribution network is improved.
大量的分布式光伏电网加剧了低压配电网的限压、三相不平衡、功率反转等问题,给配电网的稳定运行带来了挑战。针对分布式光伏的高比例吸收问题,利用低压交直流配电网和储能的功率调节潜力,提出了一种基于电压源变换器(VSC)和储能的时空协调方案。优化。首先,从空间和时间层面分析了VSC的电力传输特性和储能特性;其次,以光伏截流和网损最小为目标,以储能和VSC功率为优化变量,建立了低压交直流混合配电网;最后,以一个典型的低压交直流混合配电网为例,通过仿真验证了所提方法的有效性,提高了低压配电网的光伏容量。
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引用次数: 0
Short-term load forecasting method based on deep learning under digital driving 数字驾驶下基于深度学习的短期负荷预测方法
Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952181
Guojun Xiong, Meng Zhu, Hong Fan, Haoran Hu, Zheng Cheng
Relying on the background of power grid digital drive, this paper uses the improved deep learning network model to analyze and predict the load energy consumption of complex systems. In order to provide a complete and reliable sample data set for the multi-layer network model, this paper uses normalization, mutual information and other methods to preprocess the data set, reduce the correlation among different data; At the same time, based on the error reciprocal method, the bidirectional long and short term memory network is combined with the XGboost network model to reduce the calculation error of the model. The simulation experiment is used the actual data set of a city in southern China. The result proves that the index MAPE of the Bi LSTM XGboost forecasting method is 6.15, which can realize the accurate load forecasting of the actual complex system.
本文以电网数字化驱动为背景,采用改进的深度学习网络模型对复杂系统的负荷能耗进行分析和预测。为了给多层网络模型提供完整可靠的样本数据集,本文采用归一化、互信息等方法对数据集进行预处理,降低不同数据之间的相关性;同时,基于误差倒数法,将双向长短期记忆网络与XGboost网络模型相结合,减小了模型的计算误差。模拟实验采用了中国南方某市的实际数据集。结果证明,bilstm XGboost预测方法的MAPE指数为6.15,能够实现对实际复杂系统的准确负荷预测。
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引用次数: 0
Demand model of single energy and integrated energy for user 用户单一能源和综合能源需求模型
Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952256
Pei Su, Huitao Niu, Lidong Wang, Hongyan Zhang, Han Fu, Peiyi Zhang
Clarifying the user's energy demand is the first step to develop integrated energy services. This paper collects multi-dimensional energy consumption data of users and builds an energy demand model for user. Firstly, users' energy consumption data is collected by the monitoring devices, authors identify and correct the abnormal data, and fill in the missing data. Secondly, authors unify the dimensions of different energy consumption data, construct consumption curves of different energies. The demands of different energies for user can be calculated by the areas enclosed by the energy consumption curve. Thirdly, based on different energy demands, the radar map can be obtained. The demand of integrated energy can be calculated by the areas of radar map. Finally, taking 6 users in central China as an example to verify the rationality of the method proposed in this paper.
明确用户的能源需求是发展综合能源服务的第一步。本文收集了用户的多维能源消耗数据,建立了用户的能源需求模型。首先,监测设备采集用户的能耗数据,对异常数据进行识别和修正,对缺失数据进行补全。其次,统一不同能源消费数据的维度,构建不同能源的消费曲线。用户对不同能源的需求可以通过能耗曲线围合的面积来计算。第三,根据不同的能量需求,获得雷达图。综合能量的需求可以通过雷达图的面积来计算。最后,以华中地区6家用户为例,验证了本文方法的合理性。
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引用次数: 0
Flicker Source Location and Responsibility Division Method Considering Flicker Power Fluctuation Characteristics 考虑闪变功率波动特性的闪变源定位与责任划分方法
Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952315
Ruize Sun, Yuanyuan Sun, Shulin Yin, Shukang Zhao, Guangze Meng, Xiaolei Hou
Aiming at the voltage fluctuation and flicker problem caused by renewable energy mass access, a flicker detection and flicker responsibility division method based on the flicker power are proposed in this paper. This method first uses probabilistic neural networks (PNN) and Hilbert-Huang transform (HHT) to get the characteristic information of fluctuation components in power system monitoring data, calculates the power of flicker to locate the flicker, and then proposes the flicker responsibility contribution degree. In addition, the dynamic time-scale calculation method is proposed to reduce the amount of calculation. Finally, the performance of the presented method is validated through Simulink simulation examples.
针对可再生能源接入引起的电压波动和闪变问题,提出了一种基于闪变功率的闪变检测和闪变责任划分方法。该方法首先利用概率神经网络(PNN)和Hilbert-Huang变换(HHT)获取电力系统监测数据中波动分量的特征信息,计算闪变功率对闪变进行定位,然后提出闪变责任贡献度。此外,为了减少计算量,提出了动态时标计算方法。最后,通过Simulink仿真实例验证了该方法的有效性。
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引用次数: 0
A Technical Design for Smart-grid to Realize both Low Voltage Ride Through and Anti-islanding Protection 实现低电压穿越和防孤岛保护的智能电网技术设计
Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952246
Wang Shiyu
Green energy has been an attractive and developing area for the whole world, the researchers are trying to tackle its drawbacks like uncertainty and effectiveness. This paper analyzes when the low voltage ride through and anti-islanding protection happened and why they can not coexist. By studying the reasons of voltage drop, the specific design was given in this paper, in which the detection of voltage and frequency can be done. A certain example also shown latter to prove the reliability and quality of the design, this paper also shows more possibilities of the design and its operating mode in other field.
绿色能源一直是全世界一个有吸引力的发展领域,研究人员正在努力解决其不确定性和有效性等缺点。本文分析了低压穿越和防孤岛保护在什么时候发生,以及它们不能共存的原因。本文通过对电压降原因的研究,给出了具体的设计方案,实现了对电压和频率的检测。最后通过实例证明了该设计的可靠性和质量,同时也展示了该设计在其他领域的更多可能性及其运行模式。
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引用次数: 0
Research on Power Optimal Control Strategy of Marine Diesel-storage 船用柴油机储能系统功率最优控制策略研究
Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952311
Jianbao Liu, Shuaijie Shan, Jia-Kun Gao, Zhongtian Zhang
In order to overcome the disadvantages of long regulation time and large overshoot in the traditional marine diesel power main network under complex operating conditions, a hybrid energy storage system is added to the main diesel power network in this paper, the charge and discharge power of the battery and the supercapacitor are changed by the power optimization control strategy. Using MATLAB/Simulink to build the simulation model of marine diesel-storage main network system, the analysis and simulation results show that the overshoot and regulation time of marine diesel-storage main network are obviously reduced after adopting the power optimal control strategy of hybrid energy storage system, at the same time, the charging and discharging power of battery and supercapacitor can be adjusted automatically according to different working conditions.
为了克服传统船用柴油主电网在复杂工况下调节时间长、超调量大的缺点,本文在柴油主电网中加入混合储能系统,通过功率优化控制策略改变电池和超级电容器的充放电功率。利用MATLAB/Simulink建立了船用柴油机储能主网络系统仿真模型,分析和仿真结果表明,采用混合储能系统功率最优控制策略后,船用柴油机储能主网络的超调量和调节时间明显减少,同时电池和超级电容器的充放电功率可根据不同工况自动调节。
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引用次数: 0
期刊
2022 Asian Conference on Frontiers of Power and Energy (ACFPE)
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