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随着电网中业务应用类型越发复杂,多源电网业务信息呈现出容量过大而价值密度低的特点,电网调度业务流程日趋繁琐。在此环境下,传统经验型调度模式工作效率低、协同性不强,难以满足现代电网调度运行需求。因此,提出了基于人工智能技术、依赖电力大数据驱动的调度决策支撑技术,通过智慧人机交互方法智能识别、判断、提取电力关键调度业务信息,并将不同的区域业务汇总于统一的电网智能调度平台。在平台的支撑下,有效简化并解决复杂的业务模式识别问题.将人工智能的技术优势与电网调度运行需求深度融合,从而更好地支撑电网调度、电力交易、事故异常处置等调控业务的智能应用。 相似文献
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本文将对基于模拟子站的智能电网调度控制系统集成调试方法进行简要分析。在新建变电站接入智能电网调度控制系统之前需要进行相关的调度主站调试工作,将变电站的运行信息发送到调度主站当中,增强电网调度控制系统基础数据的准确性。基于模拟子站的智能电网调度控制系统集成调试方法在变电站运行中发挥着重要作用,可以利用模拟子站模拟变电站设备的运行状态,对变电站与调度主站信息进行闭环控制。 相似文献
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随着我国社会的快速发展以及技术水平的提升,电网调度也随着发生了非常大的变化,智能电网得到了大范围的应用.对于智能电网运行来说,电网的调度具有非常重要的作用,直接影响着智能电网是否能够正常有序运行.本文主要阐述智能电网的相关特点和问题,同时对智能电网调度运行所面临的关键技术进行分析,希望能够对提升电网的调度效率和效益有所帮助,能够对智能电网的后期发展提供相应的经验借鉴. 相似文献
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在获取电网调度信号后,大多采用传统深度置信型辨识制度提取异常数据,只能获取低维数据包含的异常信息参量,使得最终数据提取结果曲线下面积(AUC)值较低。因此,为了提高电网调度信号异常数据提取结果的AUC值,提出基于数据挖掘算法的电网调度信号异常数据提取方法。应用独立成分分析算法处理电网调度信号,去除信号中的噪声信息。并对去噪后的信号进行小波分解,得到多个子信号数据集。运用数据挖掘算法中的聚类算法分析子信号数据集,得到数据样本特征,并在考虑属性特征密度指标的情况下完成数据特征分类,获取异常数据特征。最后,在支持向量数据描述的辅助下,检测出电网调度信号异常数据,汇总这部分数据即可完成异常数据提取。实验结果表明,所提方法应用后得到的异常数据提取结果AUC值总是大于0.85,证明了其具优越的应用效果。 相似文献
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《电子技术与软件工程》2016,(8)
基于动态监控测定系统和高级运算的智能电网经济运行得以实现。智能电网调度水平较高,可以对所收集的电网相关数据分析,合理调度电力设备的同时,还会结合动态检测数据对电量损失进行分析,从而优化调控电网,使电网运行的经济性得以提高。所以,积极构建智能电网是非常有意义的。基于此点,本文将结合智能电网调度实际案例,详细分析智能电网经济调度是如何运行的,希望对于推动智能电网良好发展有所作用。 相似文献
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为提升对区域电网调度系统维护信息对称性特征的识别效率及准确率,文中首先通过小波变换方法提取区域电网调度系统中维护信息的特征,然后运用模糊C均值算法分析特征数据的分布情况,并以此为基础,获取维护信息对称性故障特征的波形,根据Ucosθ波形特征识别结果,实现对区域电网调度系统中维护信息对称性特征的识别.实验结果表明:在不同... 相似文献
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Qiumin Dong Dusit Niyato Ping Wang Zhu Han 《Wireless Communications and Mobile Computing》2015,15(17):2049-2064
In smart grid, the real‐time pricing is implemented to motivate power consumers to change their consumption profile dynamically. With the real‐time pricing, a deferrable load can be scheduled by its scheduler optimally so that the power consumption cost will be minimized. However, when the data communication in smart grid suffers from interference, congestion, malfunction in devices, or even cyber attack, it is possible that the power price information cannot be transmitted successfully to the scheduler. As a result, the scheduling performance will be negatively affected by the suboptimal decision‐making because of incomplete power price information. To overcome this problem, a partially observable Markov decision process based deferrable load scheduling algorithm is proposed. Besides, the implementation of a standby alternative channel with the purpose to improve the reliability of the data communication in smart grid is also discussed in this paper. The numerical results show that the proposed partially observable Markov decision process based algorithm and the implementation of standby channel can effectively improve the scheduling performance when the scheduler lacks actual price information. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
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随着以智能电表为核心的智能电网快速发展,电力大数据吸引了用户、用电企业、政府的注意力.用电数据容易受到各种未知的随机干扰.探索了将自适应滤波技术引入电网信息监测.而由于用电负荷曲线复杂、不能给出一个具体的模型,利用量子递归神经网络构造了一个与模型无关的智能滤波器.最后提出了利用量子滤波器进行电力负荷预测以及利用测量误差的概率密度函数进行用户异常用电检测的设想. 相似文献
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Parya Hajimirzaee Mohammad Fathi Nooruldeen Nasih Qader 《Telecommunication Systems》2017,66(2):233-242
The next generation electrical power grid, known as smart grid (SG), requires a communication infrastructure to gather generated data by smart sensors and household appliances. Depending on the quality of service (QoS) requirements, this data is classified into event-driven (ED) and fixed-scheduling (FS) traffics and is buffered in separated queues in smart meters. Due to the operational importance of ED traffic, it is time sensitive in which the packets should be transmitted within a given maximum latency. In this paper, considering QoS requirements of ED and FS traffics, we propose a two-stage wireless SG traffic scheduling model, which results in developing a SG traffic scheduling algorithm. In the first stage, delay requirements of ED traffic is satisfied by allocating the SG bandwidth to ED queues in smart meters. Then, in the second stage, the SG rest bandwidth is going to the FS traffic in smart meters considering maximizing a weighted utility measure. Numerical results demonstrate the effectiveness of the proposed model in terms of satisfying latency requirement and efficient bandwidth allocation. 相似文献
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With the development of smart grid, residents have the opportunity to schedule their household appliances (HA) for the purpose of reducing electricity expenses and alleviating the pressure of the smart grid. In this paper, we introduce the structure of home energy management system (EMS) and then propose a power optimization strategy based on household load model and electric vehicle (EV) model for home power usage. In this strategy, the electric vehicles are charged when the price is low, and otherwise, are discharged. By adopting this combined system model under the time-of-use electricity price (TOUP), the proposed scheduling strategy would effectively minimize the electricity cost and reduce the pressure of the smart grid at the same time. Finally, simulation experiments are carried out to show the feasibility of the proposed strategy. The results show that crossover genetic particle swarm optimization algorithm has better convergence properties than traditional particle swarm algorithm and better adaptability than genetic algorithm. 相似文献
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Na Gai Kaiping Xue Bin Zhu Jiayu Yang Jianqing Liu Debiao He 《Digital Communications & Networks》2022,8(3):333-342
By integrating the traditional power grid with information and communication technology, smart grid achieves dependable, efficient, and flexible grid data processing. The smart meters deployed on the user side of the smart grid collect the users' power usage data on a regular basis and upload it to the control center to complete the smart grid data acquisition. The control center can evaluate the supply and demand of the power grid through aggregated data from users and then dynamically adjust the power supply and price, etc. However, since the grid data collected from users may disclose the user's electricity usage habits and daily activities, privacy concern has become a critical issue in smart grid data aggregation. Most of the existing privacy-preserving data collection schemes for smart grid adopt homomorphic encryption or randomization techniques which are either impractical because of the high computation overhead or unrealistic for requiring a trusted third party.In this paper, we propose a privacy-preserving smart grid data aggregation scheme satisfying Local Differential Privacy (LDP) based on randomized responses. Our scheme can achieve an efficient and practical estimation of power supply and demand statistics while preserving any individual participant's privacy. Utility analysis shows that our scheme can estimate the supply and demand of the smart grid. Our approach is also efficient in terms of computing and communication overhead, according to the results of the performance investigation. 相似文献