陈光宇, 孙叶舟, 江海洋, 王宁, 康春雷, 张仰飞, 郝思鹏. 基于DIndRNN-RVM深度融合模型的AGC指令执行效果精准辨识及置信评估研究[J]. 中国电机工程学报, 2022, 42(5): 1852-1866. DOI: 10.13334/j.0258-8013.pcsee.202400
引用本文: 陈光宇, 孙叶舟, 江海洋, 王宁, 康春雷, 张仰飞, 郝思鹏. 基于DIndRNN-RVM深度融合模型的AGC指令执行效果精准辨识及置信评估研究[J]. 中国电机工程学报, 2022, 42(5): 1852-1866. DOI: 10.13334/j.0258-8013.pcsee.202400
CHEN Guangyu, SUN Yezhou, JIANG Haiyang, WANG Ning, KANG Chunlei, ZHANG Yangfei, HAO Sipeng. Research on Accurate Identification and Confidence Evaluation of AGC Command Execution Effect Based on DIndRNN-RVM Deep Fusion Model[J]. Proceedings of the CSEE, 2022, 42(5): 1852-1866. DOI: 10.13334/j.0258-8013.pcsee.202400
Citation: CHEN Guangyu, SUN Yezhou, JIANG Haiyang, WANG Ning, KANG Chunlei, ZHANG Yangfei, HAO Sipeng. Research on Accurate Identification and Confidence Evaluation of AGC Command Execution Effect Based on DIndRNN-RVM Deep Fusion Model[J]. Proceedings of the CSEE, 2022, 42(5): 1852-1866. DOI: 10.13334/j.0258-8013.pcsee.202400

基于DIndRNN-RVM深度融合模型的AGC指令执行效果精准辨识及置信评估研究

Research on Accurate Identification and Confidence Evaluation of AGC Command Execution Effect Based on DIndRNN-RVM Deep Fusion Model

  • 摘要: 随着电网结构的日益复杂,机组执行(automatic generation control,AGC)指令的精准性对电网在线调控的影响正逐渐增强。针对当前部分厂站对AGC指令跟踪效果不理想的实际问题,该文引入“深度学习”技术对AGC调控指令执行效果进行精准感知和评估。首先提出一种基于深度学习的AGC指令执行效果精准辨识框架,采用深度独立循环神经网络(deep independent recurrent neural network,DIndRNN)对机组执行指令的调节效果进行精准感知;其次,提出一种加快模型训练的预处理策略,基于机组运行历史数据通过分析不同输入属性间的关联特性,实现对模型输入属性的降维;进一步提高模型的收敛性和预测精度;最后提出一种对指令执行效果的不确定性评估方法,采用深度独立循环神经网络关联向量机(deep independent recurrent neural network relevance vector machine,DIndRNN-RVM)深度融合技术给出预测结果在给定出力偏差范围内的可信度,从概率的角度增强了预测结果的使用价值。算例采用真实电网数据进行仿真分析,计算结果表明,该文提出的辨识框架和模型优化方法能较为准确的感知机组执行指令的精度和执行结果的可信度。该文所述方法提高了电网对AGC指令执行效果的精准感知和预判,能够为AGC在线决策提供支撑。

     

    Abstract: With the increasing complexity of the power grid structure, the accuracy of automatic generation control (AGC) instructions executed by units is gradually increasing the impact on the online control of the power grid. In view of the fact that the effect of AGC command tracking in some stations is not accurate, this paper introduced "deep learning" technology to accurately perceive and evaluate the effect of AGC control command execution. Firstly, an accurate identification framework of AGC command execution effect based on deep learning was proposed, which used deep independent recurrent neural network (DIndRNN) to accurately perceive the effect of unit execution command. Secondly, a preprocessing strategy to speed up model training was proposed, which realized model input identification based on historical data of unit operation by analyzing the correlation characteristics between different input attributes. Finally, an uncertainty evaluation method for the effect of instruction execution was proposed, and the DIndRNN-RVM deep fusion technology was used to give the credibility of the prediction results within the given output deviation range, which enhanced the usability of the prediction results from the perspective of probability. The simulation results showed that the proposed identification framework and model optimization method could accurately perceive the accuracy of unit execution instructions and the reliability of execution results. The method proposed in this paper improves the power grid's accurate perception and prediction of AGC command execution effect, and can provide support for AGC online decision-making.

     

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