| 考虑电力数据传输失效的通信路由优化及协调调度 |
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| 引用本文：王艳1,孙名扬1,张琦兵2,庄卫金1,张希弘3,陈中3.考虑电力数据传输失效的通信路由优化及协调调度[J].电网与清洁能源,2021,37(7):34~43 |
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| 基金项目:国家重点研发计划资助项目（ 2017YFB0902600） ； 国家电网公司总部科技项目“基于宽频测量的电网振荡监测与定位技术研究及应用” |
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| 中文摘要:针对电力数据传输过程中存在的延时、丢包和误码等传输失效所导致的电网协调调度偏离实际值的问题，提出了一种基于量化电力数据传输偏差的最优通信路由优化算法，通过得到的数据在考虑预测误差和传输失效后运用模型预测控制进行电网的协调调度。首先，建立电力数据传输的延时、丢包和误码的有效性模型，并量化出在不同负载率、丢包率和误码率情况下的电力数据传输偏差。然后，将量化后的链路传输偏差作为路由算法的权重寻找最优通信路径。进而采用实时得到的电力数据在考虑传输失效以及预测偏差的基础上生成极端场景，运用模型预测控制算法求解分布式电源的出力，从而进行协调调度。最后通过算例验证了所提最小化数据传输偏差算法的有效性，并通过对负载率、丢包率和误码率的灵敏度分析，明确信息传输偏差对电网协调调度的影响。 |
| 中文关键词:传输失效 路由优化 量化数据偏差 极端场景 模型预测控制 |
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| Optimization of Communication Routing and Coordinated Dispatching Considering Power Data Transmission Failures |
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| Abstract:As coordination and optimization of the power grid often deviates from the actual value due to failures such as delay， packet loss and bit error in the power data transmission process， this paper proposes an optimal communication routing algorithm based on the quantified power data transmission deviation. And based on the data obtained and considering the prediction error and transmission failure， the model predictive control is used to coordinate and optimize the power grid. First， we establish the efficacy model of transmission delay， packet loss and bit error for the power grid data transmission and quantify the deviation of the power data transmission under different load， packet loss and bit error rates. Second， the quantified link transmission deviation is used as the weight of the routing algorithm to find out the optimal communication route. Furthermore， the power data obtained in real time is used to generate extreme scenarios considering transmission failure and prediction deviation. And the model predictive control algorithm is used to solve the output of distributed power sources， so as to coordinate and optimize the power grid. Finally， an example is used to verify the effectiveness of the proposed algorithm of the minimized data transmission deviation， and through the sensitivity analysis of load， packet loss and bit error rates， the influence of transmission failure on the coordination and optimization of power grid is clarified. |
| keywords:transmission failure routing optimization quantitative data deviation extreme scenarios model predictive control |
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