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首页> 外文会议>2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies >Novel AGC strategy considering communication failure possibility for interconnected power grids
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Novel AGC strategy considering communication failure possibility for interconnected power grids

机译：考虑互连电网通信故障可能性的新型AGC策略

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摘要

The conventional automatic generation control (AGC) strategy only takes the economic factors into consideration. However, for interconnected power grids, under the condition of communication failure, there will be high risk that the AGC control signal be blocked and then some AGC units will not adjust the generating power following the load fluctuation due to the interrupt of the control signal. In this paper, the strategy of economic dispatch (ED) as well as load frequency control (LFC) has been investigated and a novel AGC strategy considering the communication failure possibility has been proposed. The ED control of the novel AGC strategy is designed to drains the power margin of those AGC units with high risk of communication failure according to the load forecasting and the evaluation of communication system. While the LFC strategy of the novel AGC strategy is designed to employ those AGC units with low risk of communication failure to balance the unpredictable short-term load fluctuation. As a result, the communication failure would cause slightest affect to AGC. The IEEE 118-bus benchmark system is employed to verify the effectiveness of the novel AGC strategy, and the simulation results indicate that, the novel control strategy can improve the dynamic performance, stability as well as economic performance of AGC under the condition of communication failure. It has excellent economy and engineering application value.
机译：传统的自动发电控制（AGC）策略仅考虑经济因素。然而，对于互连的电网，在通信失败的情况下，将存在AGC控制信号被阻塞并且随后由于控制信号的中断而导致的一些AGC单元将不会随着负载波动而调整发电功率的高风险。本文研究了经济调度（ED）和负荷频率控制（LFC）策略，并提出了一种考虑通信故障可能性的新型AGC策略。新型AGC策略的ED控制旨在根据负荷预测和通信系统评估来消耗那些具有高通信故障风险的AGC单元的功率裕度。虽然新颖的AGC策略的LFC策略旨在使用通信故障风险较低的AGC单元来平衡不可预测的短期负载波动。结果，通信故障将对AGC造成最小的影响。仿真结果表明，该新型控制策略能够在通信失败的情况下提高AGC的动态性能，稳定性和经济性，并通过IEEE 118总线基准系统验证了该AGC策略的有效性。 。具有优良的经济性和工程应用价值。

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