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考虑通信延时的可再生能源与火力发电耦合系统无功控制优化OACSTPCD

Renewable energy and thermal power generation coupling system based on improved particle swarm reactive power optimization control

中文摘要英文摘要

在可再生能源与火力发电耦合系统中,风电出力波动和远端故障扰动都会引起系统电压越限.文章在考虑通信延时的基础上,以耦合系统各节点电压偏差为量化指标,分析了耦合系统无功控制对电压稳定性的影响,提出了一种以静止无功发生器(Static Var Generator,SVG)和风电机组作为无功调节资源的耦合系统双层无功控制优化策略.该策略上层为SVG无功调节设备,以耦合系统各节点电压偏差综合最小为目标,构建了系统整体功率因数优化模型.下层针对电压偏差大的节点,利用节点附近的风电机组为无功调节设备,以系统电压偏差和网损综合最优为目标,构建了风电机组无功优化模型,采用Ybus与LinWPSO相结合的算法求解优化模型,并得出风电机组无功参考值.案例仿真结果表明,文章所提的双层无功控制策略可充分发挥风电机组无功调节潜力,兼顾到耦合系统的电压波动和网损,减少可再生能源功率波动对耦合系统的扰动,提高了耦合系统的电压稳定性.

This thesis constructs a coupling system inactive adjustment model for system voltage output of wind power fluctuations in renewable energy and thermal power generation coupling systems,and constructing coupling system reactive modulation models,on the basis of considering communication delays,The voltage deviation is quantified index to analyze the effect of reactive power control on voltage stability in coupling system.A coupling system bilateral reactive control optimization strategy for fusion SVG and wind turbines as reactive modulated resources is proposed.The upper layer is based on SVG as an inactive adjustment device,and the system's overall power factor optimization model is constructed by the respective node voltage deviation.The lower layer is a node having a large voltage deviation.The wind turbine near the node is used as an inactive adjustment device.The system voltage deviation is optimal,and the wind turbine reactive optimization model is constructed,and the algorithm combined with Ybus and LinWPSO is used.Solve the optimization model and derive the wind power unit reactive reference value.The case simulation results show that the two-layer reactive policies mentioned in this paper make full exertion of the power-modulated potential of the wind and motor sets,which can take care of the voltage fluctuations and web damage of the coupling system,and reduce the disturbance of the renewable energy power fluctuations on the coupling system,improve coupling the voltage stability of the system.

孙峰;赵清松;王若瑾;戈阳阳;王晓东

国网辽宁省电力有限公司电力科学研究院,辽宁沈阳 110006国网辽宁省电力有限公司电力科学研究院,辽宁沈阳 110006||沈阳工业大学电气工程学院,辽宁沈阳 110870沈阳工业大学电气工程学院,辽宁沈阳 110870

能源与动力

风电出力波动电压越限通信延时无功控制

wind power fluctuationsvoltage limit violationcommunication delayreactive power control

《可再生能源》 2024 (001)

87-95 / 9

国家重点研发计划项目(2019YFB1505400).

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