基于多智能體一致性的微電網(wǎng)自適應(yīng)下垂控制策略
發(fā)布時(shí)間：2018-08-06 15:29
【摘要】：利用智能體間的分布式通信,提出了一種基于多智能體一致性的自適應(yīng)下垂控制策略,用于解決傳統(tǒng)下垂控制中頻率和電壓偏差、系統(tǒng)穩(wěn)定性和功率分配精度的問題。在傳統(tǒng)下垂控制基礎(chǔ)上,建立了有功功率分配、有功-頻率和無功-電壓的二階動(dòng)態(tài)模型。在考慮通信延遲的基礎(chǔ)上,利用無領(lǐng)導(dǎo)的一致性控制分布式電源的有功出力滿足傳統(tǒng)下垂控制的要求;利用含虛擬領(lǐng)導(dǎo)者的一致性修正傳統(tǒng)下垂控制中的頻率和電壓偏差;通過Lyapunov直接法驗(yàn)證了系統(tǒng)的漸進(jìn)穩(wěn)定性,故而解決了傳統(tǒng)控制中有功下垂系數(shù)對(duì)系統(tǒng)穩(wěn)定性的影響問題;分析了通信擾動(dòng)對(duì)控制結(jié)果和穩(wěn)定性的影響。通過仿真驗(yàn)證了所提策略的有效性。
[Abstract]:Based on the distributed communication between agents, an adaptive droop control strategy based on multi-agent consistency is proposed, which is used to solve the problems of frequency and voltage deviation, system stability and power allocation accuracy in traditional droop control. Based on the traditional droop control, the second order dynamic models of active power distribution, active power frequency and reactive power voltage are established. On the basis of considering the communication delay, the active power output of distributed power supply is controlled by leadless consistency to meet the requirements of traditional droop control, and the frequency and voltage deviation in traditional droop control is corrected by using the consistency of virtual leader. The asymptotic stability of the system is verified by the Lyapunov direct method, which solves the problem of the influence of the active power sag coefficient on the stability of the system, and analyzes the influence of the communication disturbance on the control results and stability. The effectiveness of the proposed strategy is verified by simulation.
【作者單位】： 上海交通大學(xué)電子信息與電氣工程學(xué)院;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51577115) 國家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2016YFB091300)~~
【分類號(hào)】：TM727
[Abstract]:Based on the distributed communication between agents, an adaptive droop control strategy based on multi-agent consistency is proposed, which is used to solve the problems of frequency and voltage deviation, system stability and power allocation accuracy in traditional droop control. Based on the traditional droop control, the second order dynamic models of active power distribution, active power frequency and reactive power voltage are established. On the basis of considering the communication delay, the active power output of distributed power supply is controlled by leadless consistency to meet the requirements of traditional droop control, and the frequency and voltage deviation in traditional droop control is corrected by using the consistency of virtual leader. The asymptotic stability of the system is verified by the Lyapunov direct method, which solves the problem of the influence of the active power sag coefficient on the stability of the system, and analyzes the influence of the communication disturbance on the control results and stability. The effectiveness of the proposed strategy is verified by simulation.
【作者單位】： 上海交通大學(xué)電子信息與電氣工程學(xué)院;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51577115) 國家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2016YFB091300)~~
【分類號(hào)】：TM727
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