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集成VSG頻率調(diào)節(jié)與經(jīng)濟(jì)調(diào)度的微網(wǎng)分布式優(yōu)化

來源：電工電氣發(fā)布時(shí)間：2024-05-08 10:08 瀏覽次數(shù)：562

集成VSG頻率調(diào)節(jié)與經(jīng)濟(jì)調(diào)度的微網(wǎng)分布式優(yōu)化

楊鼎¹，余飏²，孫佳航³，李亮楷³

(1 中節(jié)能(五峰)風(fēng)力發(fā)電有限公司，湖北宜昌 443000；

2 中國三峽建工（集團(tuán)）有限公司，四川成都 610000；

3 三峽大學(xué) 電氣與新能源學(xué)院，湖北宜昌 443002)

摘要：在通信受限的情況下如何對(duì)低慣量孤島運(yùn)行的微網(wǎng)同時(shí)進(jìn)行頻率調(diào)節(jié)和綜合經(jīng)濟(jì)調(diào)度，是目前需要解決的難點(diǎn)。建立了含多類型電源虛擬同步機(jī)(VSG)的微網(wǎng)調(diào)度控制模型，提出了一種集成頻率調(diào)節(jié)與綜合經(jīng)濟(jì)調(diào)度的分布式優(yōu)化算法，來同時(shí)實(shí)現(xiàn)微網(wǎng)中的頻率調(diào)節(jié)和經(jīng)濟(jì)調(diào)度。在綜合考慮各類電源 VSG 成本和收益以及微網(wǎng)整體慣量和備用容量需求的基礎(chǔ)上，提出了一個(gè)分布式經(jīng)濟(jì)調(diào)度問題，該問題最小化了各類型 VSG 參與頻率調(diào)節(jié)所產(chǎn)生的綜合成本并提高了微網(wǎng)在擾動(dòng)下頻率的穩(wěn)定運(yùn)行能力；在考慮微網(wǎng)逆變器的動(dòng)態(tài)特性的基礎(chǔ)上重構(gòu)優(yōu)化問題，利用事件觸發(fā)通信在線感知和補(bǔ)償供需失衡，解決了最優(yōu)調(diào)度問題。仿真結(jié)果表明，所提方法能夠避免跨時(shí)間尺度的層間協(xié)調(diào)，提高系統(tǒng)的慣量、調(diào)頻能力以及經(jīng)濟(jì)性，并增強(qiáng)對(duì)短期通信故障的魯棒性。

關(guān)鍵詞： 虛擬同步機(jī)；頻率調(diào)節(jié)；經(jīng)濟(jì)調(diào)度；分布式優(yōu)化算法；孤島微網(wǎng)

中圖分類號(hào)：TM727 ；TM734 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2024)04-0034-09

Distributed Optimization of Microgrid Integrating VSG Frequency

Regulation and Economic Dispatch

YANG Ding¹, YU Yang², SUN Jia-hang³, LI Liang-kai³

（1 China Energy Conservation (Wufeng) Wind Power Company, Yichang 443000, China;

2 China Three Gorges Construction Engineering Corporation, Chengdu 610000, China;

3 College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China）

Abstract: In the case of limited communication, how to carry out frequency regulation and comprehensive economic dispatch of microgrids operating in low inertia islands at the same time is a difficult point to be solved. In this paper, a microgrid dispatch control model establishment of virtual synchronous generator (VSG) a distributed optimization algorithm integrating frequency regulation and integrated economic scheduling is proposed to realize frequency regulation and economic dispatch in microgrid at the same time. A distributed economic dispatching problem that based on a comprehensive consideration of the costs and benefits of VSG of various power sources and the overall inertia and reserve capacity requirements of microgrids, minimizing the comprehensive cost caused by various VSG types participating in frequency regulation and improves the stable operation capability of microgrid under frequency disturbance. The optimal dispatch problem is then solved by considering the dynamic characteristics of microgrid inverters, the optimization problem is reconstructed, and bying event-triggered communication online perception and compensation for supply and demand imbalances. The simulation results show that the proposed method is able to avoid interlayer coordination across time scales, improve the inertia, frequency regulation ability and economy of the system, and enhance the robustness to short-term communication faults.

Key words: virtual synchronous generator; frequency regulation; economic dispatch; distributed optimization algorithm; isolated island microgrid

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集成VSG頻率調(diào)節(jié)與經(jīng)濟(jì)調(diào)度的微網(wǎng)分布式優(yōu)化