Coupling Constraint Behavior and Design Method for Two-Degree-of-Freedom in Series-Parallel Architecture Electric Energy Router

被引：2

作者：

Zhao, Xiaojun ^{[1
]}

Bai, Pengshuo ^{[1
]}

Wang, Xiaohuan ^{[1
]}

Zhang, Chunjiang ^{[1
]}

Guo, Xiaoqiang ^{[1
]}

Zhao, Qinglin ^{[1
]}

机构：

[1] Yanshan Univ, Dept Elect Engn, Key Lab Power Elect Energy Conservat & Motor Driv, Qinhuangdao 066004, Hebei, Peoples R China

来源：

IEEE TRANSACTIONS ON SMART GRID | 2024年 / 15卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Electric energy router; degree-of-freedom; coupling constraint; mode generator; flexible operation; CONSTANT POWER LOADS; STABILITY ANALYSIS; DC-MICROGRIDS; SYSTEMS; ATTRACTION; CONVERTERS; SQUARES; DOMAIN; SUM;

D O I：

10.1109/TSG.2023.3292827

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

For low-voltage distribution networks (LVDNs), the series-parallel architecture electric energy router (SPA-EER) has two obvious advantages under two-degree-of-freedom (TDF) control, that is, power flexible operation and up to 200% power transmission. However, there are coupling constraint behaviors between TDF, which will mutually limit their operation ranges. To this end, by analyzing simultaneous operation principles of active and reactive powers in SPA-EER, these coupling constraint behaviors are revealed, which is important for specifying the TDF operation ranges and promoting the safe operation for SPA-EER. Additionally, the effects of TDF on the maximum available active and reactive powers output by SPA-EER system are discussed, which can provide a basis for the mode selection of system. Based on the criterion of maximizing the utilization of renewable energy, a mode generator (MG) considering the actual powers of load, DC bus, LVND port, series converter and parallel converter is proposed to determine the suitable values for TDF, and then a MG-based TDF power flow flexible control (TDFPFFC) is developed to respond to demands of different operation modes. Finally, the simulation results are presented to verify the correctness of the theoretical analysis and the effectiveness of the proposed MG-based TDFPFFC.

引用

页码：1680 / 1693

页数：14

共 51 条

[1] DSOS and SDSOS Optimization: More Tractable Alternatives to Sum of Squares and Semidefinite Optimization [J].

Ahmadi, Amir Ali ;

Majumdar, Anirudha .

SIAM JOURNAL ON APPLIED ALGEBRA AND GEOMETRY, 2019, 3 (02) :193-230

[2] The SOC Based Dynamic Charging Coordination of EVs in the PV-Penetrated Distribution Network Using Real-World Data [J].

Akil, Murat ;

Dokur, Emrah ;

Bayindir, Ramazan .

ENERGIES, 2021, 14 (24)

[3]

[Anonymous], 2002, Control of Nonlinear Systems

[4]

[Anonymous], 2022, Sources of Greenhouse Gas Emissions

[5]

Bacha S, 2014, ADV TXB CONTR SIG PR, P55, DOI 10.1007/978-1-4471-5478-5_4

[6]

Brunton SL, 2019, DATA-DRIVEN SCIENCE AND ENGINEERING: MACHINE LEARNING, DYNAMICAL SYSTEMS, AND CONTROL, P1, DOI 10.1017/9781108380690

[7] Region of Attraction Estimation for DC Microgrids With Constant Power Loads Using Potential Theory [J].

Chang, Fangyuan ;

Cui, Xiaofan ;

Wang, Mengqi ;

Su, Wencong .

IEEE TRANSACTIONS ON SMART GRID, 2021, 12 (05) :3793-3808

[8]

Choi H., 2018, Transient stability analysis of power systems using Koopman Operators

[9]

Chow J. H., 2018, Power System Dynamics andStability, V2nd

[10]

Cousins Benjamin, 2017, Ph.D.dissertation,

← 1 2 3 4 5 6 →