H. Fedayi, Mikaeel Ahmadi, Abdul Basir Faiq, N. Urasaki, T. Senjyu
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引用次数: 4
摘要
随着可再生能源在电网中整合的增加和全球负荷需求的持续增长,现有输电线路在其负荷极限附近运行,可能会在一个小的干扰下发生电压崩溃。当知道系统崩溃的接近程度时,系统的稳定性和安全性可以得到改善。本文利用临界边界指数(Critical Boundary Index, CBI)分析和评估了IEEE 30总线测试网络在持续增加负荷条件下的电压稳定性;并随着电池储能系统(BESS)的不断集成而改进。BESS被认为是存储单元和电压源转换器的混合组合,具有可控的实功率和无功功率输出。利用安全约束优化潮流来优化安装的BESS的尺寸。从研究结果可以看出,系统的电压稳定性被控制在所有线路的可接受范围0.3 pu CBI以上,系统电压保持在0.9-1.1 pu的可接受和约束范围内。
BESS based voltage stability improvement enhancing the optimal control of real and reactive power compensation
With the increase in the integration of renewable energy resources in the grid and ongoing growth in load demand worldwide, existing transmission lines are operating near their loading limits which may experience voltage collapse in a small disturbance. System stability and security can be improved when the closeness of the system to collapse is known. In this research, voltage stability of IEEE 30 bus test network is analyzed and assessed under continuously increasing load condition, utilizing the Critical Boundary Index (CBI); and improved with continuous integration of battery energy storage system (BESS). BESS is considered to be a hybrid combination of storage units and voltage source converter to have a controllable real and reactive power output. Security constraint optimal power flow is utilized for optimally sizing the installed BESS. It is evident from the outcome of the research that the voltage stability of the system is controlled to be above the acceptable range of 0.3 pu CBI in all lines and the system voltage is kept within the acceptable and constrained range of 0.9–1.1 pu.
期刊介绍:
AIMS Energy is an international Open Access journal devoted to publishing peer-reviewed, high quality, original papers in the field of Energy technology and science. We publish the following article types: original research articles, reviews, editorials, letters, and conference reports. AIMS Energy welcomes, but not limited to, the papers from the following topics: · Alternative energy · Bioenergy · Biofuel · Energy conversion · Energy conservation · Energy transformation · Future energy development · Green energy · Power harvesting · Renewable energy