MITIGATION OF VOLTAGE UNBALACE IN RURAL LOW VOLTAGE NETWORKS USING SINGLE-PHASE BESS INVERTERS
MITIGATION OF VOLTAGE UNBALACE IN RURAL LOW VOLTAGE NETWORKS USING SINGLE-PHASE BESS INVERTERS
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使用单相 BESS 逆变器缓解农村低压网络中的电压不平衡
DOI：
10.1049/icp.2021.1998
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Mexis I
中科院分区：
文献类型：
--
作者：
Mexis I
单相设备在配电系统中的渗透率越来越高，如光伏（PV）逆变器和电动汽车（EV）充电器，可能会导致电压不平衡水平的增加，从而导致对配电系统和连接到它的设备的不利影响。本研究工作旨在控制单相电池储能（BESS）单元，以减轻不平衡条件。单相负载需求采用真实的数据建模，电压不平衡采用IEC 61000-2-2中定义的“电压不平衡系数”量化。对BESS装置进行了详细建模，包括主要电气部件和控制系统。BESS逆变器被控制以提供负载的有功和无功功率需求，从而限制网络中的不平衡水平。每个BESS的操作点也受到监控，以避免机组过载。在有和没有BESS的情况下，在各个位置监控电压不平衡系数，并根据1分钟分辨率的负载需求测量值，考虑实际操作条件评估拟议控制系统的影响。
The increasing penetration of single-phase equipment in the distribution system, such as photovoltaic (PV) inverters and electric vehicle (EV) chargers, may cause an increase of voltage unbalance levels, thus leading to detrimental effects on the distribution system and the equipment connected to it. This research work aims to control single-phase battery energy storage (BESS) units to mitigate unbalance conditions. Single-phase load demands are modelled using real data and voltage unbalance is quantified by using the ‘voltage unbalance factor’ as defined in IEC 61000-2-2. The BESS units are modelled in detail including the main electrical components and the control system. The BESS inverters are controlled to supply active and reactive power demand of the load, thus limiting the unbalance levels in the network. The operating point of each BESS is also monitored to avoid overloading of the units. Voltage unbalance factor is monitored at various locations, without and with the BESSs, and the impact of the proposed control system is assessed considering realistic operating conditions based on measurements of load demand with a 1-minute resolution.
基于测量的不平衡研究的概率家庭负荷模型
DOI：
--
发表时间：
2016
期刊：
2016 Electric Power Quality and Supply Reliability (PQ)
影响因子：
--
作者：
F. Möller;Jan Meyer
通讯作者：
Jan Meyer
DOI：
--
发表时间：
2013
期刊：
2013 IEEE International Symposium on Industrial Electronics
影响因子：
--
作者：
Yongheng Yang;F. Blaabjerg
通讯作者：
F. Blaabjerg
影响因子：
3.2
作者：
Ioannis Mexis;G. Todeschini
通讯作者：
Ioannis Mexis;G. Todeschini