TY - JOUR
T1 - Co-Design of the PV Array and DC/AC Inverter for Maximizing the Energy Production in Grid-Connected Applications
AU - Koutroulis, Eftichios
AU - Yang, Yongheng
AU - Blaabjerg, Frede
PY - 2019/3
Y1 - 2019/3
N2 - Grid-connected photovoltaic (PV) systems are currently developed by merging a PV array and a DC/AC inverter which are designed separately, without considering the impact of the PV array operational characteristics on the power losses of the DC/AC inverter. In this paper, a co-design technique is presented, where the optimal design parameters of the PV array and DC/AC inverter in a grid-connected PV system are calculated concurrently through a unified design process. The proposed technique enables to optimally match the PV array configuration and the DC/AC inverter structure. A study has been performed, where the PV systems synthesized by applying the proposed co-design technique are compared with the PV system configurations comprising PV arrays and DC/AC inverters that have been designed separately, through distinct optimization processes based on various alternative optimization objectives. The design results for two installation sites, with different meteorological conditions during a year, demonstrated that only the proposed co-design optimization technique is capable of ensuring the maximization of the annual energy production of the overall grid-connected PV system.
AB - Grid-connected photovoltaic (PV) systems are currently developed by merging a PV array and a DC/AC inverter which are designed separately, without considering the impact of the PV array operational characteristics on the power losses of the DC/AC inverter. In this paper, a co-design technique is presented, where the optimal design parameters of the PV array and DC/AC inverter in a grid-connected PV system are calculated concurrently through a unified design process. The proposed technique enables to optimally match the PV array configuration and the DC/AC inverter structure. A study has been performed, where the PV systems synthesized by applying the proposed co-design technique are compared with the PV system configurations comprising PV arrays and DC/AC inverters that have been designed separately, through distinct optimization processes based on various alternative optimization objectives. The design results for two installation sites, with different meteorological conditions during a year, demonstrated that only the proposed co-design optimization technique is capable of ensuring the maximization of the annual energy production of the overall grid-connected PV system.
KW - DC-AC power conversion
KW - Optimization methods
KW - Particle Swarm Optimization (PSO)
KW - Photovoltaic (PV) power systems
KW - Renewable Energy Sources (RES)
KW - renewable energy sources (RES)
KW - optimization methods
KW - particle swarm optimization (PSO)
UR - http://www.scopus.com/inward/record.url?scp=85055889033&partnerID=8YFLogxK
U2 - 10.1109/TEC.2018.2879219
DO - 10.1109/TEC.2018.2879219
M3 - Journal article
AN - SCOPUS:85055889033
SN - 0885-8969
VL - 34
SP - 509
EP - 519
JO - IEEE Transactions on Energy Conversion
JF - IEEE Transactions on Energy Conversion
IS - 1
M1 - 8519623
ER -