Online Optimal Reactive Power Control Strategy of PV Inverters

被引：162

作者：

Cagnano, Alessia ^{[1
]}

De Tuglie, Enrico ^{[2
]}

Liserre, Marco ^{[1
]}

Mastromauro, Rosa A. ^{[1
]}

机构：

[1] Politecn Bari, I-70125 Bari, Italy

[2] Politecn Bari, Dipartimento Ingn Ambiente & Sviluppo Sostenibile, I-74100 Taranto, Italy

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2011年 / 58卷 / 10期

关键词：

Ancillary service; decentralized controller; Lyapunov function; photovoltaic (PV) generation; power electronic interface; renewable sources; sensitivity theory; system losses; EQUIVALENT; ALLOCATION; DESIGN; STATE;

D O I：

10.1109/TIE.2011.2116757

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper proposes a decentralized nonlinear autoadaptive controller for reducing system losses by the optimal management of the reactive power supplied by the inverters of photovoltaic (PV) units. This ancillary service can be furnished on the base of standard needs or on voluntary basis. The control design is based on an optimization procedure involving the sensitivity theory in conjunction with the Lyapunov function and provides control laws acting as references of the PV inverter local controller. PV inverters must operate in a decoupled manner in order to provide the reactive power imposed by the control law and to transfer the active power produced by PV modules. The experiences and results conducted in an indoor laboratory as well as on an actual distribution network managed by ENEL Distribuzione S.p.A. demonstrate its effectiveness in reducing system losses.

引用

页码：4549 / 4558

页数：10

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