We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Discrete-Time Optimal Control of Photovoltaic Grid-Connected Inverter Based on Particle Swarm Optimization.
- Authors
Xinrui Liu; Guangru Zhang; Dongsheng Yang; Tongyu Shi; Xusheng He
- Abstract
This paper is concerned with the problem of optimal control of photovoltaic grid-connected inverter. Firstly, the discretetime nonlinear mathematical model of single-phase photovoltaic grid-connected inverter in the rotating coordinate system is constructed by the Delta operator, which simplifies the control process and facilitates direct digital realization. Then, a novel optimal control method which is significant to achieve trajectory tracking for photovoltaic grid-connected inverter is developed by constructing a control Lyapunov functional against the difficulty of solving HJB (Hamilton-Jacobi-Bellman) partial differential equations. More importantly, the performance matrix of the controller which is very meaningful to many performance indicators of the system is also optimized via the particle swarm optimization. Finally, two numerical examples are provided to illustrate the effectiveness of the proposed method.
- Subjects
PLUG-in hybrid electric vehicles; DISCRETE-time systems; OPTIMAL control theory; PHOTOVOLTAIC power systems; ELECTRIC inverters; PARTICLE swarm optimization
- Publication
Mathematical Problems in Engineering, 2014, p1
- ISSN
1024-123X
- Publication type
Article
- DOI
10.1155/2014/249312