DEVELOPMENT OF THE EXPERIMENTAL INSTALLATION FOR TESTING OF SOFTWARE-HARDWARE TOOLS OF MANAGEMENT OF MICRO ENERGY GRIDS OF LOCAL OBJECTS

Abstract

Development of the experimental installation for testing of the software and hardware tools of management of a photovoltaic system of a local facility connected to the grid, which, along with checking its operability, will allow analyzing the operation and adjusting the settings of systems with different parameters under different weather conditions, load schedules and operating modes. Method. Experimental research with preliminary justification of settings based on calculations and simulation data obtained in the Matlab software package. Results.  The  structure  and  experimental  installation  on  the  base  of  the  photovoltaic  system  with storage  battery  and  using  a  photovoltaic  battery  emulator  with  software  control  of  generation  and  load power were developed. The software modules of the system have been developed. According to the results of the simulation, the moments of time are determined when the operating mode is switched in the experimental setup. The experimental setup was tested in static and dynamic modes. Static tests were aimed at checking the functioning of the photovoltaic battery emulator in accordance with the specified solar radiation power and  the  temperature  of  the  photo  module,  as  well  as  checking  the  correctness  of  the  model  used  in  the program. Tests in statics with fixed parameters and in dynamics in the daily cycle, in general, confirmed the efficiency of the proposed solutions. Scientific novelty. The method of experimental research in the daily cycle of photovoltaic systems control with the use of software-controlled emulators of a photovoltaic battery and load with power and time scaling  was  developed.  This,  along  with  the  acceleration  of  the  experiment,  allows  us  to  estimate  the effectiveness  of  the  tested  systems  at  different  ratios  of  system  parameters  and  adjust  the  functioning algorithms.  Practical  importance.  The  proposed  solutions  for  the  implementation  of  the  experimental installation  allow  minimizing  material  costs  and  time  costs  in  the  process  of  testing  and  development  of software and hardware control tools of a photovoltaic system with storage battery.