Hydro plant system connected with Battery system controlled by Fuzzy logic using MATLAB

Introduction

MATLABSolutions demonstrate In this project we are going to design This is basic control system for switching process of battery to operate at different time according to the load and other resources. Here, two parameters of battery are taken into consideration that are voltage and battery soc ,Initial Soc of battery 60% and response time 30 second that means whenever soc reach to 60%,it indicates that battery is fully charged . This part is for voltage regulation of the battery this part will decide when voltage to increase and when to drop ,whenever it sense load power is not compensated by other resources then it provides pulse to the switches s1 and s2, In this input to the PID is the comparison value of vdc and reference value. PID works to achieve desired value. It provide switching pulses through s1 and s2 which in input to the mosfet. Battery management using soc control system here input is soc of the current situation ,In next step it is compared with some value of soc ,that whenever the soc reached its minimum it provides pulses to s1 and s2 for recharging of battery.

DC To AC controller used:-

With the hybrid voltage and current mode control, the inverter is controlled as a current source to generate the reference power in the grid-tied mode. its output power is expected to be sum of the power injected to the grid and the load demand P load + jQ load, which can be expressed as follows by assuming that the load is represented as a parallel RLC circuit . In the overall block diagram for the proposed unified control strategy, where the inductor current iLabc ,the utility voltage vg abc, the load voltage vCabc, and the load current iLLabc are sensed. And the three phase inverter is controlled in the SRF, in which, three phase variable will be represented by dc quantity. The control diagram is mainly composed by the inductor current loop, the PLL, and the current reference generation module. In the inductor current loop, the PI compensator is employed in both D- and Q-axes, and a decoupling of the cross coupling denoted byω0Lf/k PWM is implemented in order to mitigate the couplings due to the inductor. The output of the inner current loop dd q , together with the decoupling of the capacitor voltage denoted by 1/k PWM, sets the reference for the standard space vector modulation that controls the switches of the three-phase inverter. It should be noted that k PWM denotes the voltage gain of the inverter, which equals to half of the dc voltage in this paper.