Performance evaluation and load demand management of grid connected hybrid wind-solar-battery system

Abstract

<div data-canvas-width="325.8629661358597">In this paper, Performance of the grid connected hybrid wind-solar energy</div><div data-canvas-width="38.15327554928442">system and load demand response of the battery integrated single phase voltage source inverter is presented. The wind energy conversion system is</div><div data-canvas-width="397.2481505744809">generating AC power and the solar PV system is generating DC power and</div><div data-canvas-width="240.71571255795203">both are integrating with battery in the common DC bus. The output voltage</div><div data-canvas-width="284.91922495464627">of the wind and solar system are controlling using dc-dc converters and it</div><div data-canvas-width="397.2100987704092">achieved more than the battery voltage. P&O algorithm used MPPT based</div><div data-canvas-width="188.4705855674259">voltage controller is driving the dc-dc converter with a reference voltage</div><div data-canvas-width="37.43029127192098">value of the battery. The single-phase full-bridge converter is converting DC</div><div data-canvas-width="397.2735184438622">to AC power and feeding into the standalone AC loads and distribution grid</div><div data-canvas-width="180.08650473694817">with IEEE 519 standard. The bi-directional converter is controlling the directions of power flow and it operates two modes namely inverter mode and rectifier mode based on a voltage level of the battery. In this bi-directional converter is controlling by the PI controller with the reference value of the DC bus voltage and load current. The power quality and demand response of the inverter is observing at various types of load conditions in standalone mode and grid-connected mode using experimental results.</div>

State of charge estimation for lithium-ion batteries connected in series using two sigma point Kalman filters

“…LIB is formed by many cells connected in series and parallel in order to get the desired voltage and power [1] as shown in Figure 1. The largest market for LIBs has traditionally been portable electronic devices, but in the near future there is an extensive growth in the demand for LIBs in transportation and electrical energy storages [2]. The state of charge (SoC) is an important input for balancing, energy and power calculations of LIB.…”

Grid integration of PMSG based wind energy conversion with battery storage system

“…In last few years permanent magnet synchronous generators (PMSG) are used in wind energy conversion system because it is a direct driven fully controlled machine [6][7][8][9][10][11]. The maximum power extracted from PMSG wind system with help of perturb and observe (P&O) method based maximum power point tracker (MPPT) [12][13][14][15][16][17][18].…”