Experimental investigation on the control strategy of split source inverter for grid‐connected wind power generation system

Abstract

The utilization of an impedance network in power electronic applications overcame traditional two‐stage converters' drawbacks, including a dc‐dc and dc‐ac stage. A well‐designed impedance‐based converter shuns the necessity of multiple network stages that, in turn, enhance operational performance and reliability. The split source inverter (SSI) belongs to such a single‐stage system that consists of an impedance network with a voltage source inverter. The work's primary purpose is to explore the performance of grid‐connected SSI in the application of wind energy systems. A novel peak power tracking controller is proposed for the SSI‐based wind energy systems for tracking the maximum power available in the wind. The grid‐side controller's current regulator is modified to sense the intermittent wind's perturbation and to regulate the SSI output current. The theoretical analysis is validated by simulation, and different case studies are analyzed by considering the mutual effects of SSI and variable wind speed. A laboratory prototype is designed for the experimental investigation of the SSI that consists of a 5‐kVA three‐phase grid‐tied SSI and wind emulator prototype. A field‐programmable gate array (Xilinx) is used to program the control algorithm. Different test cases are analyzed experimentally to prove the robustness of the proposed controller.

Simplified three‐phase split‐source inverter for PV system application controlled via model‐predictive control

“…Depending on the power balance between the input and the output power of the SSI, the input PV power should equal the output power from the SSI to the grid. So, the dynamic equation of the energy for the DC-side capacitor is (23). The SSI and filter power losses are neglected.…”

Intelligent power control of wind conversion system based on Takagi–Sugeno fuzzy model

“…In this perspective, wind energy is the most accessible and adaptable to decentralized production since it offers the possibility of properly producing electricity and is less dependent on resources provided that its natural and, sometimes, random fluctuations are accepted. 1 Accordingly, ameliorating the efficiency of WCS has become a stimulating research topic that has prompted researchers to focus on it. The automated control in the WCS can be done either mechanically by changing the angles of the blades or electrically.…”

“…In other words, the current energy situation, which is characterized by impoverished fossil fuel reserves besides the warm of the planet partly due to greenhouse gas emissions, pushes us to search alternative energy solutions. In this perspective, wind energy is the most accessible and adaptable to decentralized production since it offers the possibility of properly producing electricity and is less dependent on resources provided that its natural and, sometimes, random fluctuations are accepted 1 …”

An enhanced master–slave control for accurate load sharing among parallel standalone AC microgrids

“…Hence, accurate load sharing of parallel operated VSIs is an extensive research area. Further, there are numerous reasons to run VSIs parallel for accurate load sharing because high‐current power electronic devices are limited 6,7 . In addition, parallel operating VSIs provide system redundancy and high reliability, which is crucial for critical consumers due to arbitrary fluctuating load at the distribution level 8,9 …”

“…Further, there are numerous reasons to run VSIs parallel for accurate load sharing because high-current power electronic devices are limited. 6,7 In addition, parallel operating VSIs provide system redundancy and high reliability, which is crucial for critical consumers due to arbitrary fluctuating load at the distribution level. 8,9 In the literature, there are two main types of load sharing schemes presented, 6,[10][11][12][13][14][15] namely, with and without communication schemes.…”