Vol.:(0123456789) 1 3 Journal of Electrical Engineering & Technology https://doi.org/10.1007/s42835-020-00428-3 ORIGINAL ARTICLE The New Control Scheme for the PV and Wind Hybrid System Connected to the Single Phase Grid Deekshitha S. Nayak 1  · R. Shivarudraswamy 1  · Florent Drossard 2 Received: 13 December 2018 / Revised: 9 October 2019 / Accepted: 8 April 2020 © The Korean Institute of Electrical Engineers 2020 Abstract The proposed system comprises of the hybrid (PV and wind) system for 1 kw is integrated with the single phase grid. The new control scheme sine pulse width modulation (SPWM) switching with a deadbeat based PI controller is designed to a DC/AC single phase inverter. This controller is used to pure sinusoidal output voltage with low total harmonic distortion (THD), fast dynamic response control techniques and to keep the power output constant if any variation in the input from the PV and wind system occurs, and the output voltage at the grid remains constant. Even when the load varies, the sinusoidal voltage output maintains 230V rms with 50 Hz frequency and also low THD is 2.54%. This controller proves the stifness and robustness characteristics for maintaining the output voltage at desired value with low harmonics. Keywords PV panel · Wind system · DC bus · Single phase inverter · Controller 1 Introduction With the constant growth of the global population, the requirements for electricity are increasing. The conventional energy sources like oil, gas and coal cause pollution to the environment. So the renewable energies are the alternative to this issue. The solar and wind energies are the most used as the source of energy because it is eco-friendly and avail- able in an abundant amount. However, these two energies are intermittent; in order to have a system that can provide electricity continuously, a hybrid system (wind and PV) is modelled. In industry, according to the IEEE Standard 519- 1992, the total harmonic distortion voltage (THD) should not exceed 5%. According to IEEE 1547, the inverter should be efcient and comply with the requirements of the har- monic control, interconnections, and safety standards [1]. In general, for generating a low distortion voltage output, there are many methods. One of them is the optimum fxed LC compensator, used to design for minimizing the expected value of the total harmonic distortion, which is desirable for maintaining the precise value of the power factor (PF). The hybrid series active power flters or series and shunt com- pensation can be employed for eliminating the harmonics when nonlinear loads are associated to an inverter. How- ever, the proper use of reactive shunt compensators and fl- ters may enhance the harmonic current content and voltage distortion in the feeder of the systems. The usage of pure capacitive compensators combined with source harmonics would degrade the power factor and overload the equipment. In the series active flters in two-level pulse width modu- lation based inverters have the disadvantages of harmonic noise of the higher order and extra switching losses due to higher frequency commutation. The dynamic performance of repetitive control approaches is low and requires the pre- cise values of the flter components, as well as the system stability remaining within a narrow operating range. The odd harmonic repetitive control scheme also has a disadvantage, in that the even harmonic residues arise in the tracking error. Besides, the sliding mode control has been confrmed to cope with uncertainty, but a chattering problem will cause during hardware implementation [1]. The selective harmonic eliminated PWM control and fuzzy logic control in inverter systems are extremely dependent on the accessibility of the memory space of a microcontroller during implementation. The load uncertainty is modeled using robust optimization method while the other uncertainties are modeled using the stochastic method [2]. * R. Shivarudraswamy swamysrs@redifmail.com 1 Manipal Institute of Technology, Manipal, India 2 Engineering School ESIGELEC, Rouen, France