Resonant investor in SPWM switching, used for a solar photovoltaic installation connected to the network

In the investigation of new methodologies and technologies, with the purpose of developing a major efficiency in the Electrical Systems of Power, whilst also finding methods to mitigate or minimize the disadvantages or risks to the environment; they have found ways to innovate new unconventional techniques of securing the electrical energy to implement to the electrical service network (to sell to the distribution network) or for autoconsumption (isolated systems of the network). In addition, due that in Ecuador is implementing a new program of efficient cooking, based on the replacement of kitchens and heaters Liquefied Petroleum Gas (LPG) per Efficient Electrical Systems and between other projects that significantly will change the curve of daily demand in the country, becoming a problem in regulating. For those two significant reasons, this research proposes an Inverter with Sinusoidal Pulse Width Modulation (SPWM), which transforms the energy received by the Photovoltaic generators to the voltage required to inject energy to the Low Voltage grid (LV), with acceptable levels of harmonic distortion (THD). Results show that the work has an acceptable performance. The design can be considered an alternative for current problems, making an analysis and calculation of necessary panels to implement this energy to the low voltage grid.