The designed PV powered induction heating system has achieved maximum power point tracking (MPPT) at resonance frequency and under varying solar irradiation conditions. PV simulator is used as a power source for induction heating. Thus, it is provided to monitor the controlled output power.
The input specifications of an inverter concern the DC power originating from the solar panels and how effectively the inverter can handle it. The maximum DC input voltage is all about the peak voltage the inverter can handle from the connected panels. The value resonates with the safety limit for the inverter.
As a key part of the induction heating power supply, the circuit structure and control strategy of the inverter circuit have always been a research focus. Li Sen et al. proposed a bipolar SPWM as the control strategy for the induction heating power inverter circuit .
1. Introduction With the adjustment of the national energy structure and the development of power electronics technology, induction heating power supplies have been widely used in many fields due to their precise temperature control, fast heating speed, and high energy utilization rate [1, 2, 3, 4].
Li Sen et al. proposed a bipolar SPWM as the control strategy for the induction heating power inverter circuit . Its inverter circuit has a simple topology, and the control strategy and implementation methods are relatively mature. However, the entire circuit cannot achieve “high voltage, low current” due to the limitations of the IGBT.
The operational temperature spectrum tells us about the ideal ambient temperature for the inverter to function properly. For best performance and reliability, we must confirm that the inverter can withstand the expected temperature range of the solar site. Some solar inverters are designed to handle certain levels of humidity.