Energy storage inverter low voltage parallel technology

What are the control strategies of parallel inverter with and without communication?

In the recent years, the control strategies of parallel inverter with and without communication like current accretion control, current distribution control, droop control addressed in the literature with its merits and demerits are summarized in Table 1.

What is a parallel inverter?

The parallel inverters are destined to achieve certain attributes such as proper current distribution, voltage regulation, accurate load sharing and synchronization of frequency, amplitude and phase at the inverter output for qualitative, reliable and stable operation of the system .

Does a parallel processing inverter control system compensate for sudden load changes?

Although parallel processing inverter control system proposed in the literature compensates the current harmonics and imbalances for sudden load changes suffers from serious disadvantage of transient response and are restricted to low resistive networks.

Are parallel inverters better than synchronized integration to grid?

Despite the enigma of phase difference between the parallel inverters and synchronized integration to grid, parallel operation of inverters proved to be prerogative in terms of low current ripple, modularity, increased power quality, improved thermal management and easy maintenance .

What is active load sharing & grid oriented control in parallel inverter?

The active load sharing techniques are the first of its kind that needs communication link for the control of parallel inverter. The grid oriented control is voltage mode control in which the real and reactive power besides stability of the bus system whose local references are modified taking into account the bus parameters like system impedance.

What is a parallel inverter control mechanism?

The parallel inverter control mechanism aims at achieving regulated voltage and power besides accurate power share which depends on active load/current sharing. The control strategies for the parallel inverter control are aforementioned in the literature as active load sharing techniques.