Hoymiles HMS-2000 - About Product; About Microinverter PV System; About Microinverter; About 4-In-1 Unit

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Single-phase Microinverter HMS-1800/2000
3. About Product
3.1 About microinverter PV system
HMS-2000/1800-4T is a single-phase grid-connected microinverter, which is an important part of a PV
system. The inverter converts the DC power generated by PV modules into AC power that meets the re-
quirements of the power grid, and feeds it into the power grid. A typical application scenario of micro-mi-
croinverters is shown as follows.
3.2 About microinverter
Microinverter is an inverter that tracks the maximum power point of each PV module separately, and then is
connected to the AC power grid after the conversion from DC to AC.
The maximum power tracking voltage range is wide and the module conguration is exible. There may be
voltage and current mismatch between modules. When a module fails or is shaded, it will only aect its own
power generation and have no impact on the whole system.
The microinverter can monitor the current, voltage, power output and power generation of each module to
realize module-level data monitoring.
In addition, the microinverter only carries a DC voltage of a few tens of volts, which reduces safety hazards to
the greatest extent.
3.3 About 4-in-1 Unit
Microinverters can be divided into 1-in-1, 1-in-2, 1-in-4, etc. depending on how many PV modules are connect-
ed to the microinverter. This means that the microinverter can connect to one module, two modules and four
modules respectively, as shown below.
About Product
A PV module
B Microinverter
C Grid-connected metering device
D Grid
Sub-1G
Microinverter
Sub-1G Sub-1G