Overview - Huawei SUN2000-111KTL-NHM0 User Manual

SUN2000-111KTL-NHM0
User Manual

2.2 Overview

Description
SUN2000 solar inverters are grid-tied PV string inverters that convert the DC
power generated by PV strings into AC power and feed the power into the power
grid.
Characteristics
Smart
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Safe
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Networking
The inverter applies to grid-tied PV systems for commercial rooftop PV plants and
large PV plants. Typically, a grid-tied PV system consists of the PV string, inverter,
AC power distribution unit, and step-up transformer.
Figure 2-4 Networking
(A) PV string
(D) Transformer station
Supported Power Grid
The inverter supports the IT power grid.
Issue 09 (2023-12-18)
Ten independent maximum power point tracking (MPPT) circuits and 20 PV
string inputs. Flexible configuration of PV strings is supported.
Smart PV module self-learning: Automatically detects PV module failures,
helping rectify faults. Optimizes the working mode to obtain the optimal
working mode of the system.
Smart air cooling: Adjusts the fan speed based on the ambient temperature
and load to ensure the service life of fans and avoid frequent maintenance.
Smart I-V curve diagnosis: Implements I-V scanning and health diagnosis for
PV strings. In this way, potential risks and faults can be detected in time,
improving the plant operation & maintenance (O&M) quality.
Embedded DC and AC surge protection devices (SPDs): all-dimensional surge
protection
Embedded residual current monitoring unit: Immediately disconnects from the
power grid upon detecting that the residual current exceeds the threshold.
Copyright © Huawei Technologies Co., Ltd.
(B) SUN2000
(E) Power grid
2 Overview
(C) AC combiner box
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