GB/T 41240-2022 in English
VALIDTest of household hybrid photovoltaic and storage converter
- Issued on:2022-03-09
- Implemented on:2022-10-01
- File Format:PDF
- Delivery:Via email within 5 business days
$418.00
《GB/T 41240-2022户用光储一体机测试》由TC564（全国微电网与分布式电源并网标准化技术委员会）归口，主管部门为中国电力企业联合会。
Introduction
Analysis of the core content of the standard
The GB/T41240-2022 standard has established a testing system for key equipment including photovoltaic simulators and energy storage battery simulators for household photovoltaic and energy storage devices with a voltage level of 220/380V, covering 42 test items in five categories including electrical performance and safety protection.
Comparison of key test items
| Test category | Core items | Test accuracy requirements | Reference standards |
|---|---|---|---|
| Electrical performance | Grid-connected efficiency, anti-islanding protection, charge and discharge conversion | Voltage sensor level 0.5 | NB/T32032 |
| Safety performance | Insulation strength, impulse voltage, partial discharge | Test current ≥32A | GB/T17627 |
| Electromagnetic compatibility | Conducted disturbance, radiated immunity | Frequency deviation <0.01Hz | GB/T17626 series |
Typical test case
Grid-connected operation efficiency test
It is necessary to test at 7 typical operating points in the 5%~100% load range, with the following requirements:
- PV→grid mode efficiency curve
- Energy storage→grid discharge efficiency
- Grid→energy storage charging efficiency
The test circuit needs to be configured with a grid simulator (THD<1.5%) and a data acquisition device (sampling rate ≥10kHz)
Standard implementation recommendations
Test environment construction
Requirements:
- Temperature 15~40℃ (fluctuation ±1℃)
- Altitude below 2000m (correction is required if exceeding)
- Grid THD<1.5%
Equipment selection guide
Key equipment requirements:
- Photovoltaic simulator: response time <20ms
- Anti-islanding device: inductor THD≤2%
- Measurement equipment: bandwidth≥10kHz
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