Testing code for power converter of electrochemical energy storage system
1 Scope
This standard specifies the testing items, testing conditions, testing devices, testing procedures, etc. for power conversion system (PCS) of electrochemical energy storage system.
This standard is applicable to the low-voltage three-phase PCSs with electrochemical cells as energy storage carriers, with the DC side voltage not exceeding 1,000V.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2423.1 Environmental testing for electric and electronic products - Part 2: Test methods - Tests A: Cold
GB/T 2423.2 Environmental testing for electric and electronic products - Part 2: Test methods - Tests B: Dry heat
GB/T 2423.3 Environmental testing for electric and electronic products - Part 2: Testing method - Test Cab: Damp heat, steady state
GB/T 2423.4 Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat, cyclic (12h+12h cycle)
GB/T 3859.1 Semiconductor converters - General requirements and line commutated converters - Part 1-1: Specification of basic requirements
GB/T 4208 Degrees of protection provided by enclosure (IP Code) (IEC 60529:2001)
GB 4793.1 Safety requirements for electrical equipment for measurement, control and laboratory use - Part 1: General requirements
GB 4824 Industrial, scientific and medical (ISM) radio-frequency equipment - Disturbance characteristics - Limits and methods of measurement
GB/T 7251.1 Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies
GB/T 12325 Power quality - Deviation of supply voltage
GB/T 13422 Semiconductor converters - Electrical test methods
GB/T 14549 Quality of electric energy supply - Harmonics in public supply network
GB/T 15543 Power quality - Three-phase voltage unbalance
GB/T 15945 Power quality - Frequency deviation for power system
GB/T 17626.2 Electromagnetic compatibility - Testing and measurement techniques - Electrostatic discharge immunity test
GB/T 17626.3 Electromagnetic compatibility - Testing and measurement techniques - Radiated radio-frequency, electromagnetic field immunity test
GB/T 17626.4 Electromagnetic compatibility - Testing and measurement techniques - Electrical fast transient/burst immunity test
GB/T 17626.5 Electromagnetic compatibility - Testing and measurement techniques - Surge immunity test
GB/T 17626.6 Electromagnetic compatibility - Testing and measurement techniques - Immunity to conducted disturbances, induced by radio-frequency fields
GB/T 17626.15 Electromagnetic compatibility - Testing and measurement techniques - Flickermeter - Functional and design specifications
GB/T 20840.2 Instrument transformers - Part 2: Additional requirements for current transformers
GB/T 20840.3 Instrument transformers - Part 3: Additional requirements for inductive voltage transformers
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
power conversion system; PCS
device connected between the battery system and the grid (and/or load) in an electrochemical energy storage system to achieve bi-directional conversion of electrical energy
3.2
constant current charge
charge during which the current remains constant
3.3
constant voltage charge
charge during which the voltage remains constant
3.4
stabilized current precision
ratio between the maximum fluctuation value and set value of the output current of a PCS when its DC side output current remains stable at any value within its rating range, with the battery energy storage system in a constant current charge state
3.5
stabilized voltage precision
ratio between the maximum fluctuation value and set value of the output voltage of a PCS when its DC side output current varies within its rating range and its output voltage remains stable at any value within the regulable range, with the battery energy storage system in a constant voltage charge state
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Testing conditions
5 Testing devices
6 Testing items
Annex A (Informative) Test records
Annex B (Normative) Determination method for response time and control precision of set power value control
Annex C (Normative) Test rules
