JB/T 6939.1-2004 Controllers for off-grid wind turbines Part 1: Technical conditions
Some standard content:
ICS27.180
F11
JB
Machinery Industry Standard of the People's Republic of China
JB/T6939.1-2004
replaces JB/T6939.1- 1993
Controller for off-grid wind turbines
Part 1: Technical conditions
Controllerofoff-gridwindturbinegeneratorsystemPartl: Technicalcondition
Released on 2004-02-10||tt ||2004-06-01 Implementation
Foreword issued by the National Development and Reform Commission of the People's Republic of China
Scope
Normative reference documents
2
3 Terms and definitions
Abbreviations
Classification and basic parameters of controllers
5
5.! Classification of controllers
5.2 Controller models..
5.3 Basic parameters of controllers,
Technical requirements..
6
6.1| |tt||6.2
6.3
Performance requirements
Structural requirements,
Appearance requirements
Test methods
8||tt| |Inspection rules.
8.1
8.2
8.3
Inspection classification
Factory inspection
Type inspection
Mark, Packaging, transportation, storage
9
9.1
9.2
9.3
9.4
9.5
10||tt ||Logo
Instructions for use
Packaging,
Transportation
Storage
Quality guarantee period
item
times| |tt||JB/T6939.1—2004
JB/T6939.1—2004
Foreword
JB/T6939 "Controller for Off-grid Wind Turbine Sets" is divided into Two parts: Part 1: Technical conditions:
- Part 2: Test methods.
This part is part 1 of JB6939.
This part replaces JB/T6939.1-1993 "Technical Conditions for Controllers for Small Wind Turbine Sets". When revised, it refers to GB17646-1998 "Safety Requirements for Small Wind Turbine Sets" and the German Lloyd Wind Turbine Set. Certification specifications and other standards. Compared with JB/T6939.1-1993, the main changes in this part are as follows: - 3.1, 4.2, 4.5, 4.6, and 4.8 in JB/T6939.1-1993 have been modified, and program control type control has been added to each corresponding clause. Related content of the controller:
According to the currently used battery types, the corresponding charging performance terms have been added: - The classification and basic parameters of the controller in Chapter 5 and 6.1.8 in Chapter 6 Technical Requirements have been added. , 6.1.9, 6.1.11, 6.1.16~6.1.206.2 and 6.3 content,
This part is proposed by China Machinery Industry Federation. This part is under the jurisdiction of the National Wind Machinery Standardization Technical Committee. This part is drafted by the Hohhot Branch of the Chinese Academy of Agricultural Machinery Sciences. The main drafters of this part: Guo Liheng and Li Qingshao. The previous versions of the standard replaced by this part are: JB/T 6939.1-1993.
1Scope
JB/T6939.1-2004
Controllers for off-grid wind turbines Part 1: Technical conditions This part specifies the terms and definitions of charging controllers for off-grid wind turbines, classification of controllers, basic parameters, and technical requirements , inspection rules, marking, packaging, transportation and storage. This section applies to charging controllers for wind turbines whose swept area is less than 40m. 2 Normative reference documents
The provisions in the following documents become the provisions of this part through the reference of this part of JB/T6939. For dated referenced documents, all subsequent amendments (excluding corrigenda) or revisions do not apply to this section. However, parties to an agreement based on this section are encouraged to study whether the latest versions of these documents can be used. version. For undated referenced documents, the latest version applies to this section. Packaging, storage and transportation pictorial marking (eqv[SO780:1997] GB/T 191—2000
Priority number and priority number system
GB/T 321—1980
GB/T 2828 —1987
Batch-by-batch inspection and counting sampling procedures and sampling tables (applicable to inspection of consecutive batches) Periodic inspection and counting sampling procedures and tables (applicable to inspection of process stability) GB/T2829—2002||tt| |GB/T2900.33—1993
Electrotechnical terminology power electronics technology (eqvIEC60050-55t: 1982) GB/T 3859.11993
GB/T3859.2—1993
GB 4706.1—1998
JB/T 4277—1996
Regulations on basic requirements for semiconductor converters (eqvIEC60146-1-1: [991] Guidelines for application of semiconductor converters (eqvIEC60146-1-2: 1991) Safety of Household and Similar Electrical Appliances Part 1: General Requirements Power Semiconductor Device Packaging
JB/T 6939.22004
3 Terms and Definitions
Controllers for Off-grid Wind Turbine Sets Part 2 Part: The terms and definitions established in test methods GB/T2900.33, GB/T3859.1 and GB/T3859.2 apply to this part. 4 Abbreviations
Controller for charging off-grid wind turbines Type controller 5 Classification and basic parameters of controller
5.1 Classification of controller
5.1.1 Controllers can be classified according to their functional characteristics and the installation location of the rectifier device. 5.1.2 Controllers are divided according to their functional characteristics: a) Simple controller: a product that has the function of indicating battery overcharge, overdischarge and positive operation, and can transmit the power of the supporting unit to the electrical appliance: ||tt ||b) Automatic protection controller: a product that has automatic protection functions for battery overcharge, overvoltage and normal operation, and can deliver power from supporting units to electrical appliances:
c) Program control type Controller: The battery has different charging stage charging modes under different states of charge, and has an automatic control function for each stage of charging: it has an automatic protection function for battery over-discharge, and can deliver the power of the supporting unit to users. Electrical products.
5.1.3 Controllers are classified according to current input type: JB/T6939.1—2004
a) DC input type controller: off-grid type installed on the generator with the rectifier device Products matching wind turbines: \b) AC input controller: a product in which the rectifier device is directly installed in the controller. 5.2 Controller model
The controller model is compiled as follows: code controller type
rated voltage
rated power
modification serial number
a) The code name is represented by the Chinese pinyin letter FK. F represents the wind turbine, K represents the charging controller: b) The controller type is represented by Chinese pinyin letters: Z - DC input type:
J AC input type
c) Controller products The modification serial number is represented by the Chinese pinyin letters A, B, C, D**: A - the first modification
B - the second modification:
and so on.
Example:
FK
z
5.3 Basic parameters of the controller
24
0.6
A|| tt||Product modification serial number (first modification)
Controller rated power (0.6kW)
Controller rated voltage level (24V)
Controller input voltage Type (DC
input)
Off-grid wind turbine charging
type controller
5.3.1 The rated output parameters of the controller include: rated power , rated current, rated voltage, battery capacity, etc., their values ??should be given priority in accordance with the GB/T321-1980R10 series. The rated voltage should be selected according to the provisions of Table 1. 5.3.2 The rated input parameters of the controller include: DC input voltage, AC input voltage, wind turbine power, etc. Among them, DC input voltage and AC input voltage should be selected according to the provisions of Table 1. Table 1
12
24
Note: Non-preferred values ??are in parentheses.
6 Technical requirements
6.1 Performance requirements
36
48
(72)
110
6.1.1 The controller shall comply with the provisions of this section and be manufactured in accordance with drawings and technical documents approved through prescribed procedures. 6.1.2 The controller should be able to work continuously and reliably under the following conditions: a) Ambient temperature: -10℃~~+40℃: b) Relative air humidity: not more than 90% (25℃±5℃): c) Altitude: no more than 1000m.
220
6.1.3 The simple controller should have an indication device for battery pack overcharge and battery pack overdischarge. The overcharge voltage and over-discharge voltage indication values ??should comply with the operating voltage requirements in Table 2. 2
6.1.4 Automatic protection and program-controlled controllers should have the alarm battery pack voltage indication function. JB/T6939.12004 | Calculate the over-discharge voltage value, and the value should be adjusted according to the specific battery characteristics before leaving the factory.
Table 2
Battery type
Energy storage lead-acid battery
Fixed lead-acid battery
Sealed lead-acid silkworm battery||tt| |Manganese brocade alkaline battery
overcharge voltage value
action voltage
2.6
2.5
2.5
1.2||tt ||Note: The data in the table are all at 25℃±5℃. Recovery voltage
2.44±0.04
2.40±0.04
2.38±0.04
1.70±0.04
over-discharge voltage value
action voltage
T.75
1.80
1.80
1.00
Recovery voltage
1.91±0.04
1.91±0.04| |tt||1.9t±0.04
1.05±0.04
6.1.6 Program-controlled controller should have constant current, constant voltage and float charging or approximate constant current, constant voltage and float charging characteristics Phased charging function: The charging conditions at each stage should meet the standard requirements of the battery type used, and the charging current and voltage at each stage should be able to be automatically adjusted according to the battery charge.
6.1.7 For controllers with a voltage-stabilized DC output function, the technical indicators of the output electric energy should comply with the provisions of Table 3. Table 3
voltage regulation rate
(%)
≤0.1
Note: ripple voltage refers to the peak value 1gp
current regulation rate||tt ||(%)
≤0.5
Ripple voltage
mV
≤50
6.1.8 Automatic protection type, program control type and The controller with a regulated output terminal should have a short-circuit protection function at the regulated output terminal, and its short-circuit protection action time should not be greater than 0.5s.
6.1.9 The noise of the controller should not be greater than 65dB(A)6.1.10 For A controller with temperature compensation function. It should have a compensation function for the control points set in different charging modes. The temperature coefficient should be -3mV/C to -7mV/C for a single cell. 6.1.11 The controller with battery charging temperature control should have the function of displaying the battery temperature, and should be able to reduce the charging current or take voltage reduction measures when it approaches +40C, and should be able to automatically stop charging when it exceeds +45C. 6.1.12 When the controller runs for 5 minutes under the following two conditions, its main electrical performance should still comply with the provisions of 6.1.3~6.1.9 a) The input power is 2 times the rated output power of the supporting wind turbine: b) The output power is 1.5 times the rated output power of the supporting unit. 6.1.13 After the controller undergoes a vibration test in accordance with the provisions of 5.16 in JB/T6939.2-2004, its main electrical performance should still comply with the provisions of 6.1.3~6.1.9 of this section,
6.1.14 control The working time before the first failure of the device should be no less than 1500h. 6.1.15 Under normal operating conditions, the service life of the controller and related devices should be no less than 10 years. 6.1.16 If there are requirements for unloading electronic loads for supporting wind turbines, the controller should be equipped with an unloading electronic load and the power should not be less than 2 times the rated power of the wind turbine, and its action time for switching the unloading electronic load should not be less than 2 times. greater than 0.5s. 6.1.17 Automatic protection type and program control type controllers should have the protection function of reverse polarity of input and output terminals. 6.1.18 Automatic protection type and program control type controllers should have current limiting function to prevent sudden increase in wind speed. If it is damaged by peak current or high voltage,
6.1.19 the maximum self-consumption of the controller should not be greater than 3% of its rated charging current. 6.1.20 The circuit voltage drop of the controller during charging (generator to wide battery terminals) and discharging (battery to load terminals) should not be greater than 1V (for AC input type controllers, the voltage drop of the rectifier part is not included). 3
JB/T6939.1—2004
6.2 Structural requirements
6.2.1 The controller and its accessories should be designed and manufactured with safety, solidity and durability in mind. The structure is stable and reliable, and there should be no damage or deformation that affects use during normal operation. 6.2.2 Controllers with power greater than 1kW should be easily fixed on the wall or the ground using common connectors. 6.2.3 The surface of the controller should be smooth, and the terminals and parts that must be disassembled should be able to be connected and disassembled with general tools. 6.2.4 The safety performance of the controller circuit system should comply with the regulations of GB4706.1-1998. 6.2.5 For controllers with unloading devices, the components, devices and wiring of the circuit system should be arranged away from the unloading device. 6.3 Appearance requirements:
The controller shell should be smooth and well-proportioned. After surface treatment, there should be no uneven spraying, wrinkles, cracks, peeling paint, falling porcelain and other obvious appearance defects.
7 Test method
The test of the controller shall be carried out in accordance with the provisions of JB/T6939.2. 8 Inspection rules
8.1 Inspection classification
The inspection of the controller is divided into two categories: factory inspection and type inspection. 8.2 Factory inspection
8.2.1 The controller shall undergo factory inspection remotely and must pass the inspection by the quality inspection department before it can leave the factory. 8.2.2 The items of factory inspection shall be carried out in accordance with the requirements of 6.1.3~6.1.6, 6.2 and 6.3 of this part. 8.2.3 During the factory inspection, if all performance indicators meet the requirements, it will be judged as qualified. If there are any unqualified items, they will be re-inspected after repairs. Those that pass will be judged as qualified, otherwise they will be judged as unqualified. 8.2.4 If the product is judged to be qualified after factory inspection, a certificate of conformity shall be issued. 8.2.5 The sampling method for sampling inspection shall be carried out in accordance with the provisions of GB/T2828. In addition to the provisions of 8.2.2, the inspection items shall also inspect the function of the safety device. 8.3 Type inspection
8.3.1 Type inspection shall be carried out when one of the following situations occurs: a) When the new product is trial-formulated and appraised:
b) When the product is transferred to the factory for trial-formulated appraisal: c ) After formal production, if there are major changes in structure, materials, and processes that may affect performance: d) When the product has been out of production for more than three years and production is resumed: e) When the Ideko inspection results are significantly different from the last type inspection: f) When the national quality supervision agency proposes type inspection requirements: g) Once a year during mass production. 8.3.2 The items for type inspection shall be carried out one by one according to the items specified in 6.1.2~6.1.20, 6.2 and 6.3. 8.3.3 The prototypes for type inspection shall be randomly selected from the product batch. When the batch size is N=9~15 When testing, a one-time sampling plan for normal inspection is adopted. The classification of unqualified quality and sampling plan are shown in Table 4. The sampling method should comply with the provisions of GB/T2829. 8.3.4 Judgment rules
a) When the cumulative number of unqualified items under inspection is less than or equal to the qualified number 4. When, the entire batch of products is judged to be qualified in this category: b) When the cumulative number of unqualified products in the inspected category is greater than or equal to the number of unqualified judgments R,, the entire batch of products is judged to be unqualified in this category. c) When the product is judged to be qualified in both categories A and B, the entire batch of products is judged to be qualified, otherwise it is judged to be unqualified. Table 4
Unqualified classification
Unqualified items
A
Charging overvoltage test
Voltage indication function test
B|| tt||Unqualified classification
Unqualified items
Number of items
Inspection level
Sampling plan
Judgment rules
Sample code
Sample size
AQL
A
R
Table·4 (continued)
A
Discharge undervoltage Test
Load test
Output short-circuit protection test
Input and output reverse connection protection test
Working time before sub-fault
6||tt ||6.5
0
8.3.5 Products that have been in stock for more than two years should be reviewed in accordance with 8.2. 9 mark, packaging, transportation, storage
9.1 mark
voltage regulation test
current regulation test
ripple voltage test
no-load loss Test
JB/T6939.1—2004
B
Charge and discharge circuit voltage drop test
Current limiting protection test
High temperature test||tt ||Low temperature testwww.bzxz.net
Accuracy compensation test
Humidity control and protection test
Noise test
Vibration, free drop test
Appearance requirements||tt| |14
General inspection level 1
B
3
40
2
Each controller should be installed at an appropriate location Standard nameplate mark, indicating the following matters a) Name and model of the controller (the model should comply with the provisions of 5.2) b) Applicable wind turbine type and model: c) Rated power:
d) Input voltage type and level :
e) Rated voltage level:
f) Manufacturer name:
g) Manufacturing number or batch number:
h) Production date:
i) Safety precautions.
9.2
Instruction manual
Each controller should have an instruction manual, which should include the following: a) A simplified diagram of the controller's overall structure and dimensions and the names of its main components: b) How to install the controller:
c) How to operate and adjust the controller:
d) How to use it safely:
e) Troubleshooting and maintenance.
3
JB/T6939.1—2004
9.3 Packaging
9.3.1 The packaging box should be marked as follows: product name, trademark, model, applicable wind power Generator set type and model, weight, production date, factory name, factory address, postal code, implementation standard number and name, as well as moisture-proof, upward, handle with care and other signs. Moisture-proof, upward, handle with caution and other signs should comply with the regulations of GB/T191. 9.3.2 Products can be packaged in boxes or boxes. Packaging should comply with the regulations of JB/T4277. 9.3.3 The products, certificates, instructions for use, and accessories in the packaging box should be consistent with the packing list. 9.4 Transportation
9.4.1 During transportation, severe vibration, extrusion, rain and chemical corrosion should be prevented. 9.4.2 Handling should be handled with care, stacked neatly, and rolling and throwing are strictly prohibited. 9.5 Storage
9.5.1 Finished products should be stored in a dry and ventilated warehouse without corrosive gas around. 9.5.2 Controllers should be stored according to model classification, and the stacking height should take into account the strength of the packaging box and ease of access. 0Quality guarantee period
10
As long as the user abides by the installation and use regulations of the product, within 12 months from the date of purchase by the user, the product cannot work properly due to poor manufacturing quality When the problem occurs, the manufacturer shall repair or replace it free of charge for the user.
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