1、Working principle
The working principle of the STD APF series active power filter is to detect the load current in real time. Based on the specified harmonic current detection algorithm, the harmonic current is separated step by step, and a control signal is generated according to the set filtering percentage to drive the IGBT to output compensation current that is the same as the amplitude of the load harmonic current and opposite in phase, achieving the purpose of harmonic cancellation.
2、Performance characteristics
Ø Using DSP+CPLD full digital control core, three-level topology technology, advanced harmonic detection algorithm, and PWM control strategy to achieve precise compensation of harmonic current.
Ø Adopting modular design, it is convenient for multiple modules to be connected in parallel, with small footprint and easy maintenance.
Ø The design of independent air ducts and independent board storage structures ensures the stable operation of the equipment.
Ø The range of harmonic filtering is wide, which can filter out 2-50 harmonics and solve the problem of three-phase imbalance at the same time.
Ø The harmonic filtering rate is high, and under the allowable capacity conditions, the harmonic current filtering rate can reach up to 95%.
Ø 100% current limiting output can be set to ensure long-term stable operation of the equipment. 3. Main application scenarios
3、Main application scenarios
Petrochemical industry, data center, hospital industry, pharmaceutical manufacturing, steel industry, semiconductor manufacturing, light industry and textile industry, etc.
4、Model Description and Appearance
Model Description
Active power filter
5、Technical parameters
|
|
220Vseries |
380Vseries |
500Vseries |
690Vseries |
|
Altitude |
≤1500米 |
≤1500米 |
≤1500米 |
≤1500米 |
|
Environmental temperature |
-20～+50℃ |
-20～+50℃ |
-20～+50℃ |
-20～+50℃ |
|
Relative humidity |
≤90%，monthly minimum temperature25℃surface no condensation |
≤90%，monthly minimum temperature25℃surface no condensation |
≤90%，monthly minimum temperature25℃surface no condensation |
≤90%，monthly minimum temperature25℃surface no condensation |
|
Pollution level |
below level III |
below level III |
below level III |
below level III |
|
Working voltage |
AC220V±20% |
AC380V±20% |
AC500V±20% |
AC690V±20% |
|
Working frequency |
50Hz±5% |
50Hz±5% |
50Hz±5% |
50Hz±5% |
|
Compensation current |
25A |
50A、75A、100A、150A |
100A |
100A |
|
Power grid structure |
L/N |
three-phase three wire/three-phase four wire |
three-phase three wire/three-phase four wire |
three-phase three wire/three-phase four wire |
|
number of parallel units |
Unlimited |
Unlimited |
Unlimited |
Unlimited |
|
Overall efficiency |
＞97% |
＞97% |
＞97% |
＞97% |
|
Switching frequency |
32kHz |
16kHz |
12.8kHz |
12.8kHz |
|
Compensation range |
2-50 times, single compensation rate adjustable |
2-50 times, single compensation rate adjustable |
2-50 times, single compensation rate adjustable |
2-50 times, single compensation rate adjustable |
|
Function selection |
harmonic |
harmonic, harmonic + unbalanced |
harmonic, harmonic + unbalanced |
harmonic, harmonic + unbalanced |
|
Harmonic compensation rate |
>95% |
>92% |
>92% |
>92% |
|
Neutral line filtering ability |
|
Neutral line filtering ability is 3 times the phase filtering ability |
Neutral line filtering ability is 3 times the phase filtering ability |
Neutral line filtering ability is 3 times the phase filtering ability |
|
Full response time |
<10ms |
<40ms |
<40ms |
<40ms |
|
Noise |
≤60dB |
≤60dB |
≤65dB |
≤65dB |
|
Communication method |
2-way RS485 communication interface (supporting GPRS/WIFI) |
2-way RS485 communication interface (supporting GPRS/WIFI) |
2-way RS485 communication interface (supporting GPRS/WIFI) |
2-way RS485 communication interface (supporting GPRS/WIFI) |
|
Protection function |
Overload, software/hardware overcurrent, grid overvoltage/undervoltage, power failure, over temperature, frequency anomaly protection, etc |
Overload, software/hardware overcurrent, grid overvoltage/undervoltage, grid voltage imbalance, power failure, over temperature, abnormal frequency, short circuit protection, etc |
Overload, software/hardware overcurrent, grid overvoltage/undervoltage, grid voltage imbalance, power failure, over temperature, abnormal frequency, short circuit protection, etc |
Overload, software/hardware overcurrent, grid overvoltage/undervoltage, grid voltage imbalance, power failure, over temperature, abnormal frequency, short circuit protection, etc |
|
Installation method |
rack/wall mounted> |
rack/wall mounted |
rack |
rack |
|
Incoming method |
rear incoming line (rack mounted), upper incoming line (wall mounted) |
rear incoming line (rack mounted), upper incoming line (wall mounted) |
rear incoming line |
rear incoming line |
|
Protection level |
IP20 |
IP20 |
IP20 |
IP20 |
6、Specification and model
|
Module model |
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|
Common models |
Rated current(A) |
System voltage (V) |
Overall dimensions: Width * Depth * Height (mm) |
Cooling method |
|
STD APF-0.22-23A/2L-R |
23 |
220 |
220*330*160 |
Forced air cooling |
|
STD APF-0.4-50A/4L-R |
50 |
400 |
450*460*95 |
Forced air cooling |
|
STD APF-0.4-75A/4L-R |
75 |
400 |
453*540*190 |
Forced air cooling |
|
STD APF-0.4-100A/4L-R |
100 |
400 |
500*550*215 |
Forced air cooling |
|
STD APF-0.4-150A/4L-R |
150 |
400 |
500*550*215 |
Forced air cooling |
|
STD APF-0.5-100A/4L-R |
100 |
500 |
495*675*275 |
Forced air cooling |
|
STD APF-0.69-100A/4L-R |
100 |
690 |
495*675*275 |
Forced air cooling |
|
Whole cabinet device model |
||||
|
Common models |
Rated current(A) |
System voltage(V) |
Overall dimensions: Width * Depth * Height (mm) |
Cooling method |
|
STD APF-0.4-100A/4L-C |
100 |
400 |
1000*1000*2200 |
Forced air cooling |
|
STD APF-0.4-150A/4L-C |
150 |
400 |
1000*1000*2200 |
Forced air cooling |
|
STD APF-0.4-200A/4L-C |
200 |
400 |
1000*1000*2200 |
Forced air cooling |
|
STD APF-0.4-250A/4L-C |
250 |
400 |
1000*1000*2200 |
Forced air cooling |
|
STD APF-0.4-300A/4L-C |
300 |
400 |
1000*1000*2200 |
Forced air cooling |
|
STD APF-0.4-400A/4L-C |
400 |
400 |
1000*1000*2200 |
Forced air cooling |
|
STD APF-0.5-300A/4L-C |
300 |
500 |
1000*1000*2200 |
Forced air cooling |