Active filter( APF)


The STS active filter detects the load current in real time through an external current transformer CT, and extracts the harmonic component of the load current through internal DSP calculation, and then sends it to the internal IGBT through the PWM signal .The control inverter generates a current with the same magnitude and opposite direction of the load harmonics injected into the grid to compensate the harmonic current.

The STS active filter detects the load current in real time through an external current transformer CT, and extracts the harmonic component of the load current through internal DSP calculation, and then sends it to the internal IGBT through the PWM signal .The control inverter generates a current with the same magnitude and opposite direction of the load harmonics injected into the grid to compensate the harmonic current.

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Power quality inspection
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Active filter
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Each harmonic current is superimposed with the fundamental current, and finally appears as a non-sinusoidal waveform.

 

By means of parallel connection, detecting the harmonic components of the load in real time, using PWM variation technology, the active power filter will inject the current with the same harmonic current and opposite direction into the power supply and distribution system to realize the function of filtering harmonics.

 

 

Active filter( APF)Identification Code

 

 

 APF Verticial Product Size        APF Wall Mount Product Size   

  

Model Size(W*H*D)/mm Weight/kg Model Size(W*H*D)/mm Weight/kg
STS 025 APF 44(43)L/RL(E) 440*150*470 18 STS025 APF 44(43)L/HL(E) 440*470*150 18
STS 035 APF 44(43)L/RL(E) 440*150*470 18 STS 035 APF 44(43)L/HL(E) 440*470*150 18
STS 050 APF 44(43)L/RL(E) 440*190*590 35 STS 050 APF 44(43)L/HL(E) 440*590*190 35
STS 060 APF 44(43)L/RL(E) 440*190*590 35 STS 060 APF 44(43)L/HL(E) 440*590*190 35
STS 100 APF 44(43)L/RL(E) 440*230*600 36 STS 100 APF 44(43)L/HL(E) 440*600*230 36
STS 150 APF 44(43)L/RL(E) 500*270*510 48      

 

 

   

APF Product Parameter

 

Item APF U model parameter list APF High power model
480V 600V 690V 480V 600V 690V
STS APF 075/150/225/300 /450/600 STS APF 300/600/900/1200
System parameters
Rated AC input line voltage 480V 600V 690V 480V 600V 690V
Input voltage range -20%~+20% -20%~+20% -30%~+15% -20%~20% -20%~20% -20%~10%
Grid frequency 50/60Hz (range:45Hz~62.5Hz)
Parallel number Unlimited
Machine efficiency >97% >98.5%
Network structure Three-phase three-wire
Current Transformer 150/5~10,000/5
Circuit topology Tri-sync
Performance
Rated compensation capacity 075/150/225/300 /450/600A 300/600/900/1200A
Reactive power compensation Support
Unbalance compensation Support
Filter range 2~50 times 3 to 13 times
Filter selection Any number of 2 to 50 times Any number of 3 to 13 times
Degree of filtering Any number of 2 to 50 times Any number of 3 to 13 times
Filtering ability THDI (Current distortion rate)<5%
Fast response time <100μs
Full response time <5ms
Target power factor Adjustable from -1 to +1
Control algorithm FFT algorithm, intelligent FFT algorithm, instantaneous reactive power algorithm
On-off level 20 kHz
Intelligent air cooling

380/760/1140

1520(L/Sec)

260/520/780/1040(L/Sec) 875(L/Sec)
Noise indicator / single module <70db <70db
Communication monitoring capability
Communication Interface RS485、Network port
Letter of agreement Modbus protocol,TCP/IP
PC software Optional
Protective function Overvoltage protection, under voltage protection, short circuit protection, inverter bridge reverse protection, overcompensation protection
CT monitoring warning YES
Fault alarm Yes, up to 500 alarm records
Monit 7-inch full color touch screen
Mechanical properties
Fixed way Modular design full cabinet installation
Maintenance space Front maintenance
Entry method Down line
Cabinet size (width * depth * height, mm3) 800*600*2200(300A) 600*800*2200(300A)
Net weight

290/380/470/560 kg

245/310/375/440kg 400kg
Color Light gray (GB3703)\ or customized
Environmental
Altitude <1500m, 1500m or more, derated according to GB/T3859.2, for every 100m increase, the power is reduced by 1%
Operating temperature -10℃~+40℃
Relative humidity 5%~95%,No condensation
Protection level IP20,The remaining voltage levels can be customized
Relevant qualifications and standards
Certification Experimental report and BV certification of the Ministry of Power
Standards IEEE519、IEC 61000-3-6、ER G5/4

 

 

Each harmonic current is superimposed with the fundamental current, and finally appears as a non-sinusoidal waveform.

 

By means of parallel connection, detecting the harmonic components of the load in real time, using PWM variation technology, the active power filter will inject the current with the same harmonic current and opposite direction into the power supply and distribution system to realize the function of filtering harmonics.

 

 

Active filter( APF)Identification Code

 

 

 APF Verticial Product Size        APF Wall Mount Product Size   

  

Model Size(W*H*D)/mm Weight/kg Model Size(W*H*D)/mm Weight/kg
STS 025 APF 44(43)L/RL(E) 440*150*470 18 STS025 APF 44(43)L/HL(E) 440*470*150 18
STS 035 APF 44(43)L/RL(E) 440*150*470 18 STS 035 APF 44(43)L/HL(E) 440*470*150 18
STS 050 APF 44(43)L/RL(E) 440*190*590 35 STS 050 APF 44(43)L/HL(E) 440*590*190 35
STS 060 APF 44(43)L/RL(E) 440*190*590 35 STS 060 APF 44(43)L/HL(E) 440*590*190 35
STS 100 APF 44(43)L/RL(E) 440*230*600 36 STS 100 APF 44(43)L/HL(E) 440*600*230 36
STS 150 APF 44(43)L/RL(E) 500*270*510 48      

 

 

   

APF Product Parameter

 

Item APF U model parameter list APF High power model
480V 600V 690V 480V 600V 690V
STS APF 075/150/225/300 /450/600 STS APF 300/600/900/1200
System parameters
Rated AC input line voltage 480V 600V 690V 480V 600V 690V
Input voltage range -20%~+20% -20%~+20% -30%~+15% -20%~20% -20%~20% -20%~10%
Grid frequency 50/60Hz (range:45Hz~62.5Hz)
Parallel number Unlimited
Machine efficiency >97% >98.5%
Network structure Three-phase three-wire
Current Transformer 150/5~10,000/5
Circuit topology Tri-sync
Performance
Rated compensation capacity 075/150/225/300 /450/600A 300/600/900/1200A
Reactive power compensation Support
Unbalance compensation Support
Filter range 2~50 times 3 to 13 times
Filter selection Any number of 2 to 50 times Any number of 3 to 13 times
Degree of filtering Any number of 2 to 50 times Any number of 3 to 13 times
Filtering ability THDI (Current distortion rate)<5%
Fast response time <100μs
Full response time <5ms
Target power factor Adjustable from -1 to +1
Control algorithm FFT algorithm, intelligent FFT algorithm, instantaneous reactive power algorithm
On-off level 20 kHz
Intelligent air cooling

380/760/1140

1520(L/Sec)

260/520/780/1040(L/Sec) 875(L/Sec)
Noise indicator / single module <70db <70db
Communication monitoring capability
Communication Interface RS485、Network port
Letter of agreement Modbus protocol,TCP/IP
PC software Optional
Protective function Overvoltage protection, under voltage protection, short circuit protection, inverter bridge reverse protection, overcompensation protection
CT monitoring warning YES
Fault alarm Yes, up to 500 alarm records
Monit 7-inch full color touch screen
Mechanical properties
Fixed way Modular design full cabinet installation
Maintenance space Front maintenance
Entry method Down line
Cabinet size (width * depth * height, mm3) 800*600*2200(300A) 600*800*2200(300A)
Net weight

290/380/470/560 kg

245/310/375/440kg 400kg
Color Light gray (GB3703)\ or customized
Environmental
Altitude <1500m, 1500m or more, derated according to GB/T3859.2, for every 100m increase, the power is reduced by 1%
Operating temperature -10℃~+40℃
Relative humidity 5%~95%,No condensation
Protection level IP20,The remaining voltage levels can be customized
Relevant qualifications and standards
Certification Experimental report and BV certification of the Ministry of Power
Standards IEEE519、IEC 61000-3-6、ER G5/4

 

Energy Feedback Reactor

Reference / Implementing Standards GB1094.6-2011 Electric transformer JB9644-1999 Semiconductor electric drive reactor IEEE519 - 1992/EN6100-5-2

Harmonic filter

Reference/ lmplementing Standards IEEE519(EN - 2-5) Electromagnetic Magnetic Compatibility(EMC) EN61558-2-20 (VDE 507-2-20) Safety of Power Supply Equipment and Similar Equipment GB145493-93 Power Quality Public Power Grid Harmonic Wave

LCL filter

Reference/ lmplementing Standards GB 1094.6-2011 Reactor GB 1094.6-2011 Reactor (eqvlEC289:1987) JB 9644-1999 semiconductor electric drive reactor IEEE519-1992 GBT14549-93

EMI filter

Please see the details

Output Reactor

It is installed at the output end of the inverter, which is used to limit the capacitive charging current of the inverter and the motor connecting cable, and inactivate the voltage rise rate of PWM wave output by the inverter. When the length of motor cable exceeds a certain value, it is recommended to insert a motor reactor between the inverter and the motor, which is used to compensate the recharging current of capacitor in case of the long wires. The maximum length depends on the rated value of the frequency converter and the type of the motor cable.

Input Reactor

The input reactor can be used to provide improved overload protection for the line power supply, and to reduce the current harmonic distortion produced by the inverter. Increase the power factor of input power supply, reduce the high harmonic, and restrain the surge of frequency converter in the power supply equipment

Isolation transformer

The SG series three-phase dry-type isolation transformer is a new generation of energy-saving dry-type transformers developed and produced by our company on the basis of reference to similar international products and combined with applications. From...

DC Smoothing Reactor

DC smoothing reactor is used in the rectifying circuit to restrain the ripple pulse component after rectification and make the rectified current continuous, so as to improve the output branch waveform and guarantee the normal operation of DC equipment. The smoothing reactor is used as the series reactor in DC machine supplied by the converter, in order to eliminate the DC link in the current and voltage DC link converter; It is supposed to decouple the converter components on DC side. The power converter on DC side has high pulse circuit feedback to reduce the difference value limit, so as to limit the ring current on the connection with ring current, at the same time, limit the the rising rate of current. The smoothing reactor adopts the iron core of TEM and TET or TPK air core reactor, depending on the requirements on electromagnetic induction.

Sine wave filter

Reference / lmplementing Standards: IEEE519(EN61000-5-2) Electromagnetic compatibility (EMC) EN 61558-2-20(VDE507-2-20) Safety of power supply equipment and similar equipment GB 145493-93 Power quality, utility grid harmonics

Dv/dt filter

Reference / Implementing Standards: IEC60076-6:2007 Reactor GB1094.6-2011 Reactor (eqvIEC289:1987) JB9644-1999 Semiconductor electric drive reactor

Energy Feedback Reactor

Reference / Implementing Standards GB1094.6-2011 Electric transformer JB9644-1999 Semiconductor electric drive reactor IEEE519 - 1992/EN6100-5-2

Harmonic filter

Reference/ lmplementing Standards IEEE519(EN - 2-5) Electromagnetic Magnetic Compatibility(EMC) EN61558-2-20 (VDE 507-2-20) Safety of Power Supply Equipment and Similar Equipment GB145493-93 Power Quality Public Power Grid Harmonic Wave

LCL filter

Reference/ lmplementing Standards GB 1094.6-2011 Reactor GB 1094.6-2011 Reactor (eqvlEC289:1987) JB 9644-1999 semiconductor electric drive reactor IEEE519-1992 GBT14549-93

EMI filter

Please see the details

Output Reactor

It is installed at the output end of the inverter, which is used to limit the capacitive charging current of the inverter and the motor connecting cable, and inactivate the voltage rise rate of PWM wave output by the inverter. When the length of motor cable exceeds a certain value, it is recommended to insert a motor reactor between the inverter and the motor, which is used to compensate the recharging current of capacitor in case of the long wires. The maximum length depends on the rated value of the frequency converter and the type of the motor cable.

Input Reactor

The input reactor can be used to provide improved overload protection for the line power supply, and to reduce the current harmonic distortion produced by the inverter. Increase the power factor of input power supply, reduce the high harmonic, and restrain the surge of frequency converter in the power supply equipment

Isolation transformer

The SG series three-phase dry-type isolation transformer is a new generation of energy-saving dry-type transformers developed and produced by our company on the basis of reference to similar international products and combined with applications. From...

DC Smoothing Reactor

DC smoothing reactor is used in the rectifying circuit to restrain the ripple pulse component after rectification and make the rectified current continuous, so as to improve the output branch waveform and guarantee the normal operation of DC equipment. The smoothing reactor is used as the series reactor in DC machine supplied by the converter, in order to eliminate the DC link in the current and voltage DC link converter; It is supposed to decouple the converter components on DC side. The power converter on DC side has high pulse circuit feedback to reduce the difference value limit, so as to limit the ring current on the connection with ring current, at the same time, limit the the rising rate of current. The smoothing reactor adopts the iron core of TEM and TET or TPK air core reactor, depending on the requirements on electromagnetic induction.


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