KLD-AMS Series
Active Filters
KLD-AMS Series Active Filters
Ensuring high power quality of industrial and commercial facilities, helping users in various industries to solve the thorny problem of harmonic interference in the power distribution system.
With the progress of science and technology, more and more power electronic devices and other non-linear loads are applied in companies, such as rectifiers, inverters, UPS, elevators, air conditioners, energy-saving lights, computers, household appliances, etc. These nonlinear loads generate a large amount of harmonic currents that are being injected into the power grid, leading to the voltage waveform distortion. This voltage harmonic pollution can cause serious harm to the grid and all back-end users. In addition, impacting and fluctuating loads, e.g., arc furnace welding equipment, not only generates a large amount of high harmonics in operation, but also causes voltage fluctuations, flickers and three-phase imbalance and other power quality problems, threatening the safe operation of the grid. Harmonics is virtually a kind of interference that “pollutes” the power grid.
KLD-AMS series active power filters are connected in parallel with the harmonic source. It quickly generates currents that are equal in size and opposite in direction to offset the harmonic currents produced by the harmonic source loads through real-time detection and tracking, thus eliminating harmonics and avoiding distortion of system voltage and current waveforms. The equippment has an adaptive function to compensate for harmonics of varying frequency and size, and quickly responds to the compensation object.
KLD-AMS series active filters can automatically track the system and control the harmonics according to the actual situation, and can filter out the 2nd to 71st harmonics.
When the active filter is in normal operation, it can filter the harmonics in the whole range at the same time, and also selectively filter harmonics of various orders, and adjust the filtering rate of random harmonic based on the requirements.
Internal layered design ensures that different functional areas are separated from each other, which is suitable for harsh environments, such as areas filled with dust and conductive particles, saline and alkaline, and humind environment. Each module is equipped with an independent heat dissipation structure, which can quickly transfer and dissipate heat to reduce the operating temperature of the equipment. The noise level of the whole machine is less than or equal to 60dB.
DSP decomposes the collected system waveforms through row calculation and identifies the characteristics of the harmonic components that need to be controlled. According to the set parameters and control requirements, it calculates the output current and generates the corresponding pulse width modulation signals to control the inverter IGBT switching devices, so that the main circuit can produce the waveforms as required and achieve the maximum control effect with minimum power consumption.
The whole system adopts three-level topology, providing users with reliable control guarantee!
| Input | |
| Operating voltage | 200~690V |
| Operating frequency | 50/60±10%Hz |
| Performance index | |
| Filtering capacity | Up to 97% |
| Filtering range | 2nd-71st harmonic |
| Full response time | ≤10ms |
| Power factor correction | Supported，configurable |
| IGBT Frequency | 20kHz |
| Overload protection | Automatic current limiting at 100% of rated output |
| Interface module | |
| Display interface | New full-color display, real-time display of system harmonics and harmonic current produced by equipment |
| Operation interface | LCD intelligent operation unit |
| Language | Simplified Chinese/English |
| Communication interface | RS485/RS232 |
| Environmental operation | |
| Ambient temperature | -10℃~+55℃ |
| Storage temperature | -40℃~+75℃ |
| Relative humidity | Maximum 95%RH (no condensing) |
| Altitude | ≤1500 meters; between 1500-4000 meters, the power decreases by 1% for every 100m increase |
| Model | Rated Compensation Current（A） | Rated voltage（V） | type | Cooling method |
| Three-phase three-wire system | ||||
| KLD-AMS25-3L-400V-HD | 25 | 400 | Wall-mounted, with screen | Forced air-cooling |
| KLD-AMS50-3L-400V-RD | 50 | 400 | Rack-mounted, with screen | Forced air-cooling |
| KLD-AMS100-3L-400V-RC | 100 | 400 | Rack-mounted, centralized monitoring and control | Forced air-cooling |
| KLD-AMS150-3L-400V-RC | 150 | 400 | Rack-mounted, centralized monitoring and control | Forced air-cooling |
| three-phase four-wire system | ||||
| KLD-AMS25-4L-400V-HD | 25 | 400 | Wall-mounted, with screen | Forced air-cooling |
| KLD-AMS50-4L-400V-RD | 50 | 400 | Rack-mounted, with screen | Forced air-cooling |
| KLD-AMS100-4L-400V-RC | 100 | 400 | Rack-mounted, centralized monitoring and control | Forced air-cooling |
| KLD-AMS150-4L-400V-RC | 150 | 400 | Rack-mounted, centralized monitoring and control | Forced air-cooling |
Input
Operating voltage：200~690V
Operating frequency：50/60±10%Hz
Performance indicators
Filtering capacity：Up to97%
Filtering range：2nd-71st harmonic
Full response time：≤10ms
Power factor correction：Supported，configurable
IGBT Frequency：20kHz
Overload protection：Automatic current limiting at 100% of rated output
Interface module
Display interface：New full-color display, real-time display of system harmonics and harmonic current produced by equipment
Operation interface：LCD intelligent operation unit
Language：Simplified Chinese/English
Communication interface：RS485/RS232
Environmental operation
Ambient temperature：-10℃~+55℃
Storage temperature：-40℃~+75℃
Relative humidity：Maximum 95%RH (no condensing)
Altitude：≤1500 meters; between 1500-4000 meters, the power decreases by 1% for every 100m increase
Three-phase three-wire system
Rated Compensation Current（A）：25
Rated voltage（V）：400
Type：Wall-mounted, with screen
Cooling method：Forced air-cooling
Rated Compensation Current（A）：50
Rated voltage（V）：400
Type：Rack-mounted, with screen
Cooling method：Forced air-cooling
Rated Compensation Current（A）：100
Rated voltage（V）：400
Type：Rack-mounted, centralized monitoring and control
Cooling method：Forced air-cooling
Rated Compensation Current（A）：150
Rated voltage（V）：400
Type：Rack-mounted, centralized monitoring and control
Cooling method：Forced air-cooling
Three-phase our-wire system
Rated Compensation Current（A）：25
Rated voltage（V）：400
Type：Wall-mounted, with screen
Cooling method：Forced air-cooling
Rated Compensation Current（A）：50
Rated voltage（V）：400
Type：Rack-mounted, with screen
Cooling method：Forced air-cooling
Rated Compensation Current（A）：100
Rated voltage（V）：400
Type：Rack-mounted, centralized monitoring and control
Cooling method：Forced air-cooling
Rated Compensation Current（A）：150
Rated voltage（V）：400
Type：Rack-mounted, centralized monitoring and control
Cooling method：Forced air-cooling