The active filter launched by Bogmating for domestic grid users, as an advanced power quality control product with high technology content, integrates the power electronic technology, digital control technology, digital signal processing technology, optical fiber transmission and other cutting-edge technologies. The core of the product is composed of the power electronics converter circuit and harmonic detection algorithm. The key technology of the power electronics converter circuit is selection and realization of topological structure.
The traditional topological structure in the active power filter is two-level topology characterized by output of high and low levels by the port voltage at the AC side. Another new topological structure is three-level topology characterized by output of high, low and zero levels (with the middle point at the converter DC side as reference point) by the port voltage at the AC side.
Compared with the three-level topology, the two-level topology has the advantages of simple and easy control algorithm and the disadvantages of high voltage, large stress and large loss of the converter switching elements and high high-frequency harmonic components in the output waveform, bringing difficulties to the design of switch sub-filter and resulting in large loss in the magnetic elements.
The three-level program well solves these problems of two-level program and obviously improves the system efficiency at the cost of relatively complex control algorithm and requiring more switching elements. But due to halved voltage withstood by each switching element and reduction in the cost of each element, the system cost will not be increased significantly.
Major advantages
Main applications
1. Many occasions of frequency conversion equipment
2. Application scenarios of unsteady load
3. Iron and steel smelting industry
4. Harbor machinery industry
5. Electric railway system
6. High-precision automatic production line
7. Energy saving lamp and air conditioner centralized places such as office building and large commercial district
Technical parameters
Product model | BGMD-AMZ2-50 | BGMD-AMZ2-75 | BGMD-AMZ2-100 | BGMD-AMZ2-150 | BGMD-AMZ2-200 | |
Basic parameters | Compensation capacity | 50A | 75A | 100A | 150A | 200A |
Electric wiring | Three-phase three-wire/three-phase four-wire | |||||
Voltage class supported | 380V~690V | |||||
Input voltage (V) | 380V/690V -40%~+20%(three-phase voltage) | |||||
Input frequency (Hz) | 50/60HZ +/-5% | |||||
Power module extension | At most extended to 8 power modules | |||||
Rack/wall-mounted | Rack/wall-mounted | |||||
Incoming wire mode | Rear/upper | |||||
Noise (dB) | < 48 | < 48 | < 52 | < 52 | < 54 | |
Cooling mode | Self-starting air cooling | Self-starting air cooling | Self-starting air cooling | Self-starting air cooling | Self-starting air cooling | |
Running temperature | -5℃~+45℃ | |||||
Storage temperature | -40℃-+70℃ | |||||
Relative humidity | ≤95%(no condensation) | |||||
Altitude | 1500m, between 1500~4000m, power reduced by 1% for altitude increased by 100m according to the provisions in the national standard GB/T3859.2 | |||||
Protection grade | IP20, other IP grades can be customized | |||||
Mean time between failure | ≥130,000h | |||||
CT wiring mode | Support a number of wiring modes (source side and load side) | |||||
Key indicators | Filter range | 2~50 times, specific times of harmonic can be compensated | ||||
Specific subharmonic compensation | 2~50 times arbitrarily | |||||
Switching frequency | Average 20KHz | |||||
Control method | Fast Fourier transform FFT and instantaneous reactive power | |||||
Topological structure | Multi-level inverter | |||||
Overall efficiency | ≥97% | |||||
Response time | Quick response≤100us, complete response ≤10ms | |||||
Reactive compensation | Available | |||||
Three-phase imbalance compensation | Available | |||||
Overload protection | Available, automatic current limit at 100% rated output | |||||
Extended functions | Man-machine interface | LCD display and display of electrical parameters in each phase | ||||
Communication protocol | Modbus/RS485 | |||||
Failure records | At most 500 articles can be recorded |
Structure features
● Efficient filter capacity
1. As a product of dynamic filtering of harmonic current, the active filter is characterized by thorough filtering effect, effective filtering of higher harmonic and effective suppression of resonance, so filter capacity is a key parameter of the active filter product. Each harmonic current within 2 ~50 times can be filtered once by the active filter introduced by Bogmating.
● Advanced man-machine interaction information
2. Man-machine interaction information is an important function of the active filter and the carrier for the user to understand the system filtering effect and machine running status.
● Multi-CPU control mixed control system
3. Active filter completes the whole detection, analysis and compensation of harmonic current by means of dynamic compensation of harmonic current through software algorithm, which is burnt in DSP (CPU). Compared with dual DSP control system of conventional active filters, the active filter of Bogmating adopts multi-CPU mixed control system. The system with multi-CPU parallel work mainly has two advantages: (1) increase the computation speed by times, i.e. increase the harmonic compensation speed by times; (2) data size of software algorithm that can be used is larger with CPU quantity increase.
● High stability and reliability, high management efficiency and high engineering efficiency
4. Bogmating active filter is mostly characterized by high stability and reliability, high management efficiency and high engineering efficiency compared with conventional active filters. Bogmating typical active filter module capacities include 50A, 60A, 75A, 100A, 150A and 200A. In case of failure of a module in an active filter system constructed by multiple modules, the other modules keep normal running, reflecting high stability; in case of system module failure, the active filter module is directly replaced and the other modules are running normally to support the user filter needs, minimizing the losses that cannot meet the the user filtering needs due to failure and reflecting high management efficiency; wide module capacity coverage, flexible configuration of optimal system capacity and wall-mounted and rack installation modes reflect high engineering efficiency.
Specification modelSpecification and model Other specifications can be customized. The equipment is applied to the system of no more than 1000V. For details, consult the company. Thank you!
● Model selection table of three-phase four-wire active filter
Model |
Current (A) |
System voltage (V) |
Filter capacity |
Applicable cabinet type (W*D*H) mm |
---|---|---|---|---|
BGMD-AMZ2-50-4-400V |
50 |
400V |
>98% |
800*800*2200 |
BGMD-AMZ2-75-4-400V |
75 |
400V |
>98% |
800*800*2200 |
BGMD-AMZ2-100-4-400V |
100 |
400V |
>98% |
800*800*2200 |
BGMD-AMZ2-150-4-400V |
150 |
400V |
>98% |
800*800*2200 |
BGMD-AMZ2-200-4-400V |
200 |
400V |
>98% |
800*800*2200 |
Other specifications can be customized. The equipment is applied to the system of no more than 1000V. For details, consult the company.
Apply to the three-phase three-wire 400V system without neutral line and compensate the reactive power.
Model |
Current (A) |
System voltage (V) |
Filter capacity |
Applicable cabinet type (W*D*H) mm |
---|---|---|---|---|
BGMD-AMZ2-50-3-400V |
50 |
400V |
>98% |
800*800*2200 |
BGMD-AMZ2-75-3-400V |
75 |
400V |
>98% |
800*800*2200 |
BGMD-AMZ2-100-3-400V |
100 |
400V |
>98% |
800*800*2200 |
BGMD-AMZ2-150-3-400V |
150 |
400V |
>98% |
800*800*2200 |
BGMD-AMZ2-200-3-400V |
200 |
400V |
>98% |
800*800*2200 |
Other specifications can be customized. The equipment is applied to the system of no more than 1000V. For details, consult the company.
Apply to the three-phase three-wire 690V system without neutral line and compensate the reactive power.
Model |
Current (A) |
System voltage (V) |
Filter capacity |
Applicable cabinet type (W*D*H) mm |
---|---|---|---|---|
BGMD-AMZ2-75-3-690V |
75 |
690V |
>98% |
800*800*2200 |
BGMD-AMZ2-100-3-690V |
100 |
690V |
>98% |
800*800*2200 |
BGMD-AMZ2-150-3-690V |
150 |
690V |
>98% |
800*800*2200 |
Other specifications can be customized. The equipment is applied to the system of no more than 1000V. For details, consult the company.