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15~50A APF module
- Product Description
- Features & Advantages
- Technical Parameters
- Related manuals
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15~50A APF module
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- Commodity name: 15~50A APF module
- Commodity ID: 1362032826366185472
- 类型: Industrial automation
- 品牌: Capni
Brand: Zhiyuan New Energy Description: The APF fan speed automatically adjusts according to the output power and temperature. In standby mode, the fan runs at a low speed, reducing operating noise and extending the service life of components.
Working principle
Active Power Filter (abbreviated as APF ) Employs modern power electronics technology and is based on high-speed DSP A new type of power harmonic mitigation device developed using digital signal processing technology for devices.
It consists of two main components: an instruction current computation circuit and a compensation current generation circuit. By using external current transformers, the circuit detects in real time the harmonic currents and reactive currents at various frequencies in the power grid, thereby obtaining the corresponding instruction currents. The instruction current computation circuit continuously monitors the currents flowing in the line, converts the analog current signals into digital signals, and then sends these digital signals to a high-speed digital signal processor ( DSP ) Process the signal to separate harmonics from the fundamental wave, and use pulse-width modulation ( PWM ) The signal form sends a drive pulse to the compensation current generation circuit, driving... IGBT or IPM The power module generates a compensation current that is equal in magnitude to the harmonic current in the grid but opposite in polarity, injecting it into the grid to compensate for or cancel out the harmonic currents, thereby actively eliminating power harmonics.
APF The system mainly includes the main... Relay KA1 Precharge relay KA2、 Precharge resistor R Filter inductor L Voltage-type PWM Rectifier bridge ( VSR ) and DC bus capacitance C Wait.
The system diagram is shown in the figure. 1-2 As shown, the resistor R For the system’s pre-charge resistor, when... KA2 After closing, the system bus capacitor voltage charges slowly. K A1 Control the main circuit while simultaneously connecting the precharge resistor. R Short circuit; An inductor is a power-transfer interface component between power converters and power systems. On the one hand, it serves as an energy-storage element; on the other hand, it filters out high-frequency switching ripple currents. Voltage-type PWM The rectifier bridge is The power conversion component of the APF, composed of insulated-gate bipolar transistors (IGBTs), employs space vector pulse width modulation (SVPWM) technology to drive the IGBTs and generate a compensation current waveform. The DC capacitor module stores the DC energy produced by the IGBT power conversion module.
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More features, more modes
Ø Harmonic compensation, reactive power compensation, and harmonic-reactive power joint compensation—all in one device; multi-purpose functionality.
Ø Equipped with harmonic subharmonic compensation function, allowing setting of reactive power compensation ratio;
Ø High-definition 7-inch Chinese-color touch screen that displays system and device operating parameters in real time;
Comprehensive protection features to enhance user application stability.
Ø An effective-value peak dual-setting automatic current-limiting algorithm that can automatically activate when the harmonic current of the load exceeds the device’s output. Transfer the device Out of limits in 100% output, no risk of overload;
Ø Equipped with comprehensive protection features, including overcurrent, overvoltage, undervoltage, and overtemperature protection, ensuring the system operates safely and reliably.
Advanced control strategies and topological structure design
Ø An improved detection technique based on instantaneous reactive power theory, which can detect harmonic currents in real time, automatically track changes in load harmonics, and features high controllability and rapid responsiveness.
Ø It employs an LCL topology filter that, even when harmonic currents are present at the output, does not introduce high-frequency IGBT switching harmonics or cause resonance, and is suitable for any on-site grid system impedance.
Highly integrated, modular, and serialized.
Ø Modular design, compact size and lightweight, high power density, and easy installation and maintenance;
Ø It can be flexibly combined and paralleled to meet different capacity requirements, enhancing equipment reliability and maintainability while achieving standardized production, thereby greatly simplifying system installation and maintenance.
Ø Independent air duct design for each module effectively prevents environmental dust from adhering and enhances the product’s heat dissipation efficiency.
Advanced user experience
Ø The device features a self-diagnosis and self-startup function. It is capable of automatically recovering from a shutdown caused by factors other than device malfunctions. Before initiating self-recovery, the device will perform an automatic diagnosis of both the external power grid and itself; only after passing the diagnostic test can it proceed with self-startup. If the device attempts self-recovery three times within 30 minutes but fails each time to start up normally, it will shut down, transmit a device failure alarm to the host computer, and illuminate its own fault indicator light.
Ø IoT monitoring function: The device can collect data—including three-phase system voltage, current, active power, reactive power, power factor, harmonic content, and harmonic current output—at specified time intervals, and upload this data to a database via a GPRS module. The terminal web page and mobile app can display both current and historical data, provide necessary data filtering functions, and allow data export in Word or PDF format. They can also display and record current and historical faults. The remote app and terminal web page enable users to perform essential control operations and parameter settings on the device, such as start/stop commands and overcurrent threshold adjustments.
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Input
System voltage ( V )
400V AC
System voltage range
± 10%
Frequency (HZ)
50/60 ±5%
Output and Installation Method
Rated current ( A )
MH
C
30A, 50A, 75A, 100A, 125A ,150A
30A, 50A, 75A, 100A, 125A, 150A, 200A ，
300A, 400A, 500 A, 600A
Type
Rack-mounted module
Complete cabinet
Incoming line method
Rearline
Upstream line / Bottom incoming line / Busbar running through the cabinet top
(The cable entry method for the enclosure must be specified in the contract.)
Performance metrics
Filter rate
≥ 90% ( Within the ordered capacity range, and with harmonic content of the load exceeding the ordered capacity. 30%)
Filtering range
2~5 0 Subharmonics (if you need to address even-order harmonics, please specify when placing your order)
Full response time
≤ 10ms
Instant response time
≤ 100us
Dynamic current
1.2 Rated capacity output of the dual-filter, 1min
Power factor setting compensation
Be equipped with
Inductive or capacitive compensation
Optional
Protection
Overload protection
Automatic rate limiting in 100% Rated output
Other protections
Overvoltage protection, undervoltage protection, overtemperature protection
Operating mode
Single-unit or parallel operation
Okay.
Display and Operation
Display interface
7 Inch touchscreen
Display status
Current, voltage, power, harmonic distortion rate, and more
Operation
Multiple operation mode options, remote or local.
Communication ( RS485 Interface)
Modbus-RTU It features a remote monitoring interface and a backend database, enabling users to conveniently monitor various operating parameters of the device from internet-connected terminals.
Phase Sequence Adaptive
Be equipped with
Environmental conditions
Protection level
IP20 (Customizable)
Operating ambient temperature
-10 Celsius ~40 Celsius
Storage / Transportation temperature
-40 Celsius ~60 Celsius
Work / Storage humidity
Relative humidity 20~95% No condensation / Relative humidity 10~95%
Altitude
1000m The following (derating required for higher altitudes)
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