APF有源電力濾波器

APF有源電力濾波器是基于電壓源逆變器的新型電力電子諧波濾除裝置，通過實(shí)時(shí)檢測(cè)電網(wǎng)中由非線性負(fù)載產(chǎn)生的電流波形，分離出諧波電流部分，并通過IGBT逆變器輸出反相

補(bǔ)償電流，實(shí)現(xiàn)濾除諧波的功能。另外，APF還可以提供超前或滯后的無功電流，用于改善電網(wǎng)的功率因數(shù)和實(shí)現(xiàn)動(dòng)態(tài)無功補(bǔ)償。和LC型的無源濾波相比，該產(chǎn)品是主動(dòng)型補(bǔ)償

裝置，動(dòng)態(tài)性能好，安全性高，適應(yīng)性強(qiáng)。

  1、APF內(nèi)部均采用國(guó)際著名品牌、技術(shù)成熟、性能先進(jìn)的元器件。  

2、獨(dú)立于電網(wǎng)系統(tǒng)阻抗之外，不受電網(wǎng)系統(tǒng)阻抗影響，不發(fā)生諧振與諧波電壓放大，安全性好。 

3、控制器采用了DSP和FPGA芯片，采用矢量篩選技術(shù)，可全部濾除2次到50次諧波，或選擇濾除特定次數(shù)諧波。 

4、內(nèi)置諧波補(bǔ)償、無功補(bǔ)償、不平衡補(bǔ)償?shù)榷喾N補(bǔ)償功能，用戶可自行設(shè)定選擇補(bǔ)償功能。 

5、裝置永不過流，在濾波的同時(shí)，能完全避免過補(bǔ)償。可根據(jù)負(fù)荷變化，自動(dòng)合理限制補(bǔ)償電流，既具有良好的補(bǔ)償性能，又可保證裝置安全可靠工作。 

6、采用先進(jìn)的防止與系統(tǒng)發(fā)生諧振的控制方法，徹底消除了裝置本身與系統(tǒng)發(fā)生諧振的可能，提高了供電系統(tǒng)的可靠性。 

7、具備完整的保護(hù)功能，包括過載、過電壓、欠電壓、過電流等，以及自診斷功能。 

8、具有緩啟動(dòng)控制回路，避免啟動(dòng)瞬間過大的沖擊電流，并限制在額定范圍內(nèi)。 

9、采用通用的modbus遠(yuǎn)程通信協(xié)議，通信接口為RS485/232和CAN總線。 

10、擴(kuò)展性能好，可多臺(tái)APF并聯(lián)應(yīng)用。 

11、友好的操作和顯示人機(jī)界面，可提供完整的現(xiàn)場(chǎng)信息。 

12、獨(dú)創(chuàng)的智能啟動(dòng)系統(tǒng)，具備一鍵并網(wǎng)和系統(tǒng)斷電裝置自動(dòng)投入等功能。 

13、電纜可從裝置柜體頂部或底部進(jìn)入，安裝靈活。

APF active power filter

APF active power filter is a new power electronic harmonic filter based on the voltage source inverter, through the load current waveform generated by the nonlinear real-time detection of power grid, to separate the harmonic current, and through the IGBT inverter output phase

Compensating current to realize the function of filtering harmonics. In addition, the APF can also provide pre or lagging reactive current, which is used to improve the power factor of the grid and realize dynamic reactive power compensation. Compared with LC passive filter, this product is active compensation

The utility model has the advantages of good dynamic performance, high safety and strong adaptability.

1, APF internal use of internationally renowned brands, mature technology, advanced performance components.

2, independent of the power grid system impedance, not affected by the power grid system impedance, resonance and harmonic voltage amplification, safety is good.

3, the controller adopts DSP and FPGA chip, adopts vector screening technology, can filter out 2 to 50 harmonics, or choose to filter a specific number of harmonics.

4, built-in harmonic compensation, reactive power compensation, imbalance compensation and other compensation functions, users can set the choice of compensation function.

5, the device never over flow, while filtering, can completely avoid over compensation. The utility model can automatically and reasonably limit the compensating current according to the change of load, and has the advantages of good compensation performance and safe and reliable operation of the device.

6, the use of advanced prevention and system resonance control method, completely eliminates the possibility of resonance between the device itself and the system, and improve the reliability of the power supply system.

7 、 with complete protection functions, including overload, over-voltage, undervoltage, over-current, and self diagnostic function.

8 、 with slow start control circuit, to avoid starting instant excessive impact current, and limited within the rated range.

9, the use of universal MODBUS remote communication protocol, communication interface for RS485/232 and CAN bus.

10, the expansion performance is good, can many APF parallel application.

11 、 friendly operation and display man-machine interface, can provide complete field information.

12, the original intelligent start-up system, with one key grid connected and system power failure device, automatic input and other functions.

13 、 the cable can enter from the top or bottom of the device cabinet, and the installation is flexible.