Static Reactive Power Compensation of Generator Design Based on TMS320LF2407

2015 ◽  
Vol 734 ◽  
pp. 692-696 ◽  
Author(s):  
Yong Tao Liu ◽  
Hui Jun Wang ◽  
Jia Liu ◽  
Wei Wei Xu

In this paper, we study a kind of method which using DSP processor to control the reactive power compensation of generator. In the main circuit, power electronic switching devices on all control type (IGBT) is used as the main device of inverter, and controlled by SVPWM technology on and off to produce pulse. The generator to a digital signal processor as the core processor, the processor can quickly complete the data processing and real-time data sampled signal calculation tasks, the power system to achieve a fast response of the dynamic compensation, given the various modules of the system program flowchart.

2021 ◽  
Vol 20 (1) ◽  
pp. 34-42
Author(s):  
Osama Ahmed ◽  
Abdul Wali Abdul Ali

A power system suffers from losses that can cause tragic consequences. Reactive power presence in the power system increases system losses delivered power quality and distorted the voltage. As a result, many studies are concerned with reactive power compensation. The necessity of balancing resistive power generation and absorption throughout a power system gave birth to many devices used for reactive power compensation. Static Var Compensators are hunt devices used for the generation or absorption of reactive power as desired. SVCs provide fast and smooth compensation and power factor correction. In this paper, a Fuzzified Static Var Compensator consists of Thyristor Controlled Reactor (TCR) branch and Thyristor Switched Capacitors branches for reactive power compensation and power factor correction at the load side is presented. The system is simulated using Simulink using a group of blocks and equations for measuring power factor, determining the weightage by which the power factor is improved, determining the firing angle of TCR branch, and capacitor configuration of TSC branches. Furthermore, a hardware prototype is designed and implemented with its associated software; it includes a smart meter build-up for power monitoring, which displays voltage, current, real power, reactive power and power factor and SVC branches with TRIAC as the power switching device. Lastly, static and dynamic loads are used to test the system's capability in providing fast response and compensation. The simulation results illustrated the proposed system's capability and responsiveness in compensating the reactive power and correcting the power factor. It also highlighted the proportional relation between reactive power presence and the increased cost in electricity bills. The proposed smart meter and SVC prototypes proved their capabilities in giving accurate measurement and monitoring and sending the data to the graphical user interface through ZigBee communication and power factor correction. Reactive power presence is an undesired event that affects the equipment and connected consumers of a power system. Therefore, fast and smooth compensation for reactive power became a matter of concern to utility companies, power consumers and manufacturers. Therefore, the use of compensating devices is of much importance as they can increase power capacity, regulate the voltage and improve the power system performance.


2005 ◽  
Vol 14 (05) ◽  
pp. 1027-1036
Author(s):  
JASVIR SINGH ◽  
DAVINDER PAL SHARMA

This paper presents the computer-aided simulation and implementation of Modulus Encoder for V.90 digital modem transmitter, which is a device that performs Multiple Modulus Conversion (MMC) process. The present work deals with the development of an efficient algorithm for MMC process used by modulus encoder of V.90 digital modem transmitter, the corresponding assembly program development (source code generation), its simulation on simulator of Code Composer Studio and finally the implementation of modulus encoder on Digital Signal Processor (DSP). The practical results match with the simulated as well as theoretically predicted results, which confirms successful implementation of modulus encoder of V.90 digital modem transmitter on DSP. The implementation parameters like the total program execution time, data memory and program memory used for the present implementation have been presented.


Author(s):  
Abidaoun H. Shallal ◽  
Assaad F. Nashee ◽  
Aws Ezzaldeen Abbas

In the industrial application, the induction motors (IMs) and the digital signal processing (ZQ28335) combination are very important in the scientific field. Two thirds of consumption of electricity is due to motor driven equipment. The direct torque control (DTC) is the standard of the industry and it has fast response control system applications. The drawback of DTC is the flux and torque ripples in the measurements. The scalar control can be considered as a solution to this drawback but with poor response. Torque and speed of IM are controlling individually, the variable speed drive (VSDs) is used. This occurs with variation of the voltage and frequency of IM supply. To decrease the levels of flux and torque ripples, 3-level inverters represent an attractive technique. The compromise of a huge flux and torque at the beginning level and low values at steady state of operation is crucial to ensure better stability with feedback linearization of the nonlinear behavior. In this paper, VSD with DTC IM with multilevel inverter with the newest version of ZQ28335 digital signal processor (DSP) is proposed. Emulation and the results of experiment through DSP ZQ28335 make certain correct dynamic response to the operations of torque and flux.


2014 ◽  
Vol 933 ◽  
pp. 543-547
Author(s):  
Jun Ye ◽  
Hong Liang Sun ◽  
Xiao Jun Li ◽  
Xiao Ming Cheng

According to the power dedicated collection methods to large enterprise customers, special transformer remote data acquisition and alarm systems is proposed in this paper. A high precision signal acquisition module, DSP digital signal processor, Siemens GPRS module, VC + + software, MySQL database, used to design a comprehensive data acquisition and alarm system. The system can be used for data acquisition and remote communication special transformer operation. System software can provide real-time monitoring, special transformers, and an alarm sound and light. The operator can monitor, reactive power compensation, according to the TOU and load adjustment power factor adjustment to the business to conserve electricity. The system is proved to be reliable and stable.


Author(s):  
Roland Y. Siegwart ◽  
Raoul J. P. Herzog ◽  
René Larsonneur

In turbomachinery application Active Magnetic Bearings (AMB) have become an interesting alternative to conventional bearings. They not only offer an excellent solution to suspend the rotor, but also allow for sophisticated real-time data acquisition and monitoring with no additional hardware within the machine. The present paper describes a digital controller environment for active magnetic bearing systems. The controller computer consists of a digital signal processor board with a fast parallel link to a PC. Special software has been developed to directly interfaces the control program to the software package MATLAB1 which is used on the host computer for data processing, identification and controller layout. These facilities are used to achieve time and frequency domain measurements for fast on-site tuning and data monitoring. Different examples are presented to demonstrate these powerful tools. Possible procedure for future system identification are discussed.


Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 134 ◽  
Author(s):  
Chao-Tsung Ma ◽  
Zhen-Huang Gu

Renewable energy (RE)-based power generation systems and modern manufacturing facilities utilize a wide variety of power converters based on high-frequency power electronic devices and complex switching technologies. This has resulted in a noticeable degradation in the power quality (PQ) of power systems. To solve the aforementioned problem, advanced active power filters (APFs) with improved system performance and properly designed switching devices and control algorithms can provide a promising solution because an APF can compensate for voltage sag, harmonic currents, current imbalance, and active and reactive powers individually or simultaneously. This paper demonstrates, for the first time, the detailed design procedure and performance of a digitally controlled 2 kVA three-phase shunt APF system using gallium nitride (GaN) high electron mobility transistors (HEMTs). The designed digital control scheme consists of three type II controllers with a digital signal processor (DSP) as the control core. Using the proposed APF and control algorithms, fast and accurate compensation for harmonics, imbalance, and reactive power is achieved in both simulation and hardware tests, demonstrating the feasibility and effectiveness of the proposed system. Moreover, GaN HEMTs allow the system to achieve up to 97.2% efficiency.


2013 ◽  
Vol 443 ◽  
pp. 329-332
Author(s):  
Chun Ping Wang

By studying the developmental actuality of reactive power compensation system in electric power system, with research on the theory and mode of reactive power compensation, this paper proposes a kind of static var compensation controller, which is based on high-performance, low-power microcontroller ADUC836It adopts nine-zone graph theory as the control tactics of voltage and reactive power. This new designed compensation controller can be connected with GPRS module by RS232 /485, thus the purpose of the real-time data transmission and exchange with the main control center is achieved. The whole system obtains the advantages of simple hardware structure, low price, easy software programming and excellent anti-interference ability.


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