* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download DSTATCOM supported induction generator for improving power
Power factor wikipedia , lookup
Electrification wikipedia , lookup
Spark-gap transmitter wikipedia , lookup
Mercury-arc valve wikipedia , lookup
Ground (electricity) wikipedia , lookup
Electric power system wikipedia , lookup
Stepper motor wikipedia , lookup
Immunity-aware programming wikipedia , lookup
Power inverter wikipedia , lookup
Pulse-width modulation wikipedia , lookup
Electrical ballast wikipedia , lookup
Power engineering wikipedia , lookup
Current source wikipedia , lookup
Electrical substation wikipedia , lookup
Schmitt trigger wikipedia , lookup
Resistive opto-isolator wikipedia , lookup
History of electric power transmission wikipedia , lookup
Variable-frequency drive wikipedia , lookup
Power MOSFET wikipedia , lookup
Opto-isolator wikipedia , lookup
Power electronics wikipedia , lookup
Three-phase electric power wikipedia , lookup
Buck converter wikipedia , lookup
Switched-mode power supply wikipedia , lookup
Surge protector wikipedia , lookup
Voltage regulator wikipedia , lookup
Stray voltage wikipedia , lookup
Alternating current wikipedia , lookup
DSTATCOM supported induction generator for improving power quality Abstract This paper presents an implementation of sliding mode controller (SMC) along with a proportional and integral (PI) controller for a DSTATCOM (Distribution STATic COMpensator) for improving current induced power quality issues and voltage regulation of three-phase selfexcited induction generator (SEIG). The use of SMC for regulating the DC link voltage of DSTATCOM offers various advantages such as reduction in number of sensors for estimating reference currents and the stable DC link voltage during transient conditions. The use of PI controller for terminal voltage control gives the error free voltage regulation in steady state conditions. The voltage regulation feature of DSTATCOM offers the advantages of single point voltage operation at the generator terminals with the reactive power compensation which avoids the saturation in the generator. Other offered advantages are balanced generator currents under any loading condition, harmonic currents mitigation, stable DC link voltage and the reduced number of sensors. The SMC algorithm is successfully implemented on a DSTATCOM employed with a three-phase SEIG feeding single phase or three phase loads. Existing method: The existing method describes that the machine requires variable capacitance across terminals for maintaining the constant terminal voltage from no load to full load condition. In earlier days, the terminal voltage of the induction machine is controlled by switching on and off of passive components such as inductors and capacitors.The drawback of discrete control in the above method is eliminated with the invention of self-commutating solid-state power conducting devices. The use of static VAR compensator with an induction generator has given better voltage control but the size of passive components such as capacitors and inductors has become the major issue. Proposed method: Further Details Contact: A Vinay 9030333433, 08772261612 Email: [email protected] | www.takeoffprojects.com The proposed method describes in the present paper, the DC-link voltage of VSC used as DSTATCOM is regulated by the SMC which suppresses undershoots and overshoots in the DClink voltage. A reduced rating of DC-link capacitor may be used owing to this feature. The terminal voltage of the SEIG is also regulated at a value which lies away from the saturation point of the SEIG (even below the knee voltage). The operation has to be single point voltage operation; therefore, a PI controller is used to attain the reference voltage without any steadystate error. The operation below the knee voltage reduces the magnetising current drawn by the generator and hence increases its capability and reduces the harmonic distortion caused by the magnetising current. Block diagram: Schematic diagram of induction generator supported by VSC-based DSTATCOM. Advantages: DSTATCOM offers various advantages such as reduction in number of sensors for estimating reference currents and the stable DC link voltage during transient conditions. Applications: Further Details Contact: A Vinay 9030333433, 08772261612 Email: [email protected] | www.takeoffprojects.com FACTS use Power Electronic devices and methods are applied to control the high-voltage side of the network for improving the power flow. Extension: Here we used conventional PI controller in controlling of the circuit so in place of that we eplace that one with modern controller of fuzzy logic controller because of the drawbacks of the conventional PI controller. Further Details Contact: A Vinay 9030333433, 08772261612 Email: [email protected] | www.takeoffprojects.com