A Comparative Performance Analysis of PID Tuning Techniques Based on Frequency Response Specification

Deshmukh, Ankit; Vaishnav, S. R.

doi:10.1109/icetet.2009.2

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…Then the values of the K p 1 and K i 1 can be determined with the help of Bode diagram. 23,24 Assuming k AMP = 180 / 3 , C = 600 μ F and r = 0 . 01 Ω , the obtained results are K p 1 = 0 . 001 , K i 1 = 169 . Similar to the fundamental current controller, the n th harmonic controller can be designed.…”

Section: Harmonic Currents Detection and Control Strategymentioning

confidence: 99%

FFT-based selective harmonic current control of AC filter capacitors for audible noise analysis

Han

Sun

Zheng

et al. 2021

Measurement and Control

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With the development of High Voltage Direct Current (HVDC) and ultra HVDC, a growing number of high voltage film filter capacitors have been installed for harmonic suppression. But the capacitors generate severe audible noise in the converters, which has become more and more serious. Then it is important to imitate the practical working situation of capacitors for the research of noise characteristics to improve the capacitive performance in lab. In this paper, a FFT-based harmonic current control method is proposed for audible noise analysis of AC filter capacitor. Firstly, mathematical model of the Harmonic Current Injection System (HCIS) is built based on MATLAB. Then a Fast Fourier Transform (FFT) harmonics detection method is analyzed and used to detect the amplitude and phase of each harmonic considering a number of harmonic currents flowing through AC filter capacitors. Since the amplitude and phase spectrum of capacitor current are obtained, the Proportional Integral (PI) regulator is applied to adjust the specified harmonic amplitude to achieve zero-error control. Then accurate harmonic current can be injected to the tested capacitor and it will help to acquire the noise characteristics of the tested plant. At last, the simulation and experimental results validate the proposed strategy.

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Section: Harmonic Currents Detection and Control Strategymentioning

confidence: 99%

FFT-based selective harmonic current control of AC filter capacitors for audible noise analysis

Han

Sun

Zheng

et al. 2021

Measurement and Control

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show abstract

“…Considering the dynamic response and robustness of the system, we can let the value of bandwidth ω p equals to 5-10 times ω 0 , where ω 0 is the fundamental angular frequency. Then selecting an appropriate phase margin for this system, the values of the proportional coefficient K p1 and integral coefficient K i1 for the fundamental current can be calculated with the help of Bode diagram [25]- [27].…”

Section: Harmonic Current Control Strategymentioning

confidence: 99%

Multiple Harmonic Current Injection System for Audible Noise Analysis of AC Filter Capacitors in Converter Stations

et al. 2020

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The audible noise of AC filter capacitors is one of the major noise sources in High Voltage Direct Current (HVDC) converter stations. In order to avoid the sharp noise of AC filter capacitors, it is necessary to design a Multiple Harmonic Current Injection System (MHCIS) for power capacitors to analyze their audible noise characteristics. Simulating effectively the noise of AC filter capacitors under their actual working conditions in converter stations is the primary target of this proposed MHCIS. To ensure the accuracy of the harmonic currents injected into the power capacitors, each harmonic current is detected and controlled separately. On the basis of the instantaneous reactive power theory, a selective harmonic current detection algorithm is proposed in this paper for the single-phase MHCIS. The amplitude of the selected harmonic current can be tracked timely and exactly in d-q synchronous rotational coordinate system, such that a Proportional Integral (PI) controller can be directly operated to eliminate the steady-state errors. The experimental parameters are usually invariable in this system, the phase deviation of the selected harmonic current is also fixed. Thus the phase angle offset of the corresponding harmonic current can be detected and calculated to compensate the system inherent delay. Owing to the accurate detection and control of multiple harmonic currents, the actual working conditions of AC filter capacitors can be accurately simulated, and the reliable noise analysis results of power capacitors can be obtained. Finally, the proposed selective harmonic current detection and control algorithm is verified by the theoretical analysis, simulation and experimental results. INDEX TERMS AC filter capacitor, current control, harmonic current, synchronous rotating frame.

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“…Therefore, it is named three terms controllers. When PID controller is used, the response will be good, reliable, and robust [8,[10][11][12]. The P controller of PID is used to decrease the disturbance effects on the system output.…”

Section: Introductionmentioning

confidence: 99%

Performance comparison between variants PID controllers and unity feedback control system for the response of the angular position of the DC motor

Mhawesh

2021

IJECE

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This paper proposed a detailed study for the response of angular position of the rotor of a DC motor. It is a comparative analysis to the behavior of the DC motor when the motor is alone and when it is with controllers. Furthermore, a comparison between the responses of controllers themselves. A conventional PID controller which was tuned by using Ziegler and Nichols method was proposed in this paper. Also, Modification PID controllers were proposed in this paper. The modification PID controllers are PI-D controller and I-PD controller. Mathematical calculations were done to get the transfer functions for the DC motor and the controllers. Time domain specifications and figures were obtained for each case by using Matlab program. The obtained results were summarized in tables. This paper determined which the controller is the best one depending on the obtained figures and the time domain specifications.

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A Comparative Performance Analysis of PID Tuning Techniques Based on Frequency Response Specification

Cited by 5 publications

References 5 publications

FFT-based selective harmonic current control of AC filter capacitors for audible noise analysis

FFT-based selective harmonic current control of AC filter capacitors for audible noise analysis

Multiple Harmonic Current Injection System for Audible Noise Analysis of AC Filter Capacitors in Converter Stations

Performance comparison between variants PID controllers and unity feedback control system for the response of the angular position of the DC motor

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