Research on VSC-HVDC double closed loop controller based on variable universe fuzzy PID control

Liang, Haifeng; Dong, Yue; Cao, Dengqing

doi:10.1109/cieec.2017.8388522

Cited by 7 publications

(5 citation statements)

References 11 publications

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“…The structure of inner current loop is shown in Figure 3 [24]. In Figure 3, V cd and V cq are the d,q axis voltage component of converters and V od and V oq are the d,q axis voltage components of the filter; L f is the inductance of filter; K ip and K ii are the proportional and integral parameters of the proportional-integral (PI) controller.…”

Section: Pq Control Methodsmentioning

confidence: 99%

Modeling of Multiple Master–Slave Control under Island Microgrid and Stability Analysis Based on Control Parameter Configuration

Liang¹,

Yue²,

Huang³

et al. 2018

Energies

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Abstract:The stable operation of a microgrid is crucial to the integration of renewable energy sources. However, with the expansion of scale in electronic devices applied in the microgrid, the interaction between voltage source converters poses a great threat to system stability. In this paper, the model of a three-source microgrid with a multi master-slave control method in islanded mode is built first of all. Two sources out of three use droop control as the main control source, and another is a subordinate one with constant power control which is also known as real and reactive power (PQ) control. Then, the small signal decoupling control model and its stability discriminant equation are established combined with "virtual impedance". To delve deeper into the interaction between converters, mutual influence of paralleled converters of two main control micro sources and their effect on system stability is explored from the perspective of control parameters. Finally, simulation and analysis are launched and the study serves as a reference for parameter setting of converters in a microgrid.

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Section: Pq Control Methodsmentioning

confidence: 99%

Modeling of Multiple Master–Slave Control under Island Microgrid and Stability Analysis Based on Control Parameter Configuration

Liang¹,

Yue²,

Huang³

et al. 2018

Energies

Self Cite

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“…This is achieved by taking the system nonlinearities into account. By incorporating four blocks of decoupling gains, the outer loop of conventional VCC is enhanced to obtain better voltage regulation along with increased average power [34][35][36].This method suffers from the limitations of ignoring sudden changes during the normal operation of grid and asymmetrical faults [37][38][39].…”

Section: Advanced Vector Current Controllermentioning

confidence: 99%

Voltage Source Converter based High Voltage Direct Current Transmission: A Comprehensive Review of Control Strategies, Developments and Trends

Gangikunta,

Murugan

et al. 2024

E3S Web of Conf.

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The continuous increasing progress in high power and high voltage semiconductor devices leads to have a substantial impact on optimization and effective management of electric grids. These developments have great influence on High Voltage Direct Current (HVDC) and flexible ac controller technologies. This article gives an outline of the innovations in Voltage source Converter (VSC) based HVDC technology. VSC based HVDC technology offers decent advantages which includes interconnection of asynchronous networks, bulk power transmission and voltage stability support. VSC based HVDC technology niche utilities to grab opportunities in incorporating large scale renewable energy sources to the grid, especially on shore /offshore wind energy to the grid. Furthermore, VSC-based HVDC technology is essential for maintaining voltage stability in networks of interconnected grids. In the face of changing loads and the incorporation of renewable energy, these systems help to maintain grid dependability and resilience by offering dynamic voltage management and wattless power support.This article highlights the transformative potential of VSC-based HVDC technology in modernizing and future-proofing electric grids. By leveraging the latest innovations in semiconductor devices and control technologies, VSC-based HVDC systems empower grid operators to overcome existing challenges and embrace the opportunities presented by the evolving energy landscape.

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“…The conventional standard control of an LC ‐filter GVSI in the dq reference frame is developed based on a simplified GVSI system model obtained from (2a, 2b) by neglecting capacitor impact. It typically has two loops (Figure 4): an inner current loop and an outer active/reactive power loop 23 . The power loop generates d ‐ and q ‐axis current references.…”

Section: Circulating Current and Conventional Controlmentioning

confidence: 99%

Control of grid‐connected inverters for circulating current suppression using artificial neural network and conventional control methods

Barr

2021

Int Trans Electr Energ Syst

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Summary Today, grid‐connected inverters are widely used in renewable energy systems, distributed generation systems, and microgrids. Traditionally, control of a grid‐connected inverter is developed using proportional‐integral controllers in the dq reference frame. However, in many applications, a connection from the dc neutral point to the ground is needed, and in some applications, the inverters are operated in parallel over the DC bus such as the bidirectional converters in hybrid dc and ac microgrids. For such a situation, circulating current will appear, and control design in dq0 reference frame would be needed to suppress the circulating current. This article presents a novel neural network control design in dq0 reference frame and compared it with conventional control methods. The proposed neural network control is developed based on the full state‐space equation of the grid‐connected inverter system and is trained to implement optimal control based upon approximate dynamic programming. Compared to the conventional control, the neural network control responds faster, is able to suppress the circulating current, and preserves adequate power quality.

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Research on VSC-HVDC double closed loop controller based on variable universe fuzzy PID control

Cited by 7 publications

References 11 publications

Modeling of Multiple Master–Slave Control under Island Microgrid and Stability Analysis Based on Control Parameter Configuration

Modeling of Multiple Master–Slave Control under Island Microgrid and Stability Analysis Based on Control Parameter Configuration

Voltage Source Converter based High Voltage Direct Current Transmission: A Comprehensive Review of Control Strategies, Developments and Trends

Control of grid‐connected inverters for circulating current suppression using artificial neural network and conventional control methods

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