Machine design and control strategy for wide-speed-range PMSG systems

Two direct voltage control (DVC) strategies for the permanent magnet synchronous generator (PMSG) system are proposed and comparatively studied in this paper. The strategies are especially utilized in variable-speed applications, in order to stabilize the PWM rectifier output voltage on the dc bus. One of the DVC strategies uses hysteresis control (HC) of the dc bus voltage to determine the PWM signals, while the other uses PI control of the dc bus voltage together with the space vector modulation (SVM) to determine the PWM signals. The former strategy exhibits simplicity in both theory and implementation, whilst the latter has better performance on the output dc voltage. Both strategies are analyzed with MTALAB/Simulink and verified by experiments with a laboratory test bench. Keywords-permanent magnet synchronous generator, wide operation speed range, direct voltage control, hysteresis control, space vector modulation

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“…The higher the speed is, the current. Such field weakening operation to PMSG ac terminal voltage and the dc bus reported in [14]. …”

Section: Simulation Study Of Hcmentioning

confidence: 89%

Direct voltage control strategies for variable-speed permanent magnet synchronous generator system

Miao

Shen

2015

2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)

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“…This method can make the unit respond quickly to the load power demand and is widely used in general power plants, hybrid vehicle systems, and marine integrated power systems [7]. The generator sets in these power environments do not require frequent speed regulation, and the prime mover can be selected with sufficiently large specifications [8]. The researchers found the following information regarding the generator sets that make up the vehicle's integrated power system.…”

Section: Introductionmentioning

confidence: 99%

A Compound Control Strategy for an Ultralight Power Generation System

Wen,

Yuan,

Yuan

et al. 2024

Energies

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Ultralight power generation equipment has high requirements for the power density, continuous operation, and transient stability of the whole machine, and there is a direct conflict between high power density and substantial stability control in the power unit design. In order to meet the power density requirements of ultralight power stations, three main problems need to be solved, namely engine speed oscillation and flameout in the process of load power mutation, matching of the generator and engine torque, and stabilizing the voltage waveform of the AC output end. In this paper, we proposed an exquisite compound control strategy for ultralight power generation systems in engines, generators, and inverters. The effectiveness and practicability of the proposed strategy are verified by both simulation and experiment. The results show that the proposed control strategy can effectively solve the instability problem of the ultralight generator set and improve the stability of the system, where response recovery can be achieved within 0.9 s under the conditions of a total load increase or decrease, and the mismatching degree of the generator following the engine is reduced by 90%. The strategy could also guarantee long-term stable operation with high-quality electrical energy output.

show abstract

“…This method can make the unit respond quickly to the load power demand and is widely used in general power plants, hybrid vehicle systems, and Marine integrated power systems [7]. The generator sets in these power environments do not require frequent speed regulation, and the prime mover can be selected with sufficiently large specifications [8]. The researchers found that for the generator sets that make up the vehicle's integrated power system: On the one hand, due to the efficiency of the installed capacity in the car, the power of the engine and the generator is roughly similar when the vehicle needs high-speed bending or rapid acceleration, the sudden increase in the load power of the vehicle may make the electromagnetic torque of the generator as a resistance moment exceed the engine output torque in a short time, and the connecting shaft of the power generation unit is mainly affected by the generator, resulting in the instability of the unit; On the other hand, due to the coupling relationship between the output capacity of the unit and the fuel economy and the speed, the unit needs to switch to different target speed points frequently according to the driving demand [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

An Exquisite Control Strategy for Ultralight Power Generation System

Wen,

Yuan,

Yuan

et al. 2023

Preprint

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Ultralight power generation equipment has high requirements for the power density, continuous operation, and transient stability of the whole machine, and there is a direct conflict between high power density design and substantial stability control in the power unit design. In order to meet the power density requirements of ultra-light power stations, three main problems need to be solved, namely engine speed oscillation and flameout in the process of load power mutation, matching of the generator and engine torque, and stabilizing the voltage waveform of the AC output end. In this paper, we proposed an exquisite control strategy for ultralight power generation systems in engines, generators, and inverters. The effectiveness and practicability of the proposed strategy are verified by both simulation and experiment. The results show that the proposed control strategy can effectively solve the instability problem of the ultralights generator set and improve the stability of the system, where the response recovery can be achieved within 0.9 seconds under the condition of total load increase or decrease, and the mismatching degree of the generator following the engine is reduced by 90%. The strategy could also guarantee long-term stable operation with high-quality electrical energy output.

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Machine design and control strategy for wide-speed-range PMSG systems

Cited by 9 publications

References 6 publications

Direct voltage control strategies for variable-speed permanent magnet synchronous generator system

Direct voltage control strategies for variable-speed permanent magnet synchronous generator system

A Compound Control Strategy for an Ultralight Power Generation System

An Exquisite Control Strategy for Ultralight Power Generation System

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