Enhanced Performance of a Stand-Alone Gas-Engine Generator Using Virtual Synchronous Generator and Energy Storage System

Hlaing, Htar Su; Liu, Jia; Miura, Yushi; Bevrani, Hassan; Ise, Toshifumi

doi:10.1109/access.2019.2957890

Cited by 21 publications

(8 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, in this setup, only the load side of the rectifier can be controlled, while the generator side rectifier remains uncontrollable. This may lead to torque fluctuations during the transient operations [193]. Consequently, a new kind of rectifier that allows control on both sides has been proposed by replacing the diode with the insulated gate bipolar transistors (IGBTs) to reduce the current and voltage variations, as well as the grid frequency, as shown in Figure 19.…”

Section: Power Grid Control and System Energy Managementmentioning

confidence: 99%

Transient Performance of Gas-Engine-Based Power System on Ships: An Overview of Modeling, Optimization, and Applications

Wu,

Li,

Chen

et al. 2023

JMSE

View full text Add to dashboard Cite

Liquefied natural gas (LNG) is widely regarded as the midterm solution toward zero-carbon transportation at sea. However, further applications of gas engines are challenging due to their weak dynamic load performance. Therefore, the comprehension of and improvements in the dynamic performance of gas-engine-based power systems are necessary and urgent. A detailed review of research on mechanisms, modeling, and optimization is indispensable to summarize current studies and solutions. Developments in engine air-path systems and power system load control have been summarized and compared. Mechanism studies and modeling methods for engine dynamic performance were investigated and concluded considering the trade-off between precision and simulation cost. Beyond existing studies, this review provides insights into the challenges and potential pathways for future applications in decarbonization and energy diversification. For further utilization of clean fuels, like ammonia and hydrogen, the need for advanced air–fuel ratio control becomes apparent. These measures should be grounded in a deep understanding of current gas engines and the combustion characteristics of new fuels. Additionally, the inherent low inertia feature of electric power systems, and consequently the weak dynamic performance when adopting renewable energies, must be considered and studied to ensure system reliability and safety during transient conditions.

show abstract

Section: Power Grid Control and System Energy Managementmentioning

confidence: 99%

Transient Performance of Gas-Engine-Based Power System on Ships: An Overview of Modeling, Optimization, and Applications

Wu,

Li,

Chen

et al. 2023

JMSE

View full text Add to dashboard Cite

show abstract

“…GFMs allow GFLs, other GFMs, and SGs to coexist in the same system [2]. GFMs can be categorized as droop control inverters [3]- [6], virtual synchronous inverters [7]- [30], and virtual oscillator inverters [31].…”

Section: Against a Background Of Concerns About Global Climate Change...mentioning

confidence: 99%

“…The characteristics of VSGs with a real SG are not clear. Referene [30] characterized a real stand-alone gasengine generator using a VSG and energy storage system, but in a small-scale system. Motivated by the above issues, the following novelties are presented to contribute to the body of knowledge.…”

Section: Against a Background Of Concerns About Global Climate Change...mentioning

confidence: 99%

Field Demonstration of Parallel Operation of Virtual Synchronous Controlled Grid-Forming Inverters and a Diesel Synchronous Generator in a Microgrid

et al. 2022

View full text Add to dashboard Cite

With the growing shift toward renewable energy, attention focused on the disadvantages of current control inverter-based distributed generators, such as lack of grid-forming ability and inertia. To provide inertia support and grid-forming ability, virtual synchronous generators (VSGs) have been proposed. Various control methods related to VSGs have been reported, and various research challenges have been evaluated. However, only a few experimental demonstrations have been addressed. Recommended practices for VSGs were launched as IEEE Standard Project 2988 on March 25, 2021, with VSGs considered to be a new technology that is nearly ready to be put into practical use. Therefore, experimental demonstrations on a real-scale grid are important for establishing a technical standard for VSGs. In this study, a grid was built by simulating an actual microgrid on an approximately 1:1 power capacity scale. In the simulated grid, 125 kVA was provided by a diesel SG, five 20 kVA inverters with a battery energy system (BES) were used, and the power generation penetration of the inverter BES units achieved 44.4%. Six different penetration scenarios for operation of a grid forming inverter with BES (GFM-BES) and a grid following inverter with BES (GFL-BES) were evaluated comparatively. System inertia, and transient and steady state power sharing characteristics affected by different degrees of GFM-BES penetration under a sudden load change were demonstrated. Moreover, characteristics related to grid forming, synchronization, frequency regulation, and power regulation were demonstrated through field tests. The simulations and experiments also evaluated the inertia constant of a diesel SG, which is expected to be helpful for future simulations on this topic. The findings of this paper provide important instructions for engineers to model, design, and test distributed generators.INDEX TERMS Distributed power generation, microgrid, diesel synchronous generator, virtual synchronous generator (VSG), parallel operation, grid-forming, inertia, experiment demonstration.

show abstract

“…In most previous research works, the VSG control method is employed in micro-grids connecting various energy resources in parallel [33][34][35][36][37]. Only some research works are focused on using the VSG method for stand-alone systems considering the characteristics of the energy resources [38][39][40]. In Reference [38], the VSG control is proposed for the control of a grid side converter for a full converter wind turbine (FCWT).…”

Section: Introductionmentioning

confidence: 99%

“…In Reference [39], the problems of matching photovoltaic (PV) output and load as well as dc voltage collapse are solved by the VSG control in a stand-alone PV system. In Reference [40], a VSG-controlled inverter is applied for the control of a load side converter of a stand-alone gas engine generator. The virtual inertia provided by the VSG control performs a smooth generator power transition during load changes.…”

Section: Introductionmentioning

confidence: 99%

PMSG Control for a Stand-Alone Gas Engine Generator Using Active Rectifier and VSG-Controlled Inverter

et al. 2020

Self Cite

View full text Add to dashboard Cite

The engine generator system with a diode rectifier causes harmonic currents in the generator which can affect generator efficiency and may produce torque oscillations. Using an active rectifier instead of a diode rectifier helps us to improve the current waveforms. In this paper, an active rectifier is used for a stand-alone gas engine generation system with a permanent magnet synchronous generator (PMSG). The generator side converter and the load side converter can be controlled separately to achieve high performance and reliability of the system. In the proposed control framework, the generator side converter is controlled by means of a current vector control method in a cascade structure with the synchronous reference frame (dq- frame). In the proposed control scheme, the dc link voltage is controlled by the generator side converter. For load side converter control, the concept of virtual synchronous generator control method is adopted to support a smooth power transient during the load changes. To verify the usefulness of the proposed control structure, using PSCAD software (version 4.2.1), the system transient responses with both a diode rectifier and an active rectifier are investigated under loading and load removal cases. Moreover, for the system with an active rectifier, the transient response of the system with different vector control strategies of PMSG is also investigated.

show abstract

Enhanced Performance of a Stand-Alone Gas-Engine Generator Using Virtual Synchronous Generator and Energy Storage System

Cited by 21 publications

References 23 publications

Transient Performance of Gas-Engine-Based Power System on Ships: An Overview of Modeling, Optimization, and Applications

Transient Performance of Gas-Engine-Based Power System on Ships: An Overview of Modeling, Optimization, and Applications

Field Demonstration of Parallel Operation of Virtual Synchronous Controlled Grid-Forming Inverters and a Diesel Synchronous Generator in a Microgrid

PMSG Control for a Stand-Alone Gas Engine Generator Using Active Rectifier and VSG-Controlled Inverter

Contact Info

Product

Resources

About