Design of a Grid-Connected Inverter for a Hybrid Renewable Power System

2010 ◽  
Vol 108-111 ◽  
pp. 1471-1476
Author(s):  
Jin Gang Han ◽  
Dong Kai Peng ◽  
Ji Fang Li ◽  
Tian Hao Tang
Keyword(s):  
Power System ◽  
Renewable Energy Sources ◽  
Electronic System ◽  
Living Environment ◽  
Voltage Source ◽  
Energy Sources ◽  
Hydrogen Energy ◽  
Power Electronic ◽  
Renewable Power ◽  
Grid Connected Inverter

For the depletion of the limited traditional energy and the deterioration of the living environment, it is a focus of attention of the word for utilization of clean and renewable energy sources such as wind, solar and hydrogen Energy. In this paper, the design of a robust voltage source grid-connected converter is developed. And it is used in a hybrid renewable power system (HRPS). The power electronic system and the control system are introduced. Finally, some experimental results of the system are presented.

scholarly journals Converter-driven Stability Analysis of Power Systems Integrated with Hybrid Renewable Energy Sources

2021 ◽  
Author(s):  
Jianqiang Luo ◽  
Yiqing Zou ◽  
Siqi Bu
Keyword(s):  
Renewable Energy ◽  
Stability Analysis ◽  
Power Systems ◽  
Power System ◽  
Dynamic Models ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Power Electronic ◽  
Modal Interaction ◽  
Hybrid Renewable Energy

Various renewable energy sources such as wind power and photovoltaic (PV) have been increasingly integrated into the power system through power electronic converters in recent years. However, power electronic converter-driven stability issues under specific circumstances, for instance, modal resonances might deteriorate the dynamic performance of the power systems or even threaten the overall stability. In this paper, the integration impact of a hybrid renewable energy source (HRES) system on modal interaction and converter-driven stability is investigated in an IEEE 16-machine 68-bus power system. Firstly, an HRES system is introduced, which consists of full converter-based wind power generation (FCWG) and full converter-based photovoltaic generation (FCPV). The equivalent dynamic models of FCWG and FCPV are then established, followed by the linearized state-space modeling. On this basis, converter-driven stability analyses are performed to reveal the modal resonance mechanisms of the interconnected power systems and the modal interaction phenomenon. Additionally, time-domain simulations are conducted to verify effectiveness of dynamic models and support the converter-driven stability analysis results. To avoid detrimental modal resonances, an optimization strategy is further proposed by retuning the controller parameters of the HRES system. The overall results demonstrate the modal interaction effect between external AC power system and the HRES system and its various impacts on converter-driven stability.

scholarly journals Estimating of the size of subsides for the use of hydrogen energy technologies for potential consumers

2021 ◽  
Vol 289 ◽  
pp. 01005
Author(s):  
A.S. Grachev
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Hydrogen Energy ◽  
Energy Technologies ◽  
Electrical Part ◽  
Hydrogen Technologies

This article discusses the prospects for the use of hydrogen technologies in conjunction with renewable energy sources. A sim plified model of the power system of an isolated consumer using hydrogen technologies has been compiled. An experimental calculation of the electrical part of the system has been carried out. Based on the results obtained, conclusions are drawn about the further improvement of this model.

scholarly journals Design and implementation of an improved power‐electronic system for feeding loads of smart homes in remote areas using renewable energy sources

2021 ◽  
Vol 15 (1) ◽  
pp. 1-16
Author(s):  
Behnam Zamanzad Ghavidel ◽  
Mohammad Maalandish ◽  
Seyed Hossein Hosseini ◽  
Mehran Sabahi ◽  
Behnam Mohammadi‐Ivatloo
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Smart Homes ◽  
Electronic System ◽  
Energy Sources ◽  
Power Electronic ◽  
Remote Areas ◽  
Design And Implementation

scholarly journals Converter-Driven Stability Analysis of Power Systems Integrated with Hybrid Renewable Energy Sources

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4290
Author(s):  
Jianqiang Luo ◽  
Yiqing Zou ◽  
Siqi Bu ◽  
Ulas Karaagac
Keyword(s):  
Renewable Energy ◽  
Stability Analysis ◽  
Power Systems ◽  
Power System ◽  
Dynamic Models ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Power Electronic ◽  
Modal Interaction ◽  
Hybrid Renewable Energy

Renewable energy sources such as wind power and photovoltaics (PVs) have been increasingly integrated into the power system through power electronic converters in recent years. However, power electronic converter-driven stability has issues under specific circumstances, for instance, modal resonances might deteriorate the dynamic performance of the power systems or even threaten the overall stability. In this work, the integration impact of a hybrid renewable energy source (HRES) system on modal interaction and converter-driven stability was investigated in an IEEE 16-machine 68-bus power system. In this paper, firstly, an HRES system is introduced, which consists of full converter-based wind power generation (FCWG) and full converter-based photovoltaic generation (FCPV). The equivalent dynamic models of FCWG and FCPV are then established, followed by linearized state-space modeling. On this basis, converter-driven stability analysis was performed to reveal the modal resonance mechanisms between different renewable energy sources (RESs) and weak grids in the interconnected power systems and the multi-modal interaction phenomenon. Additionally, time-domain simulations were conducted to verify the effectiveness of dynamic models and support the converter-driven stability analysis results. To avoid detrimental modal resonances, a multi-modal and multi-parametric optimization strategy is further proposed by retuning the controller parameters of the multi-RESs in the HRES system. The overall results demonstrate the modal interaction effect between the external AC power system and the HRES system and its various impacts on converter-driven stability.

scholarly journals ЗАСОБИ ЗАБЕЗПЕЧЕННЯ ОПТИМАЛЬНОГО ФУНКЦІОНУВАННЯ ЕЛЕКТРИЧНОЇ СИСТЕМИ ЛОКАЛЬНОГО ОБ’ЄКТУ

2021 ◽  
Vol 148 (4) ◽  
pp. 59-66
Author(s):  
О. П. Кравченко ◽  
Е. Г. Манойлов ◽  
Г. О. Бабич ◽  
Я. С. Малий
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Real Time ◽  
Electronic Monitoring ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Electronic System ◽  
Energy Sources ◽  
Central Processor ◽  
Energy Profiles

Development of electronic monitoring and control system for achieving an effective ratio between electrical energy generation and consumption in the local object power supply system. Methodology. The theory of electrical circuits and electronic circuits were used. Obtaned  results.  The  electronic  system  for  monitoring  and  controlling  power  supply  in  the  local object  power  system  was  developed.  The  system  comprises  three  modules:  central  processor,  module  for monitoring  environment  parameters  and executive module  which  consists  of measuring (current,  voltage) and relay blocks. The central processor processes signals from monitoring and measuring blocks and forms executive  commands  on  relay  block  in  order  to  switch  on/off  consumer  loads  and  electric  generators. Developed systems alowes both maximal power take-off from distributed (renewable) energy sources and flexible  implementation  of  power  consumption  regulation  for  achieving  an  effective  ratio  between  the generation of electrical energy provided by renewable energy sources and the general distribution network, and the total load device consumption in the local object power system. Orginality. The electronic monitoring and controlling system in the local object power system alows providing generated and consumed loads monitoring in the real time. The system provides an ability to form real time  energy  profiles based    on  which  the  control  algorithm  for  executive  block  control is  formed in order to achieve an effective ratio between generation and consumption of electricity in the power system of the local facility.for in   power consumption control system has been developed, which consists of a central processor, monitoring and executive units. The monitoring unit allows you to create energy profiles in real time,  on  the  basis  of  which  the  control  algorithm  in  the  executive  unit  is  formed  in  order  to  achieve  an effective ratio between the electricity  generation and consumption in the local object power system. Practical  value.  As  a  result  of  the  presented  work,  an  electronic  system  for  monitoring  and controling electricity supply in the local object power system with the defined formation of distributed energy sources generation and required consumption profiles in the real time was developed to provide efficient energy  consumption  according  to  the  concepts  of  distributed  electrical  networks  with  renewable  energy sources and Smart House.

scholarly journals Comparison of Virtual Synchronous Generator Strategies for Control of Distributed Energy Sources and Power System Stability Improvement

2021 ◽  
Author(s):  
Guilherme Penha da Silva Júnior ◽  
Thiago Figueiredo do Nascimento ◽  
Luciano Sales Barros
Keyword(s):  
Power Systems ◽  
Power System ◽  
Renewable Energy Sources ◽  
Synchronous Generator ◽  
System Stability ◽  
Control Mode ◽  
Voltage Source ◽  
Energy Sources ◽  
And Performance ◽  
Virtual Synchronous Generator

The high integration of distributed generation (DG) system based on renewable energy sources (RES) in the power system requires changes regarding the control mode of these sources with some urgency. Such changes seek to maintain the stability of the power systems. Thus, there is a demand for using control techniques on DGs/RESs that can mitigate the disturbances caused by low inertia and the lack of control over the dispatched powers. As a solution, one can use virtual synchronous generator (VSG) techniques making the voltage  source inverter (VSI) control behave similarly to the traditional synchronous generator (SG). This paper presents a literature review and performance tests for the main VSG topologies used in DGs/RESs: ISE, VSYNC, VISMA and Synchronverter. The implementation of VSG in the DGs/RESs has made possible increase inertia in the grid and, additionally regulate the active and reactive powers separately and bidirectionally. So, it has been possible to meet power system requirements; being able to operation both grid-connected or island-mode, which is ideal for microgrids. The results obtained confirm the literature reports. It was observed that the Synchronverter topology presented advantages over the other VSG topologies.

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