Wind-solar Hybrid Power Generation System Research Articles

An Efficient Off-grid Express Cabinet Based on Wind-solar Hybrid Power Generation System

In order to effectively solve the shortcomings of traditional express cabinets such as limited service places and seasonal power supply obstacles, this paper studies an off-grid express cabinet using wind-solar complementary principle, which is mainly composed of near-ground and low-speed wind power generation device, solar photovoltaic battery pack, controller, battery pack and DC load. The double-axis tracking solar panels or fixed photovoltaic panels can be used for different regions. At the same time, it can be combined with a near-ground and low-speed wind power generation device to provide a stable power supply for the express cabinets. By programming the control, the power generated by wind-solar hybrid power generation is provided to the load as a priority. The remaining electric energy is stored in the battery pack. The system effectively overcomes the disadvantages of limited-service locations and unstable power supply caused by seasonal barriers in traditional express cabinets. It has the advantages of energy-saving, environmental protection, short payback period, and wide range of supply.

Evaluation of wind-solar hybrid power generation system based on Monte Carlo method

<span lang="EN-US">The application of wind-photovoltaic complementary power generation systems is becoming more and more widespread, but its intermittent and fluctuating characteristics may have a certain impact on the system's reliability. To better evaluate the reliability of stand-alone power generation systems with wind and photovoltaic generators, a reliability assessment model for stand-alone power generation systems with wind and photovoltaic generators was developed based on the analysis of the impact of wind and photovoltaic generator outages and derating on reliability. A sequential Monte Carlo method was used to evaluate the impact of the wind turbine, photovoltaic (PV) turbine, wind/photovoltaic complementary system, the randomness of wind turbine/photovoltaic outage status and penetration rate on the reliability of Independent photovoltaic power generation system (IPPS) under the reliability test system (RBTS). The results show that this reliability assessment method can provide some reference for planning the actual IPP system with wind and complementary solar systems.</span>

Exploring the Regulation Reliability of a Pumped Storage Power Plant in a Wind–Solar Hybrid Power Generation System

In the coming decades, the proportion of wind–solar energy in power system significantly increases, resulting to uncertainties of power fluctuation in abundant wind–solar energy regions. The flexibility operation of Pumped Storage Power Plants (PSPPs) has already been widely recognized to regulate wind–solar power fluctuations; however, less is known about the regulation reliability of the PSPP affected by them. It is a challenge, since various uncertainties exist during this regulation process. Here, a mathematical model with a solar–wind–hydro hybrid power generation system is adopted to investigate the regulation reliability of PSPP. The uncertainties and limitations of model parameters are considered during this process. Five regulation indexes, i.e., rise time, settling time, peak value, peak time and overshoot of the reactive power generator terminal voltage, guide vane opening and angular velocity, are extracted to evaluate the PSSP’s regulation quality. Finally, the PSPP reliability probability affected by parametric uncertainties is presented. The obtained results show that the inertia coefficient is the most sensitivity parameters for the settling time, peak value and peak time with sensitivity index 33.7%, 72.55% and 71.59%, respectively. The corresponding total contribution rate of the top 10 sensitive parameters are 74.45%, 93.45% and 87.15%, respectively. Despite some types of uncertainties not being considered, the results of this research are important for the regulation reliability evaluation of PSPPs in suppressing power fluctuations of wind and solar generation.

Design of clean energy dispatching system for wind and solar storage

In order to optimize the capacity dispatch of energy storage system in grid-connected wind-solar hybrid power generation system, a method for optimizing the capacity of hybrid energy storage system composed of supercapacitors and batteries in grid-connected wind-solar hybrid power generation system is proposed by utilizing the generation data of wind power and photovoltaic and the dispatch data of power grid. Based on the method of Particle Swarm Optimizer (PSO), it was simulated that wind-solar hybrid power joined into the dispatch according to the rules of dispatch system. The best power dispatch was achieved by multi-objective particle swarm optimization (MPSO). The results show that the accuracy of capacity optimization of energy storage system can be improved by considering both the total continuous power loss and the instantaneous power loss. The hybrid energy storage system composed of supercapacitors and batteries can improve the overall security and economy of the power grid.

An Energy Storage Performance Improvement Model for Grid-Connected Wind-Solar Hybrid Energy Storage System.

This study introduces a supercapacitor hybrid energy storage system in a wind-solar hybrid power generation system, which can remarkably increase the energy storage capacity and output power of the system. In the specific solution, this study combines the distributed power generation system and the hybrid energy storage system, while using the static reactive power compensation system and the conductance-fuzzy dual-mode control method to increase output power in stages. At the same time, the optimal configuration model of the wind-solar hybrid power generation system is established using MATLAB/Simulink software. The output power of the microgrid to the wind-photovoltaic hybrid power generation system is calculated by simulation, and the optimization process of each component of the system is simulated. This study mainly uses the static reactive power compensation system and the conductance-fuzzy dual-mode control method to optimize the wind-solar hybrid power generation system. Using MATLAB software simulation verifies the feasibility and rationality of the optimal configuration of the system.

Hybrid Power Generation by Using Solar and Wind Energy: Case Study

Energy is critical to the economic growth and social development of any country. Indigenous energy resources need to be developed to the optimum level to minimize dependence on imported fuels, subject to resolving economic, environmental and social constraints. This led to an increase in research and development as well as investments in the renewable energy industry in search of ways to meet the energy demand and to reduce the dependency on fossil fuels. Wind and solar energy are becoming popular owing to the abundance, availability and ease of harnessing the energy for electrical power generation. This paper focuses on an integrated hybrid renewable energy system consisting of wind and solar energies. Many parts of Libya have the potential for the development of economic power generation, so maps locations were used to identify where both wind and solar potentials are high. The focal point of this paper is to describe and evaluate a wind-solar hybrid power generation system for a selected location. Grid-tied power generation systems make use of solar PV or wind turbines to produce electricity and supply the load by connecting to the grid. In this study, the HOMER (Hybrid Optimization Model for Electric Renewable) computer modeling software was used to model the power system, its physical behavior and its life cycle cost. Computer modeling software was used to model the power system, its physical behavior and its life cycle cost. The hybrid power system was designed for a building at the University of Al-Marj (MARJU). Through the use of simulations, the installation of ten 100-kW wind turbines and 150-KW solar PV was evaluated.

Design and implementation of a wind solar hybrid power generation system

Unmanned aerial vehicles (UAV) are becoming more and more popular. In all sectors of society can see the presence of unmanned aerial vehicles. However, the short flight time and flight distance always restrict the development of UAV. The most imminent and creative work is how to make the perfect combination of new energy technologies with UAVs. In this paper, a wind-solar hybrid power generation system and its operation scheme design are discussed, and the application of the wind solar hybrid power generation system controlled by a single-chip microcomputer is discussed. The experimental results show that this kind of power generation system and its operation scheme are improved compared with the conventional design.

Performance analysis of a wind-solar hybrid power generation system

In order to reduce wind curtailment, a wind-turbine coupled with a solar thermal power system to form a wind-solar hybrid system is proposed in this paper. In such a system, part or all of the curtailed wind power is turned into heat through an electric heater and stored in the thermal storage sub-system of the solar thermal power plant. To simulate and study the performance of the hybrid system, a simulation model of the hybrid system, which consists several modules/sub-models is developed. In addition, a capacity configurations optimization model based on particle swarm optimization algorithm is proposed to maximize the economic performance. An 80 MWe hybrid system in Zhangbei China is selected as the study case. The result shows that when the capacity ratio of the wind power generation to solar thermal power generation, thermal energy storage system capacity, solar multiple and electric heater capacity are 1.91, 13 h, 2.9 and 6 MW, respectively, the hybrid system has the highest net present value of $27.67 M. Correspondingly, compared to the conventional coal-fired power plant, it could reduce carbon dioxide emission by 15,470 tons per year. Besides, the sensitivity of each capacity parameter on the annual performances of hybrid system is analyzed in this paper. The results show that the electric heater can effectively reduce the wind curtailment and improve the overall system stability. The results also show that the hybrid system with bigger thermal storage system capacity and smaller solar multiple has better performance in reducing wind curtailment. And when the solar multiple is constant, mean power change rate decreases with the increase of thermal storage system capacity. The bigger the solar multiple is, the faster the decrease of mean power change rate is.

Simulation and Power Flow Control Using Switching’s Method of Isolated Wind-Solar Hybrid Power Generation System with Battery Storage

In this paper, a battery-supported hybrid wind-solar energy generation system with switching power flow control is presented to supply stable electrical power to two laboratories at the Electric & Electronic Engineering Department. For this purpose, 600W 3-phase permanent magnet synchronous generator (PMSG) based on the wind power generation system (WPGS) and the solar power generation system (SPGS) consisting of 190W 3 pieces mono crystal solar panel were combined to build a 1170W hybrid wind-solar power generation system (HWSPGS). T he solar and wind power generation systems were used as the main energy sources while 100 Ah 12V 6 pieces gel jeep cycle accumulator groups were used as the energy storage device to ensure continuity of energy. Also d ynamic modeling and switching power flow control of the battery supported the HWSPGS were performed using Matlab/Simulink in this study. D etermining the switching positions of the charge control unit according to loading and battery charge situations of the HWSPGS, power flow control between the generation unit and consumer was made in planned manner. When the curves of electrical magnitudes obtained from simulation results were examined, it was determined that no big difference existed in electrical and mechanical magnitudes in parallel to dynamic behavior of the installed hybrid power generation system .

Energy-Saving and Control of General Indoor Lighting Elements Fed from a Micro-Controlled Hybrid Power Generation System

In this study, an off grid wind-solar hybrid power generation system was established at Afyon Kocatepe University to meet the energy need of lighting system of three different laboratories. It is planned to efficiently use the energy obtained from the designed hybrid power generation system. For this purpose, PIC 16F877 was used in controlling of lighting load of laboratories. The off-grid wind-solar hybrid power generation system consists of 570 W 24 V mono crystal solar panels, 600 W wind power generation system and accumulator groups. The load control circuit made with PIC 16F877 is designed in a manner that will control the lighting armature groups individually activate and deactivate the armature groups according to intensity of illumination in environment. Besides, separately from generation and storing units constituting the hybrid power generation system, data in kWh are recorded by means of software in 10 seconds intervals. With the obtained power generation and storing data, analyzing of power consumption data when the load control system in active or passive position is made. According to analysis results, with controlling of lighting load and using of energy obtained from off grid wind-solar hybrid power generation system, 20.6% energy saving has been ensured.

Small Wind-Solar Hybrid Power Generation System Based on Multi-Agent

This paper presents a small wind-solar hybrid power generation system based on multi-agent. The system is composed of wind power agent module, solar power agent module and battery charging and discharging agent module. The power agent generation module is composed of the communication agent, decision-making agent, data processing agent, data collecting agent, power transformation operating agent, protection agent, coordination agent and component control agent. According to the different weather conditions and different power state of equilibrium, the agents of the small wind-solar hybrid power generation system coordinate and use the optimal control strategy to achieve the best operation state of the power system.

Small Multi-Agent Wind Solar Hybrid Power Generation System Design and Implementation

This paper introduces a method of design and implementation of wind-solar hybrid power generation system based on multi-agent. The paper mainly introduces the system hardware structure chart and the parameters design of Buck-Boost circuit. It also introduces the software design of wind power and solar power generation agent module and storage battery charging and discharging agent module. Finally the system wind solar hybrid switching waveforms are analyzed, the waveform analysis can show that the circuit switch is normal and work stably.

A Design of Controller for Wind/Solar Hybrid Power System with DC Load Based on PIC24

This paper presents a controller design based on PIC24 single chip microcomputer, applied to a small independent wind-solar hybrid power generation system. The system’s characteristics are analyzed and the complementary charging algorithm for the battery is studied. The PIC24MCU’s internal resources are made full use of in the controller design, especially the multiplex PWM output and A / D input, thus the hardware circuit is simplified. The controller can not only realize the hybrid of wind generator and solar cell for charging the storage complementary, but also provide a constant current control function for the DC load.

Efficiency Analysis of Isolated Wind-Photovoltaic Hybrid Power System with Battery Storage for Laboratory General Illumination for Education Purposes

In this paper, an isolated wind-photovoltaic hybrid power system with battery storage will be presented that can supply electricity to two laboratories with a capacity of 1072 W peak electrical power depending on the need at the laboratory illuminating where used.A 1170W hybrid power generation system consists of a 190W 24V 3 pieces mono crystal solar panel and 600W 3-phase permanent magnet synchronized generator (PMSG) wind power generation system, rotating 360 0 according to direction of wind, was installed.Besides, to store the consumption excessive electric energy or in case of lack of generation, to ensure energy continuity via renewable power system, 100 Ah 12V 6 pieces gel jeep cycle accumulator groups were installed on the wind-solar hybrid power generation system. In the hybrid power generation system, the data record in 10 second intervals (as kWh) was realized separately from each generation system. Monthly totals of obtained data were arranged separately in tables and graphics.When these obtained data were analyzed, the monthly total electric energy generated by the hybrid power system and monthly total electric energy used by consumers were compared according to the 6-month data. As a result of the comparisons made, it was determined that the generation power of battery storage hybrid power generation system was above its consumption power and at the same time, consumption excessive electric energy was stored in proportional to its battery capacity.

Cost-benefit analysis of hybrid wind-solar power generation by homer power optimization software

HOMER power optimization software for evaluation of design and performance of both off-grid and gridconnected power systems has been applied for cost-benefit analysis of a wind-solar hybrid power generation system. Comparison was also made with the cost per kilowatt of grid power supply. The hybrid system had a pay-back period of about thirty-three years. The central grid power was the least expensive option, but might not be available to most rural households far from the grid. Hence, the autonomous distributive system of hybrid power generation was advantageous.