pumped storage unit parameter setting table
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Control optimisation for pumped storage unit in …
However, with the introduction of those additional parameters, the borders of fuzzy membership functions can be set separately and turn into two parameters of the proposed controller. …
Aprende másModeling and Operating Characteristics of Excitation System for
The variable speed pumped storage unit with a full-size converter (FSC-VSPSU) can provide fast and flexible regulation capacity for the power grid, assisting the rapid development of the new energy-dominated power systems, and its application is gradually becoming widespread. The excitation system of FSC-VSPSU is crucial for …
Aprende másDynamic modeling and favorable speed command of variable-speed pumped-storage unit …
Variable-speed pumped-storage unit (VSPSU) has become a state-of-the-art technology in pumped-storage industry. It has advantages in rapidity, flexibility, efficiency, and reliability. VSPSU is a good countermeasure in dealing with the intermittency of variable renewable energies, like wind power and solar power [5], [6], as shown in …
Aprende másCharacteristics Analysis and Fuzzy Fractional-Order PID Parameter ...
Compared with conventional hydropower units, the pumped storage unit has the characteristics of diverse working conditions and frequent switching. Therefore, the stability and regulation quality of the primary frequency modulation transition process of the regulating system is very important. Due to the "S" characteristics of the pumped …
Aprende másFractional-PID and Its Parameter Optimization for Pumped Storage Units ...
Speed governing control is significant in ensuring the stable operation of pumped storage units. In this study, a state-space equation mathematical model of the pumped storage governing system considering the complex hydraulic pipeline structure of the pumped storage plant is proposed to describe the system''s dynamic behaviors …
Aprende másEnergies | Free Full-Text | Hopf Bifurcation and Parameter ...
The doubly-fed variable speed pumped storage unit is a storage system suitable for joint operation with renewable energy sources to smooth the imbalance between renewable energy supply and electricity demand. However, its working principle and operation control are more complex than those of constant speed pumped storage. …
Aprende másParameter Identification of a Governing System in a Pumped Storage Unit ...
Therefore, in this study, an improved artificial hummingbird algorithm (IAHA) is proposed for the parameter identification of the governing system in a pumped storage unit. The algorithm integrates two key strategies to improve the optimization ability of the algorithm. First, the Chebyshev chaotic map…. Expand.
Aprende másAdvantage analysis of variable-speed pumped storage units in …
1. Introduction. With the increasing of intermittent renewable energy (RE) sources such as wind and solar energy connected to the power grid, the power security and stability are seriously challenged [1], [2].Pumped storage units (PSU), as energy storage device (ESD) in renewable energy power grid (REPG), have the features of non …
Aprende másElectronics | Free Full-Text | Modeling and Operating Characteristics of Excitation System for Variable Speed Pumped Storage Unit …
The variable speed pumped storage unit with a full-size converter (FSC-VSPSU) can provide fast and flexible regulation capacity for the power grid, assisting the rapid development of the new energy-dominated power systems, and its application is gradually becoming widespread. The excitation system of FSC-VSPSU is crucial for …
Aprende másDesign of a fractional-order PID controller for a pumped storage unit ...
A pumped storage unit (PSU) is more difficult to control compared to a conventional hydropower generation unit due to the frequent switching of working conditions and the S-shaped characteristics of pump turbine. ... a PTGS was simulated in MATLAB with the key parameters listed in Table 6. A PID controller, a NPID controller and a FOPID ...
Aprende másVWHP2SHUDWLRQ6LPXODWLRQ Variable-Speed Pumped …
Abstract. Pumped-Storage Hydro (PSH) power units, especially variable speed units, have great roles in guaranteeing power system operation safety, stability and efficiency. As the investment cost of pumped-storage variable speed unit is higher than fixed speed unit, it is necessary to study its optimal scale.
Aprende másFlexibility of variable-speed pumped-storage unit during primary ...
The variable-speed pumped-storage unit (VSPSU) based on doubly-fed induction machine (DFIM) and reversible pump-turbine (RPT) is a new type of pumped-storage unit with the advantages of large capacity (up to 400 MW for a single unit [6]), high efficiency (typical overall efficiency of 70–85 % [4]), and quick response (power step …
Aprende másNoise Reduction Study of Pressure Pulsation in Pumped Storage Units ...
The unbalanced forces generated by pumped storage units operating under non-ideal operating conditions can cause pressure pulsations. Due to the noise interference, the feature information reflecting the operating state of the unit in the pressure pulsation is difficult to extract. Therefore, this paper proposes a noise reduction method …
Aprende másRegulation intensity assessment of pumped storage units in daily ...
The operation modes of the pumped storage unit (PSU) tend to be more frequent with two or more startups per day for power generation or water pumping. ... The system parameters and algorithm parameters are set as shown in Table. A. 1 and Table. A. 2 in Appendix A, respectively. ... Six experts are invited to make judgments on the five ...
Aprende másParameter Identification of a Governing System in a …
Parameter identification is an important method to establish the governing system of a pumped storage unit. Appropriate parameters will make the governing system obtain better control …
Aprende másQuantifying power regulation characteristics in pump mode of …
In pump mode, variable-speed pumped storage units (VSPSUs) have wider power regulation ranges and more flexible power responses than fixed-speed …
Aprende másResearch on Control Parameter Setting Method of AC Excitation …
This work focuses on the converter control links of variable speed pumped storage unit, proposed the principle of dynamic correction for AC excitation system of.
Aprende másParameter Identification of a Governing System in a Pumped …
Parameter identification is an important method to establish the governing system of a pumped storage unit. Appropriate parameters will make the governing …
Aprende másVWHP2SHUDWLRQ6LPXODWLRQ Variable-Speed Pumped …
Abstract. Pumped-Storage Hydro (PSH) power units, especially variable speed units, have great roles in guaranteeing power system operation safety, stability and efficiency. As the …
Aprende másParameters-setting method for synchronization of pumped storage units …
This paper presents a parameters-setting method for the synchronization of pumped-storage units under the pumping condition. The synchronizing process of the units is analyzed and the synchronizing parameters-setting principle of generating units is referred. Finally, the method is educed through mathematical formula …
Aprende másA Fast High-Precision Model of the Doubly-Fed Pumped Storage Unit
A doubly-fed pumped storage unit mainly includes the variable speed control system of pump-turbine and the DFIG control system, as displayed in Fig. 1 the turbine mode, the variable speed control system of pump-turbine controls the rotor speed ω r according to the optimal speed ω opt obtained from the active power reference P ref and …
Aprende másFractional-PID and Its Parameter Optimization for Pumped …
As the core control system of pumped storage units, the pumped storage governing system (PSGS) undertakes the important tasks of manipulating the …
Aprende másA novel TVAC-PSO based mutation strategies algorithm
The pumped storage unit operates either in a generating mode or in the pumping mode depending upon the switching status of the unit controlled by binary decision variables (Yp, Yg). ... S S t ≤ x × P d while r is exterior penalty factor parameter. 4.5. Parameter settings ... The coefficients related to pumped storage unit, shown in Table …
Aprende másParameter Identification of a Governing System in a Pumped Storage Unit ...
power system, and improve the absorption capacity of clean energy. To solve the security. and stability of clean energy entering the power grid on a large scale [. 1. ]. Currently, the pumped ...
Aprende másA nonlinear generalized predictive control for pumped storage unit ...
Variable-speed pumped-storage unit (VSPSU) is state-of-the-art technology and has appeared as a new orientation of the world pumped-storage industry in recent years, but the dynamic performance of ...
Aprende más2. Hydraulic-Mechanical-Electrical Coupling Model
In order to study the dynamic regulation process of PSURS, the simulation experiment is performed in this section. The refined mathematical model of the regulation system of the pumped storage unit is shown in Section 2. The model of the pump turbine uses the data of the actual unit of a pumped storage power station in China.
Aprende másHigh fidelity modeling of pumped storage units for optimal …
The example system consists of two TP units, two WP units, two PV units and four PS units, the specific parameters of which are shown in Table 1.The research sets the lower limit of the operating range of the PS units for power generation condition to be 40% of the rated power, and the ramp up/down to be 40% and − 40 % …
Aprende másAn Integrated Start-Up Method for Pumped Storage …
Pumped storage units (PSUs) are an important storage tool for power systems containing large-scale renewable energy, and the merit of rapid start-up enable PSUs to modulate and stabilize the power system. In this …
Aprende másAn Integrated Start-Up Method for Pumped Storage Units Based …
Pumped storage units (PSUs) are an important storage tool for power systems containing large-scale renewable energy, and the merit of rapid start-up enable PSUs to modulate and stabilize the power system. In this paper, PSU start-up strategies have been studied and a new integrated start-up method has been proposed for the purpose of achieving swift …
Aprende másA nonlinear generalized predictive control for pumped storage unit
Abstract. In this paper, the control problem of pumped storage unit (PSU) has been studied. A nonlinear generalized predictive control (NGPC) method has been applied to design the controller for a PSU. The NGPC controller is designed based on instantaneous linearization model of the control system, and the parameters of the …
Aprende másHydraulic-mechanical-electrical coupled model framework of …
With the large-scale operation of wind and solar energy, the demand for energy storage in power grids has increased sharply. As a reliable means of long-term energy storage, the variable-speed pumped-storage power station (VSPSU) is a new development direction for pumped storage that has attracted increasing attention owing …
Aprende másParameter uncertainty and sensitivity of pumped storage system …
The parameters of pumped storage system and power grid have the uncertain characteristics. The parameters of operating conditions also have the uncertain characteristics. Moreover, the surge tank is the most commonly used pressure reduction facility [14], [15] .
Aprende másEnergies | Free Full-Text | Parameter Identification of …
Pumped storage unit (PSU) is an efficient tool for peak shaving, valley filling, frequency and phase adjustment, rotation and emergency reserve in a power grid, which makes it important in guaranteeing power supply …
Aprende másEnvironmental and economic scheduling for wind-pumped storage …
The operational decision-making of pumped storage units is designed from the viewpoint of giving full play to the regulation performance of pumped storage and enhancing wind power accommodation. ... The time scale is set to 1 h with a total of 24 scheduling slots per day in this paper. ... And the basic parameters of PSPS are given in …
Aprende másPerformance enhancement of pumped storage units for …
Here, A 0 ∼ A 6 and B 0 ∼ B 7 are depicted in Appendix B. The characteristic parameters of pumped turbine are interpolated from the running point on the characteristic curves. The physical significance of D G is the additional damping torque provided by the PSU against the change of rotational speed, which is of positive …
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