Simulation of Phase-Shift Full-Bridge Based on Dual-Loop
In this paper, the voltage closed-loop feedback PI controller and the current closed-loop feedback PI controller are built using Simulink platform in MATLAB environment, and they are combined into a closed-loop control system with double-loop competitive control mode, which is applied to the specific PSFB converter simulation model, and two comparative tests
Block diagram of voltage-current double
Model of Voltage and Current Closed Loops Figure 5 shows the control structure of the voltage outer loop and the current inner loop. In Figure 5, K pv, K iv, K pc, and K ic are the PI
Research on Fuzzy Weighted Controller for Battery Discharge of
Aiming at the dual closed-loop control of dual-active bridge (DAB) charging and discharging circuits in energy storage devices, which is difficult to allocate discharging current reasonably based on battery performance, a fuzzy weighted controller with battery pack voltage and its variation as input is proposed.
Research on Battery Grid Connection Based on Voltage and
The inverter circuit adopts double closed-loop control of voltage and current, and is merged into the analog power grid after being filtered by inductance. Simulation experiments on...
Research on High-Quality Control
The voltage-closed loop is the largest and outermost control loop, which encloses the current-closed loop. Thus, it is called the outer-voltage loop, while the current
Model-Based Double Closed-Loop Coordinated
The dual-mode electro-mechanical transmission (EMT) system is a crucial part of power-split hybrid electric vehicles (HEVs), especially for the heavy HEVs. To improve the precision of the system power distribution and
Double closed-loop control strategy for battery discharge regulator
To ensure the steady and dynamic performance of the battery discharge regulator (BDR), a double closed-loop control strategy is proposed for the BDR, which based on the topology of
Research on a Modeling and Control
The voltage and a current double closed-loop control are adopted for the resistive load, a single-current closed-loop control is used for the voltage source load, and the PI
Voltage and current double closed loop control
The structure of the control loops are shown in Figure 9, where G i (s) and G v (s) represent the transfer function of the regula- tor for the current inner loop and the voltage outer loop
Microsoft Word
In terms of the features of distributed generation such as intermittent, random, and highly affected by weather conditions, this paper designs the voltage and current double closed-loop feedback
Dual closed loop control of LLC resonant converter for EV battery
The presented dual closed loop control technique is implemented under soft-switching conditions with constant current and constant voltage control methods. The designed DC/DC resonant converter, fed by Power Factor Corrector (PFC) outputs 200-300 V, provides 60 V/20 A at 1.2 kW. a battery is charged using Constant Current (CC) and Constant
Energy-efficient and reliable dual closed-loop DC control system
The dual closed-loop strategy, integrating a current inner loop and a voltage outer loop, ensures rapid response and high steady-state accuracy, with the PI regulator
Double loop control of buck-boost converters for wide range
A double-loop control mechanism is developed for an inverting buck-boost converter. and Sutanto D. Zero-voltage and zero-current switching buck-boost converter with low voltage and current stresses IET Power Electron. 1 3 Chen Z.S., Hu J.G., Gao W.Z., and Ye X. Closed-loop analysis and cascade control of a nonminimum phase boost
Research on Grid-Connected Control
In Section 4, the formulation of the voltage and current feedforward decoupling double closed-loop control strategy and the PQ constant power control strategy is
Model-Based Double Closed-Loop Coordinated
The proposed battery closed-loop feedback control strategy can effectively eliminate the deviation between the actual battery power and the target battery power.
Dual-Mode DC/DC Converter for Multi-energy Drive System
According to the simulation results in Fig. 14, the single battery pack can stably output and input power under the control of DC/DC converter, and the maximum output power is 170 kW in 6 s, and then the constant current charging with 80 A current is completed; In the double closed-loop control of DC/DC, the voltage loop makes the intermediate DC voltage stable at the target
A current decoupling parallel control strategy of single-phase
Voltage and Current Controller In addition, a voltage and current double closed-loop control method [19] is adopted for the power module. In present day converter controls, it is a prevalent
Closed-Loop Control System Design for Wireless
Voltage and current waveforms in CC and CV modes: (a) voltage and current in the inverter (V_in, I_in) and battery charging voltage and current (V_out, I_out) in the CC mode at Rbat = 27 Ω; (b
Feedback PID Controller-Based Closed
Lithium-ion batteries are the most used technology in portable electronic devices. High energy density and high power per mass battery unit make it preferable over
Optimization Design and Research of Control Strategy Based
Figure 5(a) is the simulation waveform of the output voltage and current on the DC side under the traditional voltage-current double closed-loop control strategy, and Fig. 5(b) is the simulation waveform of the output voltage and current on the DC side under the optimized control strategy mentioned in this paper. In Fig. 5(a), the DC side voltage has 210V overshoot,
A novel voltage and current double closed-loop control method
Performance of DC/AC Inverters is decreased due to variable load parameters. Based on a voltage and current double closed-loop control inverter model, a novel load on-line parameter estimation control method is proposed. In this method, load parameters of inverters are calculated on-line. And then, controller coefficients of inverters are modified according to load
Improved VSG control strategy based on the combined power
Therefore, a double closed-loop control structure with the outer voltage loop and the inner current loop is usually added to further improve the outputs of voltage and current. When the microgrid operates with an unbalanced load, the output voltage contains a negative sequence component at twice the fundamental frequency in addition to the positive sequence component.
A Family of Hybrid Topologies for Efficient Constant
In the field of wireless charging technology for electric vehicles, the charging process of lithium-ion batteries is typically divided into two stages: constant-current (CC) charging and constant-voltage (CV) charging. This two
基于电压电流双环控制的蓄电池并网研究
The inverter circuit adopts double closed-loop control of voltage and current, and is merged into the analog power grid after being filtered by inductance. Simulation experiments on...
Bidirectional CLLLC Resonant Converter
The converter uses a constant voltage and constant current control in the forward operation and voltage and current double-closed-loop control in the reverse operation.
Simulation and Design of Closed Loop Controlled
A mathematical and simulation model of a practical Buck-Boost converter is developed, it will be employed for closed loop voltage control of a DFIG DC system through MATLAB/Simulink.
Double Closed Loop Control of DC-DC Boost Converter
In this paper, An average switch model of a boost converter with double closed loop control is presented by using the method of average state space. A detailed design procedure of both voltage and current feedback loops are given in a boost converter. The proposed circuit shows the characteristics of the fast dynamic response. Besides, the output voltage ripple is reduced
The Voltage Stabilizing Control Strategy of Off‐Grid Microgrid
When the energy storage converter adopts fuzzy double closed-loop control, the maximum overshoot of the bus voltage is 13.4 V. After oscillation adjustment, it stabilizes to 650 V in about 3.6 s. When the energy storage converter adopts the genetic fuzzy double closed-loop control, the maximum overshoot of the bus voltage is 8.2 V.
Design of dual loop controller for boost converter
15 and 16, a voltage and current double closed loop control method for the boost circuit is introduced, Design of double closed-loop boost converter controller to reduce transient voltage dip for sudden load
Energy-efficient and reliable dual closed-loop DC control system
This study presents an innovative dual closed-loop DC control system for intelligent electric vehicle (EV) charging infrastructure, designed to address the challenges of high power factor, low harmonic pollution, and high efficiency in EV charging applications. The research implements a three-level Pulse Width Modulation (PWM) rectifier with a diode
Research on double closed-loop control strategy based on two
A voltage and current double closed-loop control method based on plural PI controller against two-stage matrix converter is developed. the compound vector model
The voltage current dual-loop control structure
It is achieved by cascading dual-loop with the VSG power loop. Fig. 4 further shows the voltage and current dual-loop control structure. The output voltage 2E obtained from reactive power control
Double Closed-Loop Control System of Bi-Direction Current
The double closed-loop control system of current source SPWM inverter (CSI) is designed to meet the need of battery pack testing system and gets high power factor and high dynamic response quality by dq coordinate conversion. The double closed-loop control system of current source SPWM inverter (CSI) is designed to meet the need of battery pack testing
Virtual DC machine-based distributed SoC balancing control
The state-of-charge (SOC) balance among battery storage units (BSUs) and bus voltage stability are key issues for DC microgrids. This paper proposes a novel distributed
LADRC Control Strategy for Bidirectional Grid-Connected
This paper proposes a novel bus voltage control strategy based on LADRC, taking the grid-connected DC microgrid as the backdrop and the bidirectional grid-connected inverter as its research object. The PI regulation of voltage and
Design of Control Loop of Three-Phase Z-source Inverter
Where (Delta u_d) and (Delta u_q) are the outputs of the two axes current inner loop, respectively [].. It can be seen from Eq. () that, due to the introduction of current feedback in the control vector, the coupling between the two axes is cancelled, and the two-axis currents are controlled independently.At the same time, the feedforward quantities (u_{0d})
RI7KUHH SKDVH3:05HFWLILHU Application of Active Disturbance
= the current reactive component. 3. Double closed loop control strategy 3.1. Current loop control design As can be seen from equation (2), the axial current component i d, qi are not only affected by the control variable S d U dc, S q U dc, but also the disturbance of cross-coupling voltage ZLi q, ZLi d, and AC
6 FAQs about [Battery voltage and current double closed loop]
Does voltage current double closed-loop control improve transient behavior of DC bus voltage?
Therefore, the proposed control strategy effectively improves the transient behavior of the DC bus voltage and battery storage output current. Simulation results of case 1 comparing the control strategy proposed in this paper with voltage current double closed-loop control: a DC bus voltage; b PV unit current; c load current; d BESS current
How fast does a closed-loop control system stabilize a DC voltage?
Fig 12 illustrates the transient response of the DC voltage across the system, highlighting the system’s rapid stabilization to a steady state of 700V within 0.15 seconds. This swift stabilization is a testament to the effectiveness of our dual closed-loop control strategy in achieving rapid dynamic response.
What is battery closed-loop feedback control?
Under the battery closed-loop feedback control, the change in battery power will follow the predetermined trajectory. Meanwhile, with the help of the coupling relationship among components, the motor coordinated control strategy will enable the system to rapidly supply electric power and keep it stable.
Can a dual closed-loop DC control system improve EV charging infrastructure?
7. Conclusion This study presents an innovative dual closed-loop DC control system for intelligent electric vehicle (EV) charging infrastructure, designed to address the challenges of high power factor, low harmonic pollution, and high efficiency in EV charging applications.
What is a double closed-loop linear active disturbance rejection control (ladrc) scheme?
In order to stabilize the output voltage and realize automatic switching of constant voltage and current, this paper proposes a double closed-loop linear active disturbance rejection control (LADRC) scheme. Firstly, the transfer functions of the system are obtained by extended description function (EDF) method and simulation method respectively.
What is a dual closed-loop Pi regulator?
The dual closed-loop strategy, integrating a current inner loop and a voltage outer loop, ensures rapid response and high steady-state accuracy, with the PI regulator effectively managing phase coupling for balanced power flow. The voltage outer loop’s stability is critical for the system’s reliable operation.