A Simple Model Predictive Power Control Strategy for Single-phase PWM Converters with Modulation Function Optimization

Song, Wensheng; Deng, Zhixian; Wang, Shunliang; Feng, Xiaoyun

doi:10.1109/tpel.2015.2481323

Cited by 67 publications

(64 citation statements)

References 47 publications

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“…Time [28], fictive axis emulator [29], time delay [30], all pass filter [31] and second-order generalized integrator [32] are conventional OSG methods. …”

Section: Methods Transfer Functionmentioning

confidence: 99%

Performance Improvement for Two-Stage Single-Phase Grid-Connected Converters Using a Fast DC Bus Control Scheme and a Novel Synchronous Frame Current Controller

Huang

Chen

2017

Energies

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Two-stage single-phase grid-connected converters are widely used in renewable energy applications. Due to the presence of a second harmonic ripple across the DC bus voltage, it is very challenging to design the DC bus voltage control scheme in single-phase grid-connected inverters. The DC bus voltage controller must filter the ripple and balance a tradeoff between low harmonic distortion and high bandwidth. This paper presents a fast DC bus voltage controller, which uses a second order digital finite impulse response (FIR) notch filter in conjunction with input power feedforward scheme to ensure the steady-state and dynamic performance. To gain the input power without extra hardware, a Kalman filter is incorporated to estimate the DC bus input current. At the same time, a modulation compensation strategy is implemented to eliminate the nonlinearity of the grid current control loop, which is caused by the DC bus voltage ripple. Moreover, a novel synchronous frame current controller for single-phase systems is also introduced, and its equivalent model in stationary frame has been derived. Simulation and experimental results are provided to verify the effective of the proposed control scheme.

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“…Time [28], fictive axis emulator [29], time delay [30], all pass filter [31] and second-order generalized integrator [32] are conventional OSG methods. …”

Section: Methods Transfer Functionmentioning

confidence: 99%

Performance Improvement for Two-Stage Single-Phase Grid-Connected Converters Using a Fast DC Bus Control Scheme and a Novel Synchronous Frame Current Controller

Huang

Chen

2017

Energies

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“…Because of the inevitable control delay of one-step prediction, the two-step prediction in the proposed method is introduced to compensate [23]. By shifting Equations (7)- (9) one step ahead, the compensated output current i o [(n + 2)T s ] is calculated on the basis of the shifted versions of (7)- (9) with Equation (10).…”

Section: Proposed Predictive Control Methods For Single-phase Invertermentioning

confidence: 99%

“…Similar approach was addressed in Ref. [23], which develops the model predictive direct power control with constant switching frequency. In this paper, fictitious orthogonal phase voltages and currents are generated from a single-phase quantity by a second-order generalized integrator.…”

Section: Introductionmentioning

confidence: 96%

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Model-Based Predictive Current Control Method with Constant Switching Frequency for Single-Phase Voltage Source Inverters

Roh

Kwak

2017

Energies

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Voltage source inverters operated by predictive control methods generally lead to a variable switching frequency, because predictive control methods generate switching operation based on an optimal voltage state selected at every sampling period. Varying switching frequencies make it difficult to design output filters of voltage source inverters. This paper proposes a predictive control algorithm with a constant switching frequency for the load current control of single-phase voltage source inverters. This method selects two future optimal voltage states used in the subsequent sampling period, which are a zero-voltage state and a future optimal voltage state, based on the slope of the reference current at each sampling period. After selecting the two future voltages, the proposed method distributes them to produce a constant switching frequency and symmetric switching pattern. The performance of the proposed method is validated with both simulation and experimental results for single-phase voltage source inverters.

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“…VOC includes two control loop which provides good dynamic and static performance. It has already been presented in Ma et al, Monfared et al,and Song et al 9,18,30 Using the PI controllers and d-q conversion are the drawbacks of the proposed strategy in Monfared et al 18 that needs PLL, and it reduces the response rate of the rectifier. The performance of VOC depends on the quality of the inner current control loop.…”

Section: Introductionmentioning

confidence: 98%

Design and analysis of a simple predictive power controller for a 1.0‐kV single‐phase NPC PWM rectifier

Eshkevari

Mosallanejad

Sepasian

2018

Circuit Theory & Apps

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This paper proposes a 1-kV single-phase neutral point clamped (NPC) PWM rectifier with a simple predictive power controller (PPC). It includes the three-level NPC converter and a simplified PPC. This system achieved to feature multi-level converters and the ability to provide high voltage gain, and a control with accurate and straightforward predictive strategy without the need of PLL and PI controller. It also takes advantages of a digital delay compensator unit, a user-friendly single-phase three-level space vector modulation (SVM) with neutral point balancing, and bidirectional active and reactive power flow. The proposed rectifier provides low input current harmonic distortion (THD < 2%), input sinusoidal current waveforms, zero or desired reactive power flow, fast dynamic response (=5 cycles), high stability, high efficiency, and the lower DC voltage ripple (<6%). Simulations have been carried out for a 1 kV/20 kW rectifier under different conditions. In this analysis, various practical conditions have been investigated and discussed in details. Furthermore, the proposed system was compared with the other literature and conventional methods.KEYWORDS direct power control, high voltage gain active rectifier, predictive power controller, single-phase PWM rectifier

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A Simple Model Predictive Power Control Strategy for Single-phase PWM Converters with Modulation Function Optimization

Cited by 67 publications

References 47 publications

Performance Improvement for Two-Stage Single-Phase Grid-Connected Converters Using a Fast DC Bus Control Scheme and a Novel Synchronous Frame Current Controller

Performance Improvement for Two-Stage Single-Phase Grid-Connected Converters Using a Fast DC Bus Control Scheme and a Novel Synchronous Frame Current Controller

Model-Based Predictive Current Control Method with Constant Switching Frequency for Single-Phase Voltage Source Inverters

Design and analysis of a simple predictive power controller for a 1.0‐kV single‐phase NPC PWM rectifier

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