An Advanced Control Strategy For Solar PV and Battery Storage Integration System

In this venture, another design of a three-level unbiased point-clasped (NPC) inverter that can coordinate solar photovoltaic (PV) with battery storage in a framework associated framework is proposed. The quality of the proposed topology lies in a novel, expanded unbalance three-level vector adjustment procedure that can produce the right air conditioning voltage under lopsided dc voltage conditions. This venture introduces the outline examination of the proposed setup and the hypothetical system of the proposed regulation method. Another control calculation for the proposed framework is likewise introduced with a specific end goal to control the power conveyance between the sun based PV, battery, and matrix, which all the while gives most extreme power point following (MPPT) operation for the sun oriented PV. In this venture fuzzy controller used to lessened the music when contrasted with the PI controller. The viability of the proposed philosophy is examined by the reenactment of a few situations, including battery accusing and releasing of various levels of sunlight based light. The reenactment performed in MATLAB/SIMULINK condition

An Advanced Control Strategy For Solar PV And Battery Storage Integration System Using A Three Level NPC Inverter

In this venture, another design of a three-level impartial point-braced (NPC) inverter that can incorporate sunlight based photovoltaic (PV) with battery stockpiling in a lattice associated framework is proposed. The quality of the proposed topology lies in a novel, developed unbalance three-level vector adjustment strategy that can create the right air conditioning voltage under lopsided dc voltage conditions. This venture shows the plan investigation of the proposed design and the hypothetical structure of the proposed regulation system. Another control calculation for the proposed framework is additionally exhibited with a specific end goal to control the power conveyance between the sun based PV, battery, and matrix, which at the same time gives greatest power point following (MPPT) operation for the sun based PV. In this venture fluffy controller used to lessened the music when contrasted with the PI controller. The adequacy of the proposed procedure is examined by the recreation of a few situations, including battery accusing and releasing of various levels of sun oriented illumination. The reenactment performed in MATLAB/SIMULINK condition

Solar PV and Battery Storage Integration System Using Three Level NPC Inverter

In this work, another setup of a three-level neutral point-clipped (NPC) inverter that can incorporate sun powered photovoltaic (PV) with battery stockpiling in a lattice associated framework is proposed. The quality of the proposed topology lies in a novel, expanded unbalance three-level vector tweak strategy that can create the right ac  voltage under lopsided dc voltage conditions. This venture shows the plan investigation of the proposed arrangement and the hypothetical structure of the proposed adjustment system. Another control calculation for the proposed framework is additionally introduced keeping in mind the end goal to control the power conveyance between the sun powered PV, battery, and network, which at the same time gives most extreme power point following (MPPT) operation for the sunlight based PV. In this venture fuzzy controller used to lessened the harmonic distortion when contrasted with the PI controller. The viability of the proposed procedure is explored by the recreation of a few situations, including battery accusing and releasing of various levels of sun based light. The reenactment performed in MATLAB/SIMULINK condition

Data-driven model-based approaches to condition monitoring and improving power output of wind turbines

The development of the wind farm has grown dramatically in worldwide over the past 20 years. In order to satisfy the reliability requirement of the power grid, the wind farm should generate sufficient active power to make the frequency stable. Consequently, many methods have been proposed to achieve optimizing wind farm active power dispatch strategy. In previous research, it assumed that each wind turbine has the same health condition in the wind farm, hence the power dispatch for healthy and sub-healthy wind turbines are treated equally. It will accelerate the sub-healthy wind turbines damage, which may leads to decrease generating efficiency and increases operating cost of the wind farm. Thus, a novel wind farm active power dispatch strategy considering the health condition of wind turbines and wind turbine health condition estimation method are the proposed. A modelbased CM approach for wind turbines based on the extreme learning machine (ELM) algorithm and analytic hierarchy process (AHP) are used to estimate health condition of the wind turbine. Essentially, the aim of the proposed method is to make the healthy wind turbines generate power as much as possible and reduce fatigue loads on the sub-healthy wind turbines. Compared with previous methods, the proposed methods is able to dramatically reduce the fatigue loads on subhealthy wind turbines under the condition of satisfying network operator active power demand and maximize the operation efficiency of those healthy turbines. Subsequently, shunt active power filters (SAPFs) are used to improve power quality of the grid by mitigating harmonics injected from nonlinear loads, which is further to increase the reliability of the wind turbine system

三相交流電動機駆動システムの直流リンクコンデンサ電流ストレスを低減する負荷電流セクタに基づいた PWM方式に関する研究

国立大学法人長岡技術科学大

Neutral point voltage control of neutral point clamped converters

The most widely used Medium Voltage multilevel converter is the 3-level AC/DC Neutral-Point Clamped (NPC) converter. It provides: a) twice the voltage rating, b) a reduction in the volumetric size and weight over the traditional 2-level converter. However, these benefits are lost when the Neutral Point (NP) drifts away from its ideal value (0 V).The first method is to modify the modulator of the converter to control the NP. Numerous variations on this control method have been proposed yet there is no comprehensive material that compares these variations in terms of voltage quality, NP ripple, and NP control performance. Another method exploits the converter's natural ability to recover its NP however little is still understood about this phenomenon. This thesis will: a) compare all the numerous modulator-based strategies and, b) model the natural-balancing phenomenon, c) demonstrate how natural balancing’s performance can be enhanced with an additional RLC element, d) how perfect harmonic output and fast natural balancing can be achieved through DC link compensation. The final aim is to show the reader the best method in controlling the NP of the converter