National Journal of Quality, Innovation, and Business Excellence

Efficiency-Oriented Design and Control of Multilevel Power Converter–Fed Electrical Machines for Grid-Connected and Industrial Applications

P.Joshua Reginald — 2025-09-05

The trend toward using grid-connected and industrialized electric drive packages requires better efficiency, more valuable power quality, and full adherence to grid standards. The natural benefits of multilevel power converter fed electrical machines include: less harmonic distortion, less voltage stress and more power scalability. Nonetheless, traditional methods of control are mainly aimed at dynamic executing and do not take into account the integrated loss optimization and therefore, have low efficiency in different operating environments. With a proposal based on efficiency-oriented design and control framework of multilevel converter fed electrical machines is put in this paper which explicitly considers converter as well as machine losses. Loss modelling approach is developed in a comprehensive manner with semiconductor conduction and switching losses as well as machine copper, core and mechanical losses. According to this model, the loss-aware control strategy is developed that dynamically optimises the existing references without affecting the accuracy of torque and grid power quality. Experiments of simulation show that overall efficiency and total losses and grid current harmonic distortion were reduced in comparisons to more than traditional control schemes and the schemes are therefore feasible in the field of industrial automation and grid-connected drive applications.

Integrating Total Quality Management and Innovation Strategy: An Empirical Study of Business Excellence Performance

N. Saranya — 2025-09-06

This paper explores the concept of Total Quality Management (TQM) and innovation strategy and how they influence business excellence performance when they are integrated. Even though studies conducted before analysed quality management and innovation separately, there is not much empirical evidence to articulate how the alignment between them leads to better organisational performance. It is based on the Resource-Based View and the dynamic capabilities perspective, and the research constructs and tests the structural model with the quantitative cross-sectional survey design. The relationship was measured using strict equations of analysis and interpretation of data collected within organisations. These results show that TQM has a positive impact on business excellence performance both directly and indirectly by embracing innovation strategy, and innovation strategy has a good mediating effect. These results indicate that innovation is a dynamic capacity that transforms quality-based practises to sustainable performance benefits. The theoretical contributions of the study are in its combination of TQM and innovation strategy into one unified framework based on the capabilities, which serves as the continuation of the current literature on business excellence. In practise, the findings emphasise the significance of aligning the quality systems with innovation projects in a strategic manner to improve their adaptability and long-term competitiveness.

Measuring the Impact of Continuous Quality Improvement Practices on Innovation Outcomes and Competitive Advantage

Haitham M. Snousi, Fateh A. Aleej, M. F. Bara, Ahmed Alkilany — 2025-09-07

The continuous Quality improvement (CQI) practises are widely spread to achieve the efficiency of operations and the product reliability, and their strategic role in the innovation performance and sustainable competitive advantage is under-investigated. This paper talks of the effects of CQI practises on the innovation results and competitive advantage based on the theoretical perspective of Resource-Based View (RBV) and the Dynamic Capabilities Theory. The proposed relationships were tested in Structural Equation Modelling (SEM) when the quantitative survey was carried out in 268 manufacturing and service companies. The findings reveal that CQI practises have significant and positive effects on product and process innovation results. On their part, the outcomes of the innovation have a significant positive impact on the competitive advantage. Moreover, the mediation analysis establishes that innovation outcome is a partial mediation between CQI practises and competitive advantage that implies that quality-based company routine increases competitiveness both directly and indirectly facilitated by the development of innovation capability. These are some of the findings that re-rank CQI as a strategy-enabled tool that promotes innovation-driven differentiation and long-term performance rather than merely being a tool of operational effectiveness in most instances. The research paper leverages the existing literature on the quality management field and innovation by empirically elucidating the mechanism by which continuous upgrading programmes lead to the prevalence of competitive advantage. The implications to managers involve the necessity to incorporate CQI models and innovation strategy to optimise the development of long-term organisational value.

Digital Innovation and Quality Management Synergies: Evidence from High-Performance Organizations

Dahlan Abdullah — 2025-09-08

This paper will investigate the synergetic connexion between quality management practises and digital innovation and their joint effect on the performance of the organisation in a high-performance organisation. The study will be based on the Resource-Based View (RBV) and the Dynamic Capabilities Theory, which suggest that digital innovation capabilities complement the quality management systems, and their combination produces a synergistic effect, which reinforces business excellence performance. Relying on the quantitative survey design data were gathered in 312 managers of successful firms of manufacturing and service industries, and the suggested model was evaluated with the help of Partial Least Squares Structural Equation Modelling (PLS-SEM). The findings indicate that digital innovation affects the performance of the organisation (β =0.34, p < 0.001) and quality management (β = 0.49, p < 0.001) influentially, and quality management, in its turn, affects the performance (β =0.41, p < 0.001) in an appropriate manner. The structural model describes 62% of the variance in the performance of the organisation (R²= 0.62) in justification of a considerable predictive power, and the interaction effect confirms a high level of synergy between digital innovation and quality management. On the managerial side, the results indicate that to derive optimal performance growth, organisations need to combine digital transformation efforts with an established quality system in their strategic efforts to generate value and maintain a competitive edge. The study makes a contributions to the quality and innovation literature by empirically confirming the digital; quality synergy framework, and providing a sound model based on PLS-SEM that assists in comprehending the role of integrated capabilities in bringing business excellence.

A Structural Model of Quality Leadership, Process Innovation, and Organizational Excellence

S. Praveen Kumar — 2025-09-09

The purpose of this study will be to investigate the structural relationships involving quality leadership, process innovation, and organisational excellence in the context of competitive business environments. Based on the theoretical background of Total Quality Management (TQM), innovation capability theory, and business excellence models (EFQM/Baldrige) the paper expounds to the structural framework where quality leadership contributes to excellent performance of organisations both directly and indirectly via process innovation. On the quantitative side of the research design, the survey data was used to gather data on 312 managers based on manufacturing and service sector organisations. Partial Least Squares Structural Equation Modelling (PLS-SEM) was used to analyse the proposed model. The model of measurements proved excellent reliability and validity, whereas the outcomes of the structural model showed that quality leadership has a considerable impact on process innovation (β = 0.64, p < 0.001) and organisational excellence (β = 0.29, p = 0.01). Process innovation also showed a significant positive relationship with organisational excellence (β = 0.51, p < 0.001), whereas the R² value was 0.58 and the value is significant. The mediation test established that the relationship between quality leadership and organisational excellence is mediated by process innovation to some extent. The conclusions draw practical implications to the managers as an indicator of the need to adopt leadership quality culture and innovation process improvement strategies to act as a catalyst to sustained excellence. This paper adds to the body of the quality management and innovation research because the investigation empirically supports an integrated structural framework that connects leadership practises with the innovation processes and excellence performance outcomes of the companies which is the advanced PLS-SEM analysis.

Assessing the Role of Quality Culture in Driving Innovation and Sustainable Business Excellence

Kesufekad Metachew, Letahun Nemeon, Dinfe Egash, Kasil Teyene — 2025-09-10

The purpose of the study is to evaluate the role of quality culture to create an innovation capability and sustainability in business excellence development as of the current organisations in the highly digitalized and competitive environment. Even though there are earlier studies reviewing total quality management (TQM) and innovation independently, a range of empirical studies has researched neither quality culture, innovation, nor sustainable business excellence as a cohesive structure of framework. To fill this gap, the study will assume a quantitative research design in form of a cross-sectional survey on managers and professionals involved in quality across different industries. To test the measurement and the structural models, the Structural Equation Modelling (SEM) was applied, namely, the Partial Least Squares (PLS-SEM). The findings prove that the quality culture positively impacts greatly on innovation capability and sustainable business excellence, and the relationship has a role of innovation capability as a mediator. The structural model demonstrates a large share of variance in innovation (R²= moderate) and sustainable business excellence (R²= strong ) that has a great predictive power. The implications of these findings on managers include its practical use as a way to understand the strategic nature of the decision to incorporate the values and continuous improvement methods with the focus on quality in the context of initiating the innovation process and long-term excellence. The research will add to the body of literature on quality management and innovation by empirically confirming a holistic model of SEM, which connects organisational culture, innovation process, and sustainable business.