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The switched reluctance generator (SRG) has found wide applications due to its advantages of simple structure, flexible controllability, strong fault tolerance, and good adaptability. Establishing reliable communication for SRGs is key to achieving remote control, status monitoring, and early fault detection in SRG-based power systems. This article introduces a novel data and power dual modulation (DPDM) strategy for data and power synchronous transmission (DPST) in an SRG converter-integrated dc power network. The strategy is based on segmented reverse-phase switching operations using current-chopping pulsewidth modulation (PWM), where the phase turn-off angle serves as the switching threshold. Multichannel data are modulated alongside power using orthogonal address codes to generate voltage ripples as data carriers through frequency shift keying (FSK). Consequently, multiple data channels can be transmitted synchronously over the same power bus. On the data receiving end, a sliding window-based fast Fourier transform (FFT) method is employed to demodulate the original data from the bus voltage ripples. Experimental results confirm that the proposed method can accurately transmit multiple-channel data with a limited bus voltage.

Modular input-parallel-output-series dual active bridge (IPOS-DAB) dc/dc converters have been frequently used in electric vehicles, energy routers, and other fields due to their high control flexibility, bidirectional operations, and high power density. Reliable communication is the basis for secure and stable power conversion, but the multimodule system faces many types of communication security threats. In an attempt to address this issue, a frequency division multiplexing (FDM)-based power/signal synchronous transmission (PSST) strategy realized by IPOS-DAB converters is proposed in this article. The dc power bus is utilized as a multiplexed signal transmission medium to realize high power and high bit-rate signal synchronous transmission. The constraints of IPOS-DAB converters with different switching frequencies are derived, together with the peak-to-peak value and fundamental amplitude of output voltage ripples. Then, the expression of the sending signals for the proposed FDM-based PSST strategy is obtained, and signals can be demodulated under a low signal-to-noise ratio (SNR) according to the sign of the designed demodulation criterion based on the coherent demodulation. The effectiveness of the proposed strategy is validated by experimental results in steady-state and transient operations.

This study focuses on distributed event-triggered consensus control under the scenario where only inaccurate agent model information is available. By designing a novel triggering error, a distributed dynamic event-triggered consensus (DETC) protocol is proposed for multiagent systems (MASs) with general linear dynamics over digraphs, without accurate a priori information of agent models. To improve the efficiency of the dynamic triggering law, a mixed triggering threshold is designed with a resilient function integrated to further enlarge interevent intervals. Within the proposed DETC protocol, the computational cost is significantly reduced especially for MASs with nonsparse and high-dimensional agent system matrices. In addition, for each individual agent, the states of neighboring agents used for triggering detections or controller updates are required in an on-demand (instead of continuous) way, which preserves communication resources and facilitates practical implementation. The feasibility of the designed DETC protocol is corroborated by rigorous theoretical analysis on consensus convergence and Zeno behavior exclusion. Finally, simulations are shown to demonstrate the effectiveness of the studied theory.

Photonic power converter (PPC) is a novel dc–dc converter or transformer, that uses photons as the medium to realize energy transfer. Current PPCs can only achieve dc–dc power conversion, limiting their application spectrum. To realize other types of power conversion, this study proposes ac–dc, ac–ac and dc–ac PCCs, which utilizes the combined material characteristics of light-emitting diode and photovoltaic cells. After theoretical proposition, prototypes for dc–dc, ac–dc, ac–ac, and dc–ac PPCs are built for experimental verification, and the total harmonic distortion (THD) is analyzed by power quality analyzer. The working prototypes of the four types of PPCs will find wide applications in various industries.