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This paper presents a low harmonic 12 pulse rectifier. Then in order to investigate the influence of leakage inductance on 12 pulse rectifier. A set of improved switching function method is proposed. To obtain the mechanism that input current harmonics can be suppressed by circulating current of DC side, this paper analyzes the relationship between input current, output current and circulating current...
Switched Ethernet has been used widely in industrial applications because of its high speed and deterministic characteristics. This paper proposes an enhanced network recovery (ENR) scheme based on switched Ethernet to handle network failures in the naval combat system. In this study, network failure recovery is explained through message scheduling on switched Ethernet, which is based on previous...
PID is the most common control method in the design of a tank artillery stabilizer which is a position servo control system. Usually, the overshoot conflicts with settling time. This paper presents the dual PID regulating method based on the sliding mode control which can realize both the smaller overshoot and the shorter settling time. The first PID controller focuses on the smallest rise time, and...
In China, the methods of time-control, optical-control and time-optical-control are in common used to control street lamp, particularly in small and medium-sized cities. But due to the backward lighting control and administrative method, the precision is bad, and the result of work is also poor. Through many kinds of sensor combination sense environment's change, the multi-sensor exhibition can combinatory...
The plastic injection molding is widely used for the manufacturing of complicated-shaped and high value-added products. The plastic injection molding machine is the most important equipment for the industry. The development of the injection molding machine greatly affects the application of plastic parts in the fields of electronics, telecommunication, medical treatment and auto industries. In recent...
This paper presents the design and construction of a current pulse power supply used for Micro-arc Oxidation (MAO), which is a novel technology capable of depositing ceramic coatings on the surface of valve metal and their alloys. The load of MAO changes acutely during oxidation process and the load transfers from capacitive characteristic to resistant characteristic. So the current pulse power supply...
Most of the present optical interconnect networks within the high performance computers require either the buffering and opto-electonic conversion of the data packets or the pre-assigning of the optical path from the source to destination, which to a certain extent influence the performance metrics such as latency and throughput. Aiming at the limitation mentioned above, a hybrid optical-electrical...
A three-individual cell direct-equalization circuit is researched in detail by directed graph. This equalizer consists of two basic switch converter topologies and six essential operation modes. Its has reasonable structure topology that can transfer power energy directly from the highest to the lowest by the corresponding switchpsilas on-off control, whenever what imbalance state among these three...
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