Realization of Autonomous Clock Synchronization for Power Packet Dispatching

Tashiro

Hikihara

2015

IEEE Trans. Smart Grid

Self Cite

118

131

A power packet dispatching system is expected to be one of the advanced power distribution systems for controlling electric power, providing energy on demand, and reducing wasted energy consumption. In this paper, power packet routers are designed and experimentally verified for realizing a networked power packet distribution system. While the previously developed router directly forwards the power packet to a load, the new router forwards the packet to the other router with an information tag reattached to the power payload. In addition, the new router can adjust the starting time for forwarding the received power packet to the other site, thus utilizing storage capacity integrated into the router. The results successfully clarify the feasibility of the power packet distribution network.Index Terms-Power distribution system, power packet, power routing.

Section: Discussionmentioning

confidence: 99%

Router for Power Packet Distribution Network: Design and Experimental Verification

Tashiro

Hikihara

2015

IEEE Trans. Smart Grid

Self Cite

118

131

“…In the prototype system, a clock signal is transmitted through a signal cable for keeping clock synchronization among the mixers and routers. Currently, it was also proposed and experimentally verified that the clock synchronization can be achieved by the preamble bit added before header of power packet [9], [10]. By using these prototypes of mixers and routers, the feasibility of networking and extensibility can be evaluated.…”

Section: Prototypes Of Power Packet Dispatching Systemmentioning

confidence: 99%

Power Processing for Advanced Power Distribution and Control

Azuma

Hasegawa

et al. 2017

IEICE Trans. Commun.

Self Cite

SUMMARY A power packet dispatching system is proposed to realize the function of power on demand. This system distributes electrical power in quantized form, which is called power processing. This system has extensibility and flexibility. Here, we propose to use the power packet dispatching system as the next generation power distribution system in selfestablished and closed system such as robots, cars, and aircrafts. This paper introduces the concept and the required researches to take the power packet dispatching system in practical phase from the total viewpoints of devices, circuits, power electronics, system control, computer network, and bio-inspired power consumption. key words : power processing, power packet, quantized control, networking, bio-inspired system, closed system

“…The payload carries electric power with current. The packet dispatching is determined by the attached information of the packet [5][6][7][8][9][10]. In addition, it should be pointed out that the recognition of packet signal as '1' or '0' in the router depends on the voltage of power packets [5,7].…”

Section: Figmentioning

confidence: 99%

“…Otherwise, the packet signal is identified as '0'. As the basic function of the power packet dispatching system, the packet dispatching were studied in [5][6][7][8][9][10]. Synchronous packet dispatching using an external clock line was realized in [5,7].…”

Section: Figmentioning

confidence: 99%

Power packet dispatching with features on safety

Zhou

Hikihara

2016

NOLTA

Self Cite

This paper investigates and proposes one advantageous function of a power packet dispatching system, which has been proposed by authors' group with being apart from the conventional power distribution system. Here is focused on the feature on safety of power packet dispatching which covers two aspects: information safety (protect the information of packet from attackers) and power safety (keep loads safe regarding supplied power from packet). For the purpose of achieving the information safety and the power safety, we introduce simple modulations of power packets before sending them. In particular, in order to protect the information of packets, partial packet modulation is proposed first, i.e., modulating partial information tags of packets. Modulation scheme based on chaotic signal is one possibility for this purpose and we adopt the differential chaos shift keying (DCSK) scheme in this paper. Next, the power safety can be achieved by applying pulse width modulation (PWM) to the payload of packets. Meanwhile, considering the effect of the noise on the packet dispatching, further modulation of the payload using the DCSK scheme is proposed, which can spread the spectrum of the noise. Consequently, we introduce the concept of whole packet modulation, in which PWM is applied to the payload of packets first, and then modulation using the DCSK scheme is applied throughout the whole packet. In this manner, both the information safety and the power safety can be achieved and the spectrum of noise is spread as well. Additionally, it is worth mentioning that the rigorous examination of the modulation method is not the target in this moment.