Abstract
With the extensive development and use of new energy sources, it has become an urgent issue to solve the problem how to effectively use such energy sources. This paper designs a single-phase electric energy router (SPEER) whose main goal is to solve the problem of optimal operation of the home power system under a high penetration rate of new energy. First, a SPEER structure is presented which has an AC-DC hybrid form to meet the power requirements of all household electrical equipment. Compared with the existing structures, its structural design is more suitable for small-capacity systems, such as home power systems. Next, a reasonable, detailed, and feasible control scheme was designed for each part of the SPEER, so that it has the functions of plug and play, power routing, island detection, and synchronous grid connection, and a seamless coordination management scheme between subsystems was designed. Complete functions make it more intelligent in response to various conditions. Finally, the correctness of the designed SPEER and control strategy was verified by experiment.
Highlights
In order to solve the energy shortage problem, people turn their attention to new energy sources.a large number of distributed renewable energy power generation devices have been incorporated into the power grid, such as wind power inverters and photovoltaic power inverters.these distributed power supplies have some notable features: geographical dispersion, intermittent, and random
Because the target population of the single-phase electric energy router (SPEER) is the ordinary household power user and considering that most home users use single-phase AC load, the DC/AC converter in the electric energy router is designed in a single-phase form
The unidirectional DC/DC converter is used as the photovoltaic power so that the photovoltaic power generation is greater than the overall demand of the system, constant generation network interface, and the maximum power point tracking (MPPT) control strategy is voltage control is required for the stable operation of the system [27]
Summary
In order to solve the energy shortage problem, people turn their attention to new energy sources. (HEMS), energy routing could be achieved to obtain different functions, such as peak load shifting, since users’ electricity use behavior is often random and uncertain. This requirement is a heavy electricity plan following, etc. Array,inthe optimal matching of the the power power consumption supply and the realized, so isthat the renewable smartphones to arrange timeload andistarget” This method requires that household appliances electricity use behavior is often random and uncertain. This paper proposes a small-capacity household-level electric requirements of EER, a preliminary analysis of its structural construction was provided [20,21], but energyitrouter architecture. The energy management scheme in this paper is simple, intelligent, and easier to implement
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