Driving reconstruction type circuit based on SRM and vehicle-mounted integrated charging and feeding system

A technology of electrical systems and circuits, applied in control systems, circuit devices, AC network circuits, etc., can solve problems such as large volume, low integration, poor flexibility in power device selection, etc.

Active Publication Date: 2021-09-07
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the existing electric drive reconfiguration vehicle-mounted integrated charging and feeding system based on switched reluctance motors has added a large number of discrete switching devices while realizing multi-mode driving and charging functions. Insufficient flexibility in power device selection

Method used

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  • Driving reconstruction type circuit based on SRM and vehicle-mounted integrated charging and feeding system
  • Driving reconstruction type circuit based on SRM and vehicle-mounted integrated charging and feeding system
  • Driving reconstruction type circuit based on SRM and vehicle-mounted integrated charging and feeding system

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Embodiment 1

[0070] This embodiment provides a reconfigurable circuit based on SRM drive and a vehicle-mounted integrated charging and feeding system. The circuit uses a three-phase switched reluctance motor, and the reconfigurable circuit structure is as follows: figure 2 As shown, it mainly uses three solid-state relays to reconstruct two three-phase half-bridge voltage-type inverter circuits through the DC bus to obtain three single-phase voltage-type bridge inverters, so as to realize the integration of charging and feeding in the drive At the same time, the high integration of the topology is guaranteed.

[0071] In the integrated power converter, the first three-phase half-bridge voltage-type inverter circuit composed of three single-phase voltage-type bridge inverters A, B, and C consists of a switch tube S a1 The emitter and switch tube S a2 The first group of bridge arms of phase A, the switch tube S, and the collectors connected in series b1 The emitter and switch tube S b2 T...

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Abstract

The invention discloses an SRM-based driving reconstruction type circuit and a vehicle-mounted integrated charging and feeding system. According to the circuit, three solid-state relays and a plurality of single-phase voltage type bridge inverters obtained through a DC bus reconstruction mode form an integrated power converter, and the integrated power converter is connected to a power battery and a vehicle-mounted solar photovoltaic panel; the vehicle-mounted integrated charging and feeding system adopting the driving reconstruction type circuit can be suitable for a multi-phase switched reluctance motor, and is combined with a proper control strategy; therefore, various operation modes such as a power battery driving mode, a vehicle-mounted solar photovoltaic panel driving mode, a hybrid driving mode, a regenerative braking mode, a single-phase and three-phase static charging and feeding mode and the like can be realized. The circuit is compact in structure, small in parasitic parameter, low in power consumption and high in power density, switching among different operation modes can be achieved by simply controlling the conducting state of the solid-state relay, and therefore, bidirectional flow of energy among a power battery, a power grid and a motor is achieved.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to an SRM-based drive reconfiguration circuit and a vehicle-mounted integrated charging and feeding system. Background technique [0002] In recent years, problems such as the rapid consumption of non-renewable energy sources and serious environmental pollution have become increasingly serious. Among them, the smog problem caused by traditional vehicle exhaust emissions is a direct threat to human health. In this regard, in order to ensure the green and sustainable development of the ecological economy, it is of strategic urgency to study the advanced technology of new energy vehicles with electric energy as the core. At the same time, with the continuous increase in the number of electric vehicles in my country and the continuous maturity of battery technology, the power battery is regarded as a distributed energy storage device connected to the smart grid, and then unde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P25/08H02P25/092H02P27/08H02M7/797H02M7/5387H02M3/156H02J3/38
CPCH02P25/08H02P25/092H02P27/08H02M7/797H02M7/53871H02M3/156H02J3/381H02J2300/24Y02E10/56
Inventor 孙庆国谢瀚统
Owner HEBEI UNIV OF TECH
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