Double-current simplex composite energy storage system for miniature linear energy conversion system
A composite energy storage, dual-stream simplex technology, used in control systems, control/regulation systems, DC power input conversion to DC power output, etc. problems, to achieve the effect of reducing disturbance, improving energy conversion efficiency, and easy to achieve
Pending Publication Date: 2021-12-03
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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Problems solved by technology
In addition, the switching of the output electric energy of the system between the motoring and generating modes will cause electric power transients, making it impossible to maintain a stable electric energy output, which has a great impact on the power quality on the DC bus. Equipping a certain capacity energy storage device can play a role in maintaining electric / The dynamic balance of power generation, the function of suppressing power fluctuations and stabilizing voltage
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[0028] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0029] This embodiment provides a dual-flow simplex composite energy storage system for a miniature linear energy conversion system, which utilizes the characteristics of high power density of the supercapacitor pack and high energy density of the battery pack, and uses multiple triode switches, freewheeling diodes, and energy storage inductors And filter capacitor design circuit module, which can meet the needs of MFP energy bidirectional flow, instantaneous high-power charge / discharge and input / output high-frequency switching, and effectively store and utilize the system energy residual; at the same time, it can suppress The effect of power fluctuations and stable voltage.
[0030] Such as figure 1 As shown, the composite energy storage system includes: H-bridge PWM drive module, dual-stream simplex DC-DC power conversion module and supercapacitor-batte...
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The invention discloses a double-current simplex composite energy storage system for a miniature linear energy conversion system. The double-current simplex composite energy storage system comprises an H-bridge PWM driving module, a double-current simplex DC-DC power conversion module and a super capacitor-storage battery composite energy storage module; and the super capacitor-storage battery composite energy storage module, the load and the relay K are connected in series to form a loop, the H-bridge PWM driving module and the double-current simplex DC-DC power conversion module are connected with the super capacitor-storage battery composite energy storage module in parallel, and a first filter capacitor C1 is connected between the H-bridge PWM driving module and the double-current simplex DC-DC power conversion module in parallel. And a second filter capacitor C2 is connected in parallel between the double-current simplex DC-DC power conversion module and the super capacitor-storage battery composite energy storage module.
Description
technical field [0001] The invention relates to the technical field of energy and power, in particular to a double-flow simplex composite energy storage system for a miniature linear energy conversion system. Background technique [0002] The linear motor in the micro linear energy conversion system, referred to as MFP, not only serves as a motor to provide compression kinetic energy for the piston in a working cycle, but also serves as a generator to output fuel and burn to release chemical energy. Its maximum power point appears in the process of power generation. When it is used as a generator, the output power is greater than the energy consumed when working in the motor mode, resulting in an energy surplus. It is necessary to equip an energy storage device to store the continuously generated energy surplus of the system. use. In addition, the switching of the output electric energy of the system between the motoring and generating modes will cause electric power transi...
Claims
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Login to View More IPC IPC(8): H02P25/064H02M3/155H02M1/088H02J7/34H02J7/00
CPCH02P25/064H02M3/155H02M1/088H02J7/345H02J7/0068H02J2207/20
Inventor 张赛飞吴维刘勇吴晗苑士华
Owner BEIJING INSTITUTE OF TECHNOLOGYGY