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Method and device for controlling hybrid active power dynamic filter on electrical storage

A technology of dynamic filters and control methods, applied in active power filtering, AC networks to reduce harmonics/ripples, multi-phase networks to eliminate/reduce asymmetry, etc., can solve difficult work and cannot completely solve power distribution systems Active power shocks and fluctuations, etc., to achieve the effect of eliminating active power shocks

Inactive Publication Date: 2019-04-05
河南川光智能电气有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to solve the technical difficulties that the existing APF is difficult to work in the 35KV and above voltage grid, and cannot completely solve the active power impact and fluctuation of the power distribution system, and provide a kind of APF that can work in the 35KV and above voltage grid Control method and device of hybrid active power dynamic filter onelectrical energy (HAPDFEE for short) based on energy storage

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  • Method and device for controlling hybrid active power dynamic filter on electrical storage
  • Method and device for controlling hybrid active power dynamic filter on electrical storage
  • Method and device for controlling hybrid active power dynamic filter on electrical storage

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Embodiment Construction

[0029] Such as figure 1 As shown, the device for implementing the control method of the energy storage-based hybrid power quality control device in the above embodiment includes a current and voltage real-time sampling circuit 1, a system current and voltage synchronous detection circuit 2, and a power factor that is synchronous with the system and has a power factor of 1. Sinusoidal current and voltage generator circuit 3. Power factor adjustment and instantaneous reactive power compensation data signal processor (DSP) (TMS320F2812) control circuit 4. C point and S point fundamental wave voltage ratio coefficient β (t) value calculation circuit 5. Current Voltage comparison circuit 6. Real-time detection of current and voltage at point C and instantaneous waveform recognition circuit 7. Insulated gate bipolar transistor (IGBT) switch information detection circuit 8. 5th harmonic passive filter circuit 9. 7th harmonic passive filter circuit Circuit 10, Insulated Gate Bipolar T...

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Abstract

The invention provides a method and device for controlling a hybrid active power dynamic filter on electrical storage. The method comprises a step of connecting a passive filter LC and an active powerfilter APF in series, and a step of detecting the change of active power in a power system and compensating the fluctuation and impact of the active power through APF four quadrant control capabilities by using an energy storage device such that the system runs smoothly. The device comprises 5th and 7th harmonic passive filter circuits, an IGBT switch active filter circuit, a PWM drive circuit, apower factor adjustment and transient reactive power compensation data signal processor control circuit, a harmonic control data signal processor control circuit, a dynamic detection non-linear loadtotal current and total voltage circuit, and an inverting high-order harmonic total current and total voltage value output circuit. The abnormal states such as active power impact, fluctuation and unbalanced operation are effectively eliminated, a large amount of information flow can be received and transmitted, and therefore, the device plays a more significant role.

Description

technical field [0001] The invention relates to a control method and device of a hybrid active power dynamic filter based on energy storage, which belongs to a control method and device of power quality used in a distribution network for accommodating renewable energy. Background technique [0002] The power quality of the power supply and distribution system is directly related to the stability of the power system, the safety of electrical equipment, and whether it is economical to use electricity. With the increasing use of power electronic devices and sensitive loads, the power quality problem has become the primary technical issue concerned by the international power supply community. In the power system of the world, the position of distributed power with new energy as the main body in the smart grid is becoming more and more important. However, the randomness, dispersion, and instability of renewable energy such as wind energy, solar energy, and biomass energy in new ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/01H02J3/28H02J3/18H02J3/26
CPCH02J3/01H02J3/18H02J3/26H02J3/28Y02E40/20Y02E40/50
Inventor 韩卫平
Owner 河南川光智能电气有限公司
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