What are the Hybrid PQ Filters?
Hybrid PQ Filters are a distinctive blend of Active and Passive technologies prevailing under a standard roof in the form of a single system. It generally heightens the advantages of both technologies. Apart from this, it eradicates the harmonics induced in the power supply system. Hybrid filter control works on the rationale of a current-controlled system. Depending on the control principle, Current transformers installation is done in two fields, i.e., distribution supply, which we call a closed-loop, or load’s outcome, which we call the open-loop. Current transformers aren’t required to be installed with Voltage Control.
Hybrid filters are used to reimburse the impoverished power quality fallout occurring because of nonlinear loads. It also assists in the restoration of the power quality. Every active and passive filter module is incorporated into the hybrid filter network to perform each assignment is exceptionally mandatory to encompass in your current system. It is so because it will help you minimize future risks and losses concerning your existing property or assets.
The function of the Hybrid PQ Filters
The overall function of the Hybrid filters is to tackle the PQ problems concerned with voltage and current. The active series and active shunt compensators are combined to reimburse current and voltage-related concerns. Therefore, we generally specify them as hybrid filters. UPQC – Unified Power Quality Conditioner tool is the custom power device. It is generally a mixture of both the compensators, i.e., series and shunt. Here, it has the two VSCs that are united using a single DC bus capacitor.
DSTATCOM, here, is UPQC’s shunt-connected device. Its primary purpose is to reimburse for the matters dealing with disbalance of load, harmonics deletion, PQ problems due to current, and the reactive power inconsistency. DVR, here, is UPQC series connected device. Its main objective is to reimburse for swell, voltage harmonics, notches, disbalance of voltages, sag, and flickers.
Advantages of Hybrid PQ Filters
A hybrid PQ Filter is generally a mix of active filters and passive filters. Hybrid PQ Filters possess the beneath privileges in comparison to the active filters –
- Emits fewer casualties in contrast to the pure active filters
- Low cost and profitable power filtering
- Hassle free installation of filters
- The active filter is small in size.
- Simple to perform various operations
- Acquisition costs are pocket friendly
- Allows modular expansion later on
- Trustworthiness and works for a long term
- Provides utmost flexibility by harmonizing to a substantial quantity of mains disruptions
- It doesn’t require current transformers
- Exceptional system efficiency
- Adheres to the power quality regulations leading to preventing penalties
- Quick solution implementation
- Ameliorated commercial installation downtime and production downtime
- Reduces Carbon Dioxide
- Cost-effective alternative
- Quickly adapted to low-voltage installations
Techniques to improve Hybrid PQ Filters
Here are the two essential techniques the hybrid filters
- In the first case, an additional number of channels, ideally four-plus, is used in the WT. It is so because it contributes to a considerable amount of decomposed sub-images. Preservation of image detail gets more effective using the sub-images selective reconstruction. Also, it helps to eliminate structured image disturbances.
- In the second case, the adaptive wavelet method is used in the hybrid filter. It is pretty much identical to the ones used in the image compression. The Adaptive wavelet method works in a way where orthogonal bases groups. We continuously evaluate in a loop, So that the objective function can reduce outstanding works. The best example of it is medical image processing contraction, image enhancement, detection & segmentation.
Power Matrix Solutions Pvt. Ltd is the leading provider of customized products related to power issues. Years of our expertise in his domain have made us renowned among our customers. Maintaining the hybrid PQ Filters standards is what can assure you to get quality products from us. You may reach us today to get more hands-on knowledge about how hybrid filters can help you with all due respect. Reach out to professionals to get a better insight into it.
