A Kalman-filter method for power control is proposed for broadband, packet-switched TDMA wireless networks. By exploiting the temporal correlation of co-channel interference, a Kalman filter is used to predict future interference power. Based on the predicted interference and estimated path gain between the transmitter and receiver, transmission power is determined to achieve a desired signal-t...

This paper describes the development of a low cost shunt active power filter with digital control, which allows dynamic power factor correction and both harmonics and zero-sequence current compensation. The active filter controller is based on the instantaneous power theory (p-q theory) and was implemented using a standard 16 bits microcontroller. The p-q theory is introduced followed by the pr...

The project deals with Minimum VA rating handled by a Unified Power Quality Conditioner, which consists of Series and Shunt Active Power Filter. The Series Active Filter is Dynamic Voltage Restorer (DVR), which regulates the voltage at the point of common coupling with minimum VA loading. The Shunt Active Filter is Distribution Static Compensator (DSTATCOM) which compensates the reactive power ...

This paper presents the performance analysis of a hybrid filter composed of passive and active filters connected in series. The analysis is done by evaluating the influence of passive filter parameters variations and the effects that different active power filter’s gain have in the compensation performance of the hybrid scheme. The compensation performance is quantified by evaluating the attenu...

The active power filter has been proved to be an effective method to mitigate harmonic currents generated by nonlinear loads as well as to compensate reactive power. The methods of harmonic current detection play a crucial part in the performance of active power filter (APF). This paper presents a new control strategy in which two shunt active power filter configurations are developed in order ...

In this paper, according to the lack of relevant studies based on reactive power compensation, the control method related to this subject has been investigated and applied to the Parallel Hybrid Active Power Filter (P-HAPF). Firstly, the dq base control algorithm is applied for harmonic compensation. Then, the reactive power compensation control which is supplied by active filter of hybrid acti...

High power problem become one of the most important bottleneck of the IC industry. FIR filter is a most basic element in a digital signal processing system. In this paper, we managed to design a new FIR filter that can have low power. We use a residue number system to design a FIR filter in order to reduce power. In our model, we designed a serial modulus adder and a new way to compute modulus ...

In this paper, we have designed a new variable latency adder and its implementation of decimation filter. There are multiple ways to implement a decimationfilter. This filter design combination of CIC (cascaded-integrator-comb) filter and HB (half band) filter as the decimator filter to reduce the frequency sample rate conversion and detail of the implementation step to realize this design in h...

In this paper, we apply the PQ theory with shunt active power filter in an unbalanced and distorted power system voltage to compensate the perturbations generated by non linear load. The power factor is also improved in the current source. The PLL system is used to extract the fundamental component of the even sequence under conditions mentioned of the power system voltage. Keywords—Converter, ...

Power dissipation in CMOS circuits has put forth many technical challenges for VLSI design engineers. Dynamic power and leakage power have increased with increase in frequency of operation and transistor scaling. Signal and image processing applications require FIR filter as a sub system which has multipliers and adders as sub units. Reducing power dissipation in FIR filter will reduce power di...